The explanation of how to convert a general form equation to a standard form equation is given below:
How to solveLet's first look at how to convert a general form equation to a standard form equation. Given a general form equation:
x^2 + y^2 + Dx + Ey + F = 0
Complete the square for both x and y:
a. Divide the coefficients D and E by 2, and square the results. Let's call these values Cx and Cy:
Cx = (D/2)^2
Cy = (E/2)^2
b. Add and subtract Cx and Cy on both sides of the equation:
x^2 + Dx + Cx + y^2 + Ey + Cy = -F + Cx + Cy
Rearrange the equation to form the standard form equation:
a. Group the x and y terms and rewrite as perfect squares:
(x + D/2)^2 + (y + E/2)^2 = -F + Cx + Cy
b. Now, compare this to the standard form equation:
(x - h)^2 + (y - k)^2 = r^2
c. Identify the values of h, k, and r:
h = -D/2
k = -E/2
r^2 = -F + Cx + Cy
Now let's see how to convert a standard form equation to a general form equation. Given a standard form equation:
(x - h)^2 + (y - k)^2 = r^2
Expand the squares:
(x^2 - 2hx + h^2) + (y^2 - 2ky + k^2) = r^2
Rearrange the equation to form the general form equation:
x^2 + y^2 - 2hx - 2ky + h^2 + k^2 - r^2 = 0
Compare this to the general form equation:
x^2 + y^2 + Dx + Ey + F = 0
Identify the values of D, E, and F:
D = -2h
E = -2k
F = h^2 + k^2 - r^2
Now you can convert equations between the general form and the standard form. If you're missing some variables in the general form equation, just treat them as zero and proceed with the same steps.
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-16x^2+160x+120 in vertex form
The vertex form of the quadratic expression -16x² +160x+120 is -16(x - 5)² + 520.
What is vertex form?
Vertex form is a way to write a quadratic function in the form:
f(x) = a(x - h)²+ k
where "a" is the vertical stretch or compression factor, "h" and "k" are the x-coordinate and y-coordinate of the vertex of the parabola respectively. The vertex form allows you to easily identify the vertex and the direction of the parabola's opening.
To write -16x²+160x+120 in vertex form, we need to complete the square.
First, let's factor out the coefficient of x²:
-16(x² - 10x) + 120
Next, we need to add and subtract (10/2)² = 25 to the expression inside the parentheses:
-16(x² - 10x + 25 - 25) + 120
Now we can group the first three terms and factor the perfect square trinomial:
-16((x - 5)² - 25) + 120
Simplifying:
-16(x - 5)² + 520
Therefore, the vertex form of the quadratic expression -16x² +160x+120 is -16(x - 5)² + 520.
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Can someone help me asap? It’s due tomorrow. I will give brainliest if it’s correct
The sampling method used by the principal in this scenario is stratified sampling.
What is the sampling?Stratified sampling involves dividing the population into distinct subgroups, or strata, based on certain characteristics (in this case, grade level), and then randomly sampling from each stratum to ensure that each subgroup is represented in the sample.
By organizing the school's population by grade level and sampling from each grade level (freshman, sophomore, junior, and senior), the principal is using stratified sampling to gather data on preferred elective courses.
Therefore, This method helps ensure that the sample is representative of the entire population and can provide more accurate results compared to other sampling methods, such as convenience sampling, systematic sampling, or volunteer sampling, which may introduce biases or limitations in the sample.
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See text below
3. A principal wants to know what electives should be added to the school schedule. He organizes the school's population by grade level and then randomly samples fifty students in the freshman, sophomore, junior, and senior classes about their preferred elective course. What sampling method did the principal use?
convenience sampling
stratified sampling
systematic sampling
volunteer sampling
according to the centers for disease control and prevention, 60% of all american adults ages 18 to 24 currently drink alcohol. is the proportion of california college students who currently drink alcohol different from the proportion nationwide? a survey of 450 california college students indicates that 66% curre quizlert
the proportion of California college students who currently drink alcohol different from the proportion nationwide p0 = 0.60 (nationwide proportion from CDC)
Information provided; we can determine if the proportion of California college students who currently drink alcohol is different from the proportion nationwide by conducting a hypothesis test. Here are the steps:
The null hypothesis (H0) and alternative hypothesis (H1):
H0: The proportion of California college students who drink alcohol is the same as the nationwide proportion.
