A recording of $0 for the family simply means that they have not saved anything or have spent all the savings.
What is savings?Savings simply means keeping of miney for a period of time in order to cater for future expenses. Saving is defined as income that is not spent or deferred consumption. Saving methods include putting money aside in a deposit account, a pension account, an investment fund, or as cash. Saving also entails lowering expenses, such as recurring costs.
Here, the family wants to save $100 each month and they record their progress toward this goal at the end of each month.
A recording of $0 simply means no savings.
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What is tan 67 degrees
Divide the monomial denominator by writing the fraction as the sun or difference of fractions.
Division of the monomial denominator by writing the fraction as the sum or difference of fractions is [tex]8x+8 - \frac{1}{x^{3}}[/tex].
What is a polynomial equation?
Polynomial long division is a generalized variant of the well-known arithmetic operation known as long division. It is an algorithm for dividing a polynomial by another polynomial of the same or lower degree.
We have,
[tex]\frac{8x^{4} + 8x^{2} - 1}{x^{3}}[/tex]
Break down the polynomial and divide:
[tex]= \frac{8x^{4} }{x^{3} } + \frac{8x^{2}}{x^{3}} + \frac{-1}{x^{3}}[/tex]
Calculating each division we get
[tex]=8x+ 8x - \frac{1}{x^{3} }[/tex]
Therefore the final answer is
[tex]\frac{8x^{4} +8x^{3} −1}{x^{3}} = 8x+8 - \frac{1}{x^{3}}[/tex]
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The monthly output at the Olek Carpet Mill is
Q(x) = 15,000 + 2x2 units, (40 ≤ x ≤ 60)
where x is the number of workers employed at the mill. If there are currently 46 workers, find the instantaneous rate of change of monthly output with respect to the number of workers. That is, find Q'(46).
Q'(46) =
The instantaneous rate of change of monthly output with respect to the number of workers is equal to 184.
What is the instantaneous rate of change?The instantaneous rate of change can be defined as a type of function that describes the average rate at which a quantity increases or decreases with respect to another quantity at a particular instant.
In Mathematics, the instantaneous rate of change can be calculated by taking the derivate of the function with respect to an independent variable. This ultimately implies that, the instantaneous rate of change is equivalent to the change in the derivative value at a particular instant.
Taking the derivate of the given function, we have:
Q(x) = 15,000 + 2x²
Q'(x) = d/dx(15,000) + d/dx(2x²)
Q'(x) = 0 + 2x(2)
Q'(x) = 4x.
At x = 46, we have:
Q'(x) = 4(46)
Q'(x) = 184.
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Complete Question:
The monthly output at the Olek Carpet Mill is Q(x) = 15,000 + 2x² units, (40 ≤ x ≤ 60), where x is the number of workers employed at the mill. If there are currently 46 workers, find the instantaneous rate of change of monthly output with respect to the number of workers. That is, find Q'(46).
Q'(46) =
A submarine was 400 meters below sea level it then moved to 583 meters below sea level. How many meters did the submarine descend? how did you get the answer?
Answer:
Step-by-step explanation:
You subtract 583 from 400 (400-583)
Then you get 183
you have 9 squares and 3 circles what is the ratio
There are 6 circles and 9 squares. What is the simplest ratio of circles to squares?
There are 6 circles and 9 squares.
Factors of 6: 1,2,3,6
Factors of 9: 1,3,9
Common factors: 1,3
GCF (greatest common factor): 3
6:9
Unsimplified ratio
÷3↓↓÷3
Reduce out GCF
2:3
Simplified ratio
Visual representation:
6
2
9
Answer:
Step-by-step explanation:
1. Nine squares to three circles. You can right it as a ratio by using a colon to seperate its ratio!
9 to 3= 9:3
2. If a ratio is not simplified, always simplify it like fractions.
9:3= 3:1
3. Answer: 3:1
Captain scores 120 points on Space Invaders. Tyger scores 10% more points than Captain. How many points does Tyger score?
The number of points scored by Tyger will be 132 points.
What is the number of points?From the information, Captain scores 120 points on Space Invaders. Tyger scores 10% more points than Captain.
Therefore, the number of points scored by Tyger will be:
= Points scored by Captain + (Percentage × Captain point)
= 120 + (10% × 120)
= 120 + 12
= 132
Tyger scored 132 points.
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The number of points scored by Tyger will be 132 points.
What is the number of points?From the information, Captain scores 120 points on Space Invaders. Tyger scores 10% more points than Captain.
Therefore, the number of points scored by Tyger will be:
= Points scored by Captain + (Percentage × Captain point)
= 120 + (10% × 120)
= 120 + 12
= 132
Tyger scored 132 points.
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On Saturday, 120 hotel guests used the valet service, and 280 hotel guests did
not use the valet services. What percentage of the guests at this hotel used the
valet service on Saturday?
Answer: 42.86%
Step-by-step explanation: 120/280*100 = 42.86%
Similarity between concurrent and point of concurrency
Concurrent lines meet at the point of concurrency.
Shown below is a "magic square"
Each column, row and diagonal has the same total.
Work out the missing fractions.
- 15
10
9
20
1
3
20
10
Answer:
123 423 21 34
Step-by-step explanation:
Jaxon bought 10 2/3 pound of apples at the farmer’s Market. If the apples cost $1.80 per pound,how much did jaxon pay for the apples , in dollars and cents
The total amount Jaxon should paid for the apples is 12 dollars which is 1200 cents.
Given,
The quantity of apple bought by Jaxon = 10 2/3 pounds
The cost of one pound of apple = $1.80
We have to find the total amount Jaxon should paid for the apples, in dollars and cents;
Here,
Total amount Jaxon should paid = Quantity of apple bought by Jaxon × Cost of one pound of apple
Total amount Jaxon should paid = 10 2/3 × 1.80
Total amount Jaxon should paid = 12 dollars
1 dollar is equal to 100 cents
Then,
12 dollars = 12 x 100 = 1200 cents.
Therefore,
The total amount Jaxon should paid for the apples is 12 dollars which is 1200 cents.
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Given triangle ABC with vertices A(16,0), B(9,2) and C(5,-12). Which side of triangle ABC represents the altitude of the triangle with a slope of -2/7?
Side AB
side BC
side AC
Answer:
so now i think you can find the slope of the sides.the product of slopes of two perpendicular lines is - so now you can also find the slopes of the altitude. i will do one side for you and you do the remaining the slope of side BC is (2-0)/(9-0) = 2/9 so the slope of the altitude passing through A will be -9/2
Step-by-step explanation:
so i think it would be side AC
Answer:
Side BC
Step-by-step explanation:
Let's calculate the slopes of the sides of triangle ABC:
Slope of side AB = (2 - 0) / (9 - 16) = 2 / (-7) = -2/7
Slope of side BC = (0 - 2) / (2 - 9) = -2 / (-7) = 2/7
Slope of side CA = (0 - 0) / (2 - 16) = 0 / (-14) = 0
Among the three sides, only side BC has a slope of 2/7, which is the negative reciprocal of the given slope of -2/7.
Therefore, side BC represents the altitude of triangle ABC with a slope of -2/7.
How do I solve this question
The partial fraction form of the given fraction [x+5/(x-7)(x-5)] is
[A/(x-7)+B/(x-5)].
What is decomposition to partial fractions?For a rational fraction to be partially decomposed or expanded in algebra, the fraction must be expressed as the product of a polynomial and one or more fractions with a simpler denominator.Partial fraction decomposition is the process of taking a rational expression and breaking it down into smaller rational expressions that we can combine or divide to recover the original rational expression.So, the fraction is:
x+5/(x-7)(x-5)We know that:
px + q/(x-a)(x-b), a≠b ⇒ A/(x-a) + B/(x-b)Use the same identity to get the partial fraction of the given fraction as follows:
x+5/(x-7)(x-5)A/(x-7) + B/(x-5)Therefore, the partial fraction form of the given fraction [x+5/(x-7)(x-5)] is [A/(x-7) + B/(x-5)].
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A poll asked adults in a certain country whether immigration was a good thing or a bad thing for the country. Out of 1,095 respondents, 631 said it was a good thing.
c. Find a 95% confidence interval for the proportion who believe immigration is a good thing.