(p = 0.60).
H1: The proportion of California college students who drink alcohol is different from the nationwide proportion.
(p ≠ 0.60).
The sample proportion (p-hat), sample size (n), and the population proportion (p0):
p-hat = 0.66 (66% of the 450 California college students surveyed)
n = 450 (sample size)
p0 = 0.60 (nationwide proportion from CDC)
The test statistic (z) using the following formula:
[tex]z = (p-hat - p0) / \sqrt((p0 \times (1 - p0)) / n)[/tex]
A standard normal distribution table or calculator to find the p-value associated with the test statistic.
Compare the p-value to a predetermined significance level (α), usually set at 0.05.
- If the p-value is less than α, reject the null hypothesis (H0), suggesting that the proportion of California college students who drink alcohol is different from the nationwide proportion.
- If the p-value is greater than α, fail to reject the null hypothesis (H0), indicating that there is not enough evidence to suggest a difference between the two proportions.
Determine if the proportion of California college students who drink alcohol is significantly different from the nationwide proportion.
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in the anova test, degrees of freedom within (dfw) are equal to ______ and degrees of freedom between (dfb) are equal to (k - 1).
In the ANOVA test, degrees of freedom within (dfw) is equal to the total number of observations minus the total number of groups if we have N total observations and k groups, then dfw = N - k.
The ANOVA (Analysis of Variance) test is a statistical method used to compare the means of three or more groups.
Degrees of freedom within (dfw) are determined by the total number of observations minus the total number of groups, and degrees of freedom between (dfb) is simply the number of groups minus one.
On the other hand, degrees of freedom between (dfb) is equal to the number of groups minus 1, which is simply k - 1.
So, the final answer is:
dfw = N - k
dfb = k - 1
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for a certain type of hay fever, medicine h has a 30% probability of working. in which distributions does the variable x have a binomial distribution? select each correct answer.
The distribution in which variable x has binomial distribution are as follow,
Option A) When the medicine is tried with two patients, X is the number of patients for whom the medicine worked.
Option D) When the medicine is tried with six patients, X is the number of patients for whom the medicine worked.
When the medicine is tried with two patients, X is the number of patients for whom the medicine worked.
This variable X follows a binomial distribution .
Because there are two independent trials two patients.
With a constant probability of success 30%.
And the outcome of one trial doesn't affect the outcome of the other.
When the medicine is tried with six patients, X is the number of patients for whom the medicine does not work.
This variable X does not follow a binomial distribution.
Because the probability of success is not constant it's the complement of 30%, which is 70%.
Also, the outcome of one trial affects the outcome of the other trials.
As there are only six patients .
Number of patients for whom medicine does not work depends on number of patients for whom it worked.
When the medicine is tried with six patients, X is the number of patients for whom the medicine worked.
This variable X follows a binomial distribution.
Because there are six independent trials six patients with a constant probability of success (30%) .
The outcome of one trial doesn't affect the outcome of the other.
When the medicine is tried with two patients, X is the number of doses each patient needs to take.
This variable X does not follow a binomial distribution.
Because it's not a count of successes out of a fixed number of independent trials.
But rather a continuous variable that can take any non-negative value.
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The above question is incomplete, the complete question is:
For a certain type of hay fever, Medicine H has a 30% probability of working.
In which distributions does the variable X have a binomial distribution?
Select EACH correct answer.
A. When the medicine is tried with two patients, X is the number of patients for whom the medicine worked.
B. When the medicine is tried with six patients, X is the number of patients for whom the medicine does not work.
C. When the medicine is tried with six patients, X is the number of patients for whom the medicine worked.
D. When the medicine is tried with two patients, X is the number of doses each patient needs to take.
Identify the expression that is not equivalent to 6x + 3.
The resultant value of the given expression x² + 10x + 24 when x = 3 is (C) 63.
What are expressions?A finite collection of symbols that are properly created in line with context-dependent criteria is referred to as an expression, sometimes known as a mathematical expression.
Expressions in writing are made using mathematical operators such as addition, subtraction, multiplication, and division.
For instance, "4 added to 2" will have the mathematical formula 2+4.
So, we have the expression:
= x² + 10x + 24
Now, solve when x = 3 as follows:
= x² + 10x + 24
= 3² + 10(3) + 24
= 9 + 30 + 24
= 63
Therefore, the resultant value of the given expression x² + 10x + 24 when x = 3 is (C) 63.
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Correct question:
Evaluate the expression when x = 3.
x² + 10x + 24
a. 81
b. 86
c. 63
d. 60
I need help I can't do math
Answer:
Step-by-step explanation:
You will first need to remember when solving equations or inequalities that have a variable you will need to make sure that the variable is on one side alone.
So, b-2>-1 you will add 2 to both sides . Whatever you do to one side of the equal sign or inequality you do to the other side.
b-2>-1
+2 +2
b > 1
Also, because it has a line under the greater than or equal to sign you will graph it on a number line as a closed circle with the closed circle on the 1 and the arrow pointing to the right. The symbol in the inequality is the way the arrow should be pointing . ≤ ≥ closed circle < > open circle.
closed circle and arrow pointing to the right →
The second selection is the right one.
a work system has five continuous stations that have process times of 5, 8, 4, 7, and 8 min/unit respectively. what is the process time of the system?
The process time of the system is 32 min/unit.
Juliet conducted a survey to find the favorite type of book of the students at her school. She asked 20 students from her class what their favorite type of book is. Juliet concludes that short stories is the favorite type of book of the students in her school because 80% of the students in her class like short stories.
Use at least two sentences to explain why Juliet's sample may not be valid. Make sure to use facts to support your answer
Answer: See Bellow
Step-by-step explanation:
Juliet's sample may not be valid for several reasons. Firstly, her sample size of 20 students may not represent the entire student population at her school. If her class is not a random sample of the whole student population, her results may not generalize to the entire school. Additionally, the model may suffer from selection bias if she only surveyed students she knew liked short stories or if she conducted the survey in a way that only sure students responded. Therefore, it is essential to have a large and representative sample to ensure the validity of the conclusions drawn from the survey results.
an open box will be made by cutting a square from each corner of a 16-inches by 10-inches piece of cardboard and then folding up the sides. what size square should be cut from each corner in order to produce a box of maximum volume? what is that maximum volume?
The size of the square to cut is 5/3 inches and the maximum volume of the box is 266.67 cubic inches.
To find the size of the square to cut and the maximum volume, we can follow these steps:
Let's call the length of each side of the square to be cut x inches. So the dimensions of the base of the box would be (16-2x) inches by (10-2x) inches.
The height of the box would be x inches since we are folding up the sides.
The volume of the box can be found by multiplying the length, width, and height: V = (16-2x)(10-2x)x.
To find the maximum volume, we can take the derivative of V with respect to x and set it equal to zero, since the maximum volume occurs at a critical point.
After taking the derivative and simplifying it, we get the equation 24x^2 - 520x + 1600 = 0.
Solving this quadratic equation, we get x = 5/3 or x = 20/3. Since x must be less than 5 (the length of the shorter side), the only feasible solution is x = 5/3 inches.
Plugging this value of x back into the equation for the volume, we get V = (16-2(5/3))(10-2(5/3))(5/3) = 266.67 cubic inches.
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you are thinking of combining designer whey and muscle milk to obtain a 7-day supply that provides exactly 262 grams of protein and 54 grams of carbohydrates. how many servings of each supplement should you combine in order to meet your requirements?