A 95% confidence interval for the proportion who believe immigration is a good thing is; CI = (0.4173, 0.7173)
What is the Confidence Interval of Proportions?The formula for the confidence interval of proportions is;
CI = p ± z√(p(1 - p)/n)
where;
p is sample proportion
z is z-score at confidence level
n is sample size
We are given;
Number of success; x = 631
Sample size; n = 1095
Thus;
sample proportion; p = x/n = 631/1095 = 0.5763
The z-score at 95% confidence level is 1.96. Thus;
CI = 0.5673 ± 1.96√(0.5673(1 - 0.5673)/1095)
CI = 0.5673 ± 0.015
CI = (0.5673 - 0.15), (0.5673 + 0.15)
CI = (0.4173, 0.7173)
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Find the x- and y-intercepts of the graph of 3x−8y=39. State each answer as an integer or an improper fraction in simplest form.
The x- intercept of the equation is (13,0) and y-intercept of the equation is (0,-39/8) when the equation is 3x-8y=39.
Given that,
The equation is 3x-8y=39.
We have to find the x- intercept and y- intercept of the equation.
We know that,
x/a + y/b = 1 is the intercept form of the line's equation. One of the key types of line equations is this one. In this equation, the sign of the intercepts also enables us to determine where the line is in relation to the coordinate axes.
To find the x- intercept of the equation.
We have to take y as 0.
3x-8(0)=39
3x=39
x=39/3
x=13
To find the y- intercept of the equation.
We have to take x as 0.
3(0)-8y=39
-8y=39
x=-39/8
Therefore, The x- intercept of the equation is (13,0) and y-intercept of the equation is (0,-39/8) when the equation is 3x-8y=39.
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work out the size of angle x 24
Answer:
78°
Step-by-step explanation:
You want the measure of base angle x in an isosceles triangle with a.pex angle 24°.
Base angleThe two base angles of an isosceles triangle are congruent. The sum of all angles is 180°, so we have ...
24° +2x = 180°
12° +x = 90° . . . . . . divide by 2
x = 78° . . . . . . . subtract 12°
The measure of angle x is 78°.
A man has 25 coins in His pocket all of which are dimes and quarters. If the total value of his change is 475 cents, how many dimes and how many quarters does he have
Answer:
10 dimes15 quartersStep-by-step explanation:
You want to know the numbers of dimes and quarters that make 475 cents using 25 coins.
SetupLet q represent the number of quarters. Then 25-q is the number of dimes, and the total value of the coins is ...
25q +10(25-q) = 475
SolutionSimplifying the above equation gives ...
15q +250 = 475
15q = 225 . . . . . . . subtract 250
q = 15 . . . . . . . . . divide by 15; number of quarters
25 -q = 10 . . . . number of dimes
The man has 10 dimes and 15 quarters.
A ball is kicked with an initial velocity of 15 m/s in the horizontal direction and 18 m/s in the vertical direction. (Assume the ball is kicked from the ground.)
At what speed (in m/s) does the ball hit the ground?
For how long (in s) does the ball remain in the air?
What maximum height (in m) is attained by the ball?
A) The speed (in m/s) at which the ball hits the ground is; 23.43 m/s
B) The time (in s) that it takes the ball to remain in the air is; 3.67 s
C) The maximum height attained by the ball is; 16.51 m
How to solve projectile problems?
A) The motion of the ball on the vertical axis is basically uniformly accelerated motion, with acceleration g = 9.81 m/s² and initial vertical velocity v_y = 18 m/s, so the vertical position of the ball at time t is:
y(t) = v_y*t - ¹/₂gt²
The formula for time when the ball hits the ground is;
t = 2v_y/g
t = (2 * 18)/9.81
t = 3.67 s
Thus, vertical velocity at time t is given by the formula;
v_y(t) = v_y - gt
v_y(t) = 18 - (9.81 * 3.67)
v_y(t) = -18 m/s (which shows it is in the opposite direction because of the negative sign)
Thus, the speed at which the ball hits the ground is the resultant of the vertical and horizontal velocity at time t;
v = √(v_x² + v_yt²)
v = √(15² + 18²)
v = 23.43 m/s
b) From a above, the time that the ball remains in the air is the time it takes to hit the ground which is t = 3.67 s
c) The time to reach maximum height is half the time it takes to reach the ground. Thus;
t = 3.67/2 = 1.835 s
Thus maximum height is given by the formula;
y(t) = v_y*t - ¹/₂gt²
y(1.835) = 18(1.835) - ¹/₂(9.81)(1.835²)
y = 16.51 m
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Can you help me solve this problem?