We need approximately 12 servings of Designer Whey and 2 servings of Muscle Milk to obtain a 7-day supply that provides exactly 262 grams of protein and 54 grams of carbohydrates.
Let x be the number of servings of Designer Whey and y be the number of servings of Muscle Milk needed to obtain a 7-day supply that provides exactly 262 grams of protein and 54 grams of carbohydrates.
From the information given, we know that each serving of Designer Whey provides 20 grams of protein and 3 grams of carbohydrates, and each serving of Muscle Milk provides 16 grams of protein and 9 grams of carbohydrates.
Therefore, we can set up the following system of equations:
20x + 16y = 262
3x + 9y = 54
To solve for x and y, we can use any method of solving a system of equations. For example, we can use substitution:
From the second equation, we can solve for x in terms of y:
x = (54 - 9y)/3 = 18 - 3y
Substituting this into the first equation, we get:
20(18 - 3y) + 16y = 262
Simplifying, we get:
80y = 182
Solving for y, we get:
y = 2.275
Substituting this into the equation x = 18 - 3y, we get:
x = 12.175
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hat kind of cups for measuring are sometimes made from glass or something transparent so the markings on the side with different measurements are visible? a tare measuring cups b maillard measuring cups c standard measuring cups d graduated measuring cups
The graduated measuring cups are made from something glass or something transparent to markings on the side with different measurements are visible. Option (d) is the correct answer.
The kind of cups for measuring that are sometimes made from glass or something transparent so the markings on the side with different measurements are visible are called graduated measuring cups. These cups are designed to make measuring precise amounts of liquid or dry ingredients easy, and the transparent material allows you to see the measurement markings clearly. Graduated measuring cups are commonly used in baking and cooking, as well as in scientific research and other applications where accurate measurements are essential.
Therefore, Graduated measuring cups is the answer.
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Consider the two triangles shown below. Two triangles. The first triangle has a side length of five units, a one hundred seventeen degree angle, a side of seven units. The second triangle has a side length of five units, a one hundred seventeen degree angle, a side of seven units. Two triangles. The first triangle has a side length of five units, a one hundred seventeen degree angle, a side of seven units. The second triangle has a side length of five units, a one hundred seventeen degree angle, a side of seven units. Note: The triangles are not drawn to scale. Are the two triangles congruent
In this case, both triangles have a side length of 5 units and a side length of 7 units, and they share an angle of 117 degrees. Therefore, they satisfy the ASA criterion, and we can conclude that they are congruent.
Congruent?Congruent is a mathematical term used to describe two figures or shapes that have the same size and shape. In other words, two figures are congruent if they have exactly the same dimensions and the same angles. When two figures are congruent, they can be superimposed on each other without any overlap or gap between them. Congruent figures are often denoted by the symbol ≅. For example, if two triangles have the same size and shape, we can write them as ∆ABC ≅ ∆DEF, which means that triangle ABC is congruent to triangle DEF. Congruent figures play an important role in geometry and other branches of mathematics.
Yes, the two triangles are congruent.
In Euclidean geometry, if two angles and a side of one triangle are equal to two angles and a side of another triangle, then the two triangles are congruent. This is known as the angle-side-angle (ASA) congruence criterion.
In this case, both triangles have a side length of 5 units and a side length of 7 units, and they share an angle of 117 degrees. Therefore, they satisfy the ASA criterion, and we can conclude that they are congruent.
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Instructions: Write the equation of the line in Slope-Intercept Form given the information below.
Thanks
Answer:
y=4x+5
Step-by-step explanation:
y=mx+b
m=4
b=5
An investment of $600 is made into an account that earns 6. 5% annual simple interest for 15
years. Assuming no other deposits or withdrawals are made, what will be the balance in the
account?
According to the investment, after 15 years, the balance in the account would be $1185.
To calculate the final balance after 15 years, we can use the formula for simple interest:
Simple Interest = Principal x Interest Rate x Time
In this case, the principal is $600, the interest rate is 6.5%, and the time is 15 years.
Simple Interest = $600 x 0.065 x 15
Simple Interest = $585
So the investment of $600 earns $585 in simple interest over 15 years. To find the final balance, we add the interest earned to the initial investment:
Final Balance = Principal + Simple Interest
Final Balance = $600 + $585
Final Balance = $1185
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A frog catches insects for their lunch. The frog likes to eat flies and mosquitoes in a certain ratio, which the diagram shows.
A tape diagram with 2 tapes of unequal lengths. The first tape has 3 equal parts. A curved bracket above the first tape is labeled Flies. The second tape has 7 equal parts of the same size as in the first tape. A curved bracket below the second tape is labeled Mosquitoes.
A tape diagram with 2 tapes of unequal lengths. The first tape has 3 equal parts. A curved bracket above the first tape is labeled Flies. The second tape has 7 equal parts of the same size as in the first tape. A curved bracket below the second tape is labeled Mosquitoes.
The table shows the number of flies and the number of mosquitoes that the frog eats for two lunches.
Based on the ratio, complete the missing values in the table.
Day Flies Mosquitoes
Monday
15
1515
Tuesday
14
1414
when solving an oblique triangle given three sides, use the ---select--- form of the law of cosines to solve for an angle.
When solving an oblique triangle given three sides, use the inverse cosine form of the Law of cosines to solve for an angle.
When solving an "oblique-triangle" given three sides, we would use the inverse cosine, form of the Law of Cosines to solve for an angle.
The "Inverse-Cosine" function allows us to find the measure of an angle when given the ratio of the lengths of the triangle's sides.
The "Law-of-Cosines" relates the lengths of the sides of a triangle to the cosine of one of its angles.
The "Law-of-Cosines" states that for any triangle with sides of lengths a, b, and c, and opposite angles A, B, and C, respectively:
⇒ c² = a² + b² - 2ab × cos(C),
To solve for an angle, we would rearrange the equation to find the cosine of the angle,
⇒ Cos(C) = (a² + b² - c²)/(2ab),
Then, we will take the inverse cosine of both sides of the equation to find the value of the angle,
⇒ C = cos⁻¹((a² + b² - c²)/(2ab)),
This helps us to find the measure of angle C, depending on the units used in the original triangle sides.
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The given question is incomplete, the complete question is
When solving an oblique triangle given three sides, use the _____ form of the Law of cosines to solve for an angle.
40 people were asked whether they can sew and whether they can knit. 14 of them can sew and 12 of them can knit. 5 of the people who can sew can also knit. How many of the people asked can neither sew nor knit?
Answer:
data given
Universal set 40people
people who can sew 14
people who can knit 12
people who can do both 5
Step-by-step explanation:
•people who can sew only
=14-5
=9
•people who can knit only
=12-9
=7
Union of people who can sew and the one who can knit
=9+7+5
=21
who do neither
=40-21
=19
: .people neither sew or knit are 19
Special Right Triangles (Radical Answers)
The triangle below is equilateral. Find the length of side x in simplest radical form with a rational denominator.
The triangle is given as equilateral and the length of the perpendicular of the given equilateral triangle is 13.85.
What is Pythagorean theorem?It states that the sum of the squares of the two shorter sides of a right triangle is equal to the square of the hypotenuse, the longest side of the triangle. This theorem can be used to determine the length of the sides of a right triangle if two sides are known.
The triangle is given as equilateral. As we know he perpendicular in a equilateral triangle divides a line into to equal parts, so
Base= 8+8
= 16
As it is a equilateral triangle, all the sides will be equal.
Now, we can use the Pythagorean theorem to find the length of the perpendicular, which can be found by using the formula:
16²= 8² + x²
x² = 16²- 8²
x = √192
x = 13.85
Thus, the length of the perpendicular of the given equilateral triangle is 13.85.