The probability that the sample proportion surviving for at least 3 years will be less than 67% is of:
0.1131 = 11.31%.
Normal Probability DistributionThe z-score of a measure X of a variable that has mean symbolized by [tex]\mu[/tex] and standard deviation symbolized by [tex]\sigma[/tex] is given by the rule presented as follows:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The z-score represents how many standard deviations the measure X is above or below the mean of the distribution, depending if the calculated z-score is positive or negative.Using the z-score table, the p-value associated with the calculated z-score is found, and it represents the percentile of the measure X in the distribution.By the Central Limit Theorem, for a proportion p in a sample of size n, the sampling distribution of sample proportion is approximately normal with mean [tex]\mu = p[/tex] and standard deviation [tex]s = \sqrt{\frac{p(1 - p)}{n}}[/tex], as long as [tex]np \geq 10[/tex] and [tex]n(1 - p) \geq 10[/tex].The proportion and the sample size are given as follows:
p = 0.73, n = 80.
Hence the mean and the standard error are given as follows:
[tex]\mu = 0.73[/tex].[tex]s = \sqrt{\frac{0.73(0.27)}{80}} = 0.0496[/tex]The probability that the sample proportion surviving for at least 3 years will be less than 67% is the p-value of Z when X = 0.67, hence:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
Z = (0.67 - 0.73)/0.0496
Z = -1.21
Z = -1.21 has a p-value of 0.1131.
Hence the probability is:
0.1131 = 11.31%.
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You are walking from home to a clothing store. You stop for a rest after 1/2 miles. The clothing store is actually 3/5 miles from home. How much farther do you have to walk?
Answer:
2/3 u need to walk to reach the clothing shop
Previ
Question 3 Multiple Choice Worth 2 points)
(Pythagorean Theorem and the Coordinate Plane MC)
Determine the length of the line segment shown
-8 -7 -6
O 100 units
025 units
O 10 units
4
08 units
31
2
1
--5433/-2 -10
-1
O
N ?
&
2
3
4
D
5
x↑
The length of the line segment with endpoints at (0, 3) and (-6, -5) is 10 units
What is an equation?An equation shows the relationship between two or more numbers and variables.
The distance between two points A(x₁, y₁) and B(x₂, y₂) on the coordinate plane is:
[tex]AB=\sqrt{(y_2-y_1)^2+(x_2-x_1)^2}[/tex]
The line segment have endpoints at (0, 3) and (-6, -5). Hence:
Length = √[(-5-3)² + (-6 - 0)²] = √(8² + 6²) = √100 = 10
The length of the line segment is 10 units
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hamilton elementary had 1264 students in 2017. in 2018 the numbers of students increased to 1592 students what was the percent increase rounded to the nearest hundredth
Answer: 25.949%
Step-by-step explanation:
Which graph represents the solution set of - 4x - y ≤ - 6?
Answer:
Step-by-step explanation:
Which graph represents the solution set of - 4x - y ≤ - 6?
I’ll give you brainliest if you have the answer
Answer:
BGIA
Step-by-step explanation:
B = 0,4
G =-4,3
I = 4,0
A = 0,1
please help!!!! 50 points
The number of words per sentence in a certain book is normally distributed with a mean of 21 words and a standard deviation of 4 words.
Approximately what percent of sentences in the book are less than 13 words in length?
A. 2.5%
B. 5%
C. 47.5%
D. 87.5%
The answer will be:
B: 5 percent/ 5%
13 words in length will be 5%
Hope this helped
:)
Apply Laws of Exponents to write an equivalent expression for the given expression
Step-by-step explanation:
e⁰ = 1
so, we have
(f² / (f³gh⁶))⁸ = f¹⁶ / (f²⁴g⁸h⁴⁸) = 1 / (f⁸g⁸h⁴⁸)
FYI - depending on what your teacher wants to see as simplified answer, it could be also
1 / (fgh⁶)⁸
or
(1 / (fgh⁶))⁸
but normally it should be the first result form above
1 / (f⁸g⁸h⁴⁸)
Differentiate the function with respect to x.
Answer:
[tex]16x {}^{3} + 1[/tex]
Step-by-step explanation:
We need to differentiate the following function,
[tex]\longrightarrow f(x) = 4x^4 + x [/tex]
Let ,
[tex]\longrightarrow y = f(x) [/tex]
So that ,
[tex]\longrightarrow y = 4x^4+x [/tex]
Differentiating both sides wrt x ,
[tex]\longrightarrow \dfrac{dy}{dx}= \dfrac{d(4x^4+x)}{dx}\\[/tex]
[tex]\longrightarrow\dfrac{dy}{dx}= \dfrac{d(4x^4)}{dx}+\dfrac{dx}{dx}\\ [/tex]
[tex]\longrightarrow \dfrac{dy}{dx} = 4(4)x^{4-1} + 1 \\ [/tex]
[tex]\longrightarrow \underline{\underline{ \dfrac{dy}{dx}= 16x^3 +1}}[/tex]
I need help finding S please help fast
Answer:
s = 89°
Step-by-step explanation:
Exterior angle theorem states that the measure of an exterior angle is equal to the sum of the measures of the two opposite interior angles of the triangle.
[tex] \therefore[/tex]
[tex] \rm \implies (v + 1) \degree + (v - 28) \degree = (v + 32) \degree \\ \\ \rm \implies 2v - 27 \degree = (v + 32) \degree \\ \\ \rm \implies 2v -v = 32 \degree + 27 \degree \\ \\ \rm \implies v = 59 \degree [/tex]
Sum of angles in a straight line is equal to 180°
[tex] \therefore[/tex]
[tex]\rm \implies v + 32 \degree + s = 180 \degree \\ \\ \rm \implies 59 \degree + 32 \degree + s = 180 \degree \\ \\ \rm \implies s + 91 \degree = 180 \degree \\ \\ \rm \implies s = 180 \degree - 91 \degree \\ \\ \rm \implies s = 89 \degree[/tex]
Use the given information to find the number of degrees of freedom, the critical values χ2L and χ2R, and the confidence interval estimate of σ. It is reasonable to assume that a simple random sample has been selected from a population with a normal distribution.
Nicotine in menthol cigarettes 95% confidence; n=23, s=0.25 mg.
The critical values of the chi statistic are; χ²R = 8.643 and χ²L = 42.796
The confidence interval estimate of σ is; 0.20 < σ < 0.45
How to find the critical value of Chi - Statistics?We are given the following data;
Sample size; n = 23
Degree of freedom; df = n - 1 = 23 - 1 = 22
Confidence level; α - level = 99%
Sample standard deviation; s = 0.25 mg
For χ²R;
The significance level is; 1 - (1 - 0.99)/2= 0.995
The degree of freedom is; df = 22
From critical value tables, we know that; χ²R = 8.643
For χ²L ;
The significance level is; (1 - 0.99)/2 = 0.005
The degree of freedom is; df = 22
From critical value tables, we know that; χ²L = 42.796
The confidence interval estimate of σ is;
s * √[(n-1)/χ²L] < σ < s * √[(n-1)/χ²R)]
Plugging in the relevant values gives;
0.28 * √(22/42.796) < σ < 0.28 * √(22/8.643)
0.2008 < σ < 0.4467
0.20 < σ < 0.45
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-5ax6(2ax4 + 7x2)
what might be the answer to this?? (pleasee!! it’s for my semester final.)
The solution of the given expression -5ax⁶(2ax⁴ + 7x²) is equal to -10a²x¹⁰-35ax⁸.
What is an expression?The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.
Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.
The given expression is -5ax⁶(2ax⁴ + 7x²). The solution of the expression will be done as,
E = -5ax⁶(2ax⁴ + 7x²)
E = -10a²x¹⁰-35ax⁸.
Therefore, the solution of the given expression -5ax⁶(2ax⁴ + 7x²) is equal to -10a²x¹⁰-35ax⁸.
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a number is decreased by 6 then multiplied by 4. the final number is greater than the original number solve the inequality
Answer:
n > 8
Step-by-step explanation:
Let's call the unknown number n. Set up the inequality: (n-6)×4>n
Distribute on the left side, subtract the n from the right to the left, and continue solving.