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Joshua started his own lawn care business. He donates 10% of his income to a local charity, which is recognized by the IRS as a qualified charitable organization. Joshua can claim expenses from his business and charitable donations as , and they will reduce the.
first blank having: Tax credits
or
tax reductions
second having: amount of taxable income
or
amount of tax owned
Joshua started his own lawn care business. He donates 10% of his income to a local charity, which is recognized by the IRS as a qualified charitable organization. Joshua can claim expenses from his business and charitable donations as tax reductions, and they will reduce the amount of taxable income.
The first blank should be filled with "tax reductions" and the second blank should be filled with "amount of taxable income."
The first blank should be filled with "tax reductions". Tax reductions reduce the amount of income that is subject to tax, whereas tax credits directly reduce the amount of tax owed.The second blank should be filled with "amount of taxable income." Business expenses and charitable donations are deductible from taxable income, meaning they reduce the amount of income that is subject to tax. By reducing the taxable income, the amount of tax owed will also be reduced.Hence, the correct statement would be: "Joshua can claim expenses from his business and charitable donations as tax reductions, and they will reduce the amount of taxable income."
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Help please? I just need an answer. A clear explanation earns brainliest. this is a repost since i posted the wrong photo last time.
Answer: x^2+2x-7/x-1
There are only Ured counters and g green counters in a bag. A counter is taken at random from the bag. The probability that the counter is green is 3
7
The counter is put back in the bag. 2 more red counters and 3 more green counters are put in the bag. A counter is taken at random from the bag. The probability that the counter is green is 6
13
Find the number of red counters and the number of green counters that were in the bag originally
Number of red counters in the original bag is 3, and the number of green counters is 7.
Let's use algebra to solve the problem. Let U be the number of red counters and G be the number of green counters originally in the bag.
From the first part of the problem, we know that
Probability (selecting a green counter) = G / (U + G) = 3/7
Solving for U in terms of G, we get
U = (7G - 3G) / 3 = 4G/3
So we know that there were 4G/3 red counters and G green counters in the bag originally. But since the number of counters must be a whole number, we can assume that there were 4R red counters and 3G green counters originally, where R and G are both integers and R + G is the total number of counters.
After adding 2 red and 3 green counters, the number of counters in the bag is now R + 2 + G + 3 = R + G + 5.
From the second part of the problem, we know that
P(selecting a green counter) = (G + 3) / (R + G + 5) = 6/13
Solving for R in terms of G, we get
R = (13G - 9G - 15) / 7 = 4G/7 - 15/7
Since R must be an integer, we can try different values of G to see if R is an integer. For example, if G = 7, then R = 3 and the total number of counters is 10.
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The given question is incomplete, the complete question is:
There are only U red counters and G green counters in a bag. A counter is taken at random from the bag. The probability that the counter is green is 3/7. The counter is put back in the bag. 2 more red counters and 3 more green counters are put in the bag. A counter is taken at random from the bag. The probability that the counter is green is 6/13. Find the number of red counters and the number of green counters that were in the bag originally
Help please, I'm so lost
I gotchu <3
Since the vertex is (0, -3), the quadratic function can be written in vertex form as:
f(x) = a(x - 0)^2 - 3
Where 'a' is a constant that determines the shape of the parabola. Since the end behavior of the function is y --> - Infinite as x --> - infinite and y --> - Infinite as x --> + infinite, the leading coefficient 'a' must be negative.
So, f(x) = -a(x^2 - 0x) - 3
Now, using the given point (1, -7) on the parabola, we can substitute the coordinates into the function and solve for 'a'.
-7 = -a(1^2 - 0(1)) - 3
-7 = -a - 3
a = 10
Therefore, the quadratic function that satisfies the given characteristics is:
f(x) = -10x^2 - 3
Hope this helps :)
what is the general formula for the bayesian credible interval? what distribution is the critical value taken from?
Answer: p(θ|x) dθ = 1 − α.
Step-by-step explanation: the critical value is computed based on the given significance level α and the type of probability distribution of the idealized model
A rectangular prism is shown in the image.
A rectangular prism with dimensions of 5 yards by 5 yards by 3 and one half yard.
What is the volume of the prism?
Therefore, the volume of the rectangular prism is 87.5 cubic yards.
What is prism?A prism is a transparent object, usually made of glass or plastic, that refracts or bends light as it passes through it. It has at least two flat surfaces, called faces, that are usually parallel and rectangular in shape, and two non-parallel faces, called bases, which are usually triangular in shape. When light enters a prism, it is refracted, or bent, as it passes through the prism and is separated into its component colors, creating a rainbow effect. Prisms are often used in optics and science experiments to study the properties of light, such as its wavelength and polarization. They are also commonly used in optical instruments such as binoculars, telescopes, and cameras to help focus and direct light.
The volume V of a rectangular prism is given by the formula:
V = length x width x height
In this case, the length is 5 yards, the width is also 5 yards, and the height is 3- and one-half yard.
To calculate the volume, we can plug this value into the formula:
V = 5 yards x 5 yards x 3.5 yards
Simplifying this expression, we get:
V = 87.5 cubic yards
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Answer:
The volume of a rectangular prism is the product of its length, width, and height. In this case, the length is 5 yards, the width is 5 yards, and the height is 3.5 yards. Therefore, the volume of the prism is 5 * 5 * 3.5 = 87.5 cubic yards.
Here is the calculation:
Volume = length * width * height
= 5 yards * 5 yards * 3.5 yards
= 87.5 cubic yards
Step-by-step explanation:
at a booth at the school carnival in past years, they've found that 22% of students win a stuffed toy ($3.60), 16% of students win a jump rope ($1.20), and 6% of students win a t-shirt ($7.90). the remaining students do not win a prize. if 150 students play the game at the booth, how much money should the carnival committee expect to pay for prizes for that booth?: *
For a percentage data of students who play the different game and win the prize, the expected amount to pay for prizes for that booth by the carnival committee is equals to the $218.70.
We have a booth of school carnival in past years, The percentage of students win a stuffed toy = 22%
The percentage of students win a jump rope = 16%
The percentage of students win a t-shirt
= 6%
The winning amount for stuffed toy game = $ 3.60
The winning amount for jump rope game = $1.20
The winning amount for t-shirt game
= $7.90
The remaining students do not win a prize. Now, total number of students play the game at the booth = 150
So, number of students who win stuffed toy = 22% of 150 = 33
Number of students who win jump rope = 16% of 150 = 24
Number of students who win stuffed toy
= 6% of 150 = 9
For determining the expected pay using the simple multiplication formula. Total expected pay for prizes for that booth is equals to the sum of resultant of multiplcation of number of students who play a particular game into pay amount for that game. That is total excepted pay in dollars = 3.60 × 33 + 1.20 × 24 +7.90 × 6
= 218.7
Hence required value is $218.70.
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can someone give me the answers to these 5?? pleaseee!!
The MAD of the hourly wages given would be $ 0.48. The range would be $ 2.00. Q1 would be $8.25. Q3 would then be $9.25. The IQR would be $1.00
How to find the number summaries ?Calculate the MAD:
First, find the mean of the data set:
mean = (sum of all values) / (number of values)
mean = (8.25 + 8.50 + 9.25 + 8.00 + 10.00 + 8.75 + 8.25 + 9.50 + 8.50 + 9.00) / 10
mean = 88.00 / 10 = 8.80
Then, find the mean of these absolute deviations:
MAD = (sum of absolute deviations) / (number of values)
MAD = (0.55 + 0.30 + 0.45 + 0.80 + 1.20 + 0.05 + 0.55 + 0.70 + 0.30 + 0.20) / 10
MAD = 4.10 / 10 = 0.41
Calculate the range:
range = maximum value - minimum value
range = 10.00 - 8.00 = 2.00
Find Q1 and Q3:
{8.00, 8.25, 8.25, 8.50, 8.50, 8.75, 9.00, 9.25, 9.50, 10.00}
Q1 is the median of the lower half, and Q3 is the median of the upper half.
Lower half: {8.00, 8.25, 8.25, 8.50, 8.50}
Upper half: {8.75, 9.00, 9.25, 9.50, 10.00}
Q1 = median of lower half = 8.25
Q3 = median of upper half = 9.25
Calculate the IQR:
IQR = Q3 - Q1
IQR = 9.25 - 8.25 = 1.00
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Two bank accounts open with deposits of $1,810 and annual interest rates of 2.5%. Bank A uses simple interest and Bank B uses interest compounded monthly How much more in interest does the account at Bank B earn in 5 years?
[tex]~~~~~~ \stackrel{ \textit{\LARGE Bank A} }{\textit{Simple Interest Earned}} \\\\ I = Prt\qquad \begin{cases} I=\textit{interest earned}\\ P=\textit{original amount deposited}\dotfill & \$1810\\ r=rate\to 2.5\%\to \frac{2.5}{100}\dotfill &0.025\\ t=years\dotfill &5 \end{cases} \\\\\\ I = (1810)(0.025)(5) \implies I = 226.25 \\\\[-0.35em] ~\dotfill[/tex]
[tex]~~~~~~ \stackrel{ \textit{\LARGE Bank B} }{\textit{Compound Interest Earned Amount}} \\\\ A=P\left(1+\frac{r}{n}\right)^{nt} \quad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{original amount deposited}\dotfill &\$1810\\ r=rate\to 2.5\%\to \frac{2.5}{100}\dotfill &0.025\\ n= \begin{array}{llll} \textit{times it compounds per year}\\ \textit{monthly, thus twelve} \end{array}\dotfill &12\\ t=years\dotfill &5 \end{cases}[/tex]
[tex]A = 1810\left(1+\frac{0.025}{12}\right)^{12\cdot 5} \implies A \approx 2050.73~\hfill \underset{ interest }{\stackrel{2050.73~~ - ~~1810 }{\approx 240.73}} \\\\[-0.35em] ~\dotfill\\\\ 240.73~~ - ~~226.25 ~~ \approx ~~ \text{\LARGE 14.48}[/tex]
Select the correct answer. Given that a function, g, has a domain of -20 ≤ x ≤ 5 and a range of -5 ≤ g(x) ≤ 45 and that g(0) = -2 and g(-9) = 6, select the statement that could be true for g. A. g(-13) = 20 B. g(7) = -1 C. g(0) = 2 D. g(-4) = -11
Therefore, the correct answer is A. We cannot determine whether g(-13) = 20 or not as -13 is outside the domain of g, but it is a possibility within the Domain range of g.
How are the domain and range determined?Determine the values of the independent variable x for which the function is specified in order to find the domain and range of the equation y = f(x). Simply write the equation as x = g(y), and then determine the domain of g(y) to determine the function's range.
Since g has a domain of -20 ≤ x ≤ 5 and a range of -5 ≤ g(x) ≤ 45, we can eliminate options B and D as they fall outside the range of g.
Since -13 is outside of the range of g, we are unable to verify whether g(-13) = 20 for option A.
For option C, we are given that g(0) = -2, so option C cannot be true.
Therefore, the correct answer is A. We cannot determine whether g(-13) = 20 or not as -13 is outside the domain of g, but it is a possibility within the range of g.
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a line segment is plotted in the coordinate plane. It has endpoints of (-3, -3) and (5, -3). The line segment is one side of a square. What is the area of the square?
The Area of square is 64 square unit.
We have the coordinates (-3, -3) and (5, -3).
Using distance formula
d = √ (5 + 3)² + (-3 + 3)²
d= √8² + 0
d= 8 units
So, the Area of square
= d x d
= 8 x 8
= 64 square unit
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