Let X have binomial distribution b(x; 30,0.3), then P(X = 10) = 3.9 x 10^-6.
To find the probability of a specific value for X in a binomial distribution, we can use the formula:
P(X = x) = (n choose x) * p^x * (1-p)^(n-x)
where n is the number of trials, p is the probability of success in each trial, x is the number of successes we are interested in, and (n choose x) is the binomial coefficient.
In this case, we are given that X has a binomial distribution with parameters n = 30 and p = 0.3, and we want to find P(X = 10). Plugging these values into the formula, we get:
P(X = 10) = (30 choose 10) * 0.3^10 * 0.7^20
Using a calculator or software, we can calculate:
(30 choose 10) = 30,045,015
0.3^10 ≈ 0.000005
0.7^20 ≈ 0.026
Therefore,
P(X = 10) ≈ 30,045,015 * 0.000005 * 0.026 ≈ 3.9 x 10^-6
So the probability of getting exactly 10 successes in 30 trials with a success probability of 0.3 is approximately 3.9 x 10^-6.
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How do you solve question 8 of geometry worksheet? (Grade 8th)
5. A recent investigation into a rare blood disorder
found 3 out of 500 people had genetic markers
for it.
(a) Test at 75% confidence if the percentage of people
with this genetic marker is under 1%.
The null hypothesis and conclude that there is sufficient evidence to support the claim that the percentage of people with genetic markers is less than 1%.
To test whether the percentage of people with genetic markers is less than 1%, we can use a one-tailed hypothesis test with the following null and alternative hypotheses:
H0: p >= 0.01
Ha: p < 0.01
where p is the true proportion of people with the genetic markers.
Using the sample proportion, p-hat = 3/500 = 0.006, and the sample size, n = 500, we can calculate the test statistic z:
z = (p-hat - p) / sqrt(p * (1 - p) / n)
= (0.006 - 0.01) / sqrt(0.01 * 0.99 / 500)
= -1.434
At 75% confidence, the critical value for a one-tailed test is -1.15 (using a standard normal distribution table or calculator). Since our calculated test statistic (-1.434) is less than the critical value (-1.15), we reject the null hypothesis and conclude that there is sufficient evidence to support the claim that the percentage of people with genetic markers is less than 1%.
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write the first four nonzero terms of the mclaurin series for f', the derivative of f. express f' as a rational function for |x| < r
If f(x) can be expressed as a rational function, you can differentiate f(x) to find f'(x), and then express f'(x) as a rational function within the given interval.
To find the first four nonzero terms of the Maclaurin series for f', the derivative of f, you need to follow these steps:
1. Find the Maclaurin series for the original function, f(x).
2. Differentiate the Maclaurin series for f(x) term-by-term to obtain the series for f'(x).
3. Identify the first four nonzero terms of the series for f'(x).
Let's assume you already have the Maclaurin series for f(x) in the form:
f(x) = a₀ + a₁x + a₂x² + a₃x³ + ...
Now, differentiate f(x) with respect to x to obtain f'(x):
f'(x) = a₁ + 2a₂x + 3a₃x² + ...
Here, we have the first four nonzero terms of the Maclaurin series for f'(x).
For the second part of your question, to express f'(x) as a rational function for |x| < r, it's necessary to know the specific function f(x). However, if f(x) can be expressed as a rational function, you can differentiate f(x) to find f'(x), and then express f'(x) as a rational function within the given interval.
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Rena knows a dollar coin has a mass of a little less than 10 grams. She estimates 1 kilogram of coins would be be worth more than a million dollars. Is this reasonable explain.
Answer: No, it is not reasonable that 1 kilogram of coins would be worth more than a million dollars.
There are a few reasons why this is the case:
1. A kilogram of coins would contain 1000 grams. If each dollar coin weighs less than 10 grams, then a kilogram of dollar coins would contain more than 100 coins. Even if each coin were worth $1000 (which is much more than the face value of a dollar coin), 100 coins would only be worth $100,000.
2. In reality, each dollar coin is worth exactly $1. This means that a kilogram of dollar coins would be worth $1000, which is much less than a million dollars.
3. If Rena's estimate were true, then a single dollar coin would be worth more than $1000, which is clearly not the case.
Therefore, Rena's estimate is not reasonable.
Step-by-step explanation:
This is not reasonable.
What is unit Conversion?Conversion could appear difficult, but this tip will make it simple for you to convert any unit. The fundamental rule is to multiply when converting from a larger unit to a smaller unit. Divide if you need to go from a smaller to a larger unit.
We have,
A dollar coin has a mass of a little less than 10 grams.
as, 1 Kg = 1000 gm
let a dollar coin mass be x.
So, x < 10 gm
and, 100x < 1000
Now, comparing 1000000 x < 1000000 gm
1000000 x < 1000 Kg
Thus, this is not reasonable.
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What is the radius of each figure described? a. A sphere with a volume of 500*3. 14/3 cm^3 b. A cylinder with a height of 3 and a volume of 147*3. 14 c. A cone with a height of 12 and a volume of 16*3. 14
The radius of each shape, sphere, cylinder and cone are 5, 7 and 2 cm respectively.
The formula for the volume of sphere is -
V = 4/3πr³, where V refers to volume and r is the radius. So, 500 × 3.14/3 = 4/3πr³
We know that π is 3.1 and both π and 1/3 are common on both side thus will cancel out each other.
r³ = 500/4
r³ = 125
r = [tex] \sqrt[3]{125} [/tex]
r = 5 cm
The volume of cylinder is given by the formula -
V = πr²h
147 × 3.14 = 3.14 × r² × 3
r² = 147/3
r = ✓49
r = 7
The volume of cone is -
V = πr²h/3
16 × 3.14 = 3.14 × r² × 12/3
r² × 12 = 16 × 3
r² = (16 × 3)/12
r² = 4
r = ✓4
r = 2
Hence, the radius of sphere, cylinder and come are 5, 7 and 2 cm.
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A soccer couch wants to choose one starter and one reserve player for a certain position. If the candidate players are 8 players, in how many ways can they be chosen and ordered?
The coach has 56 options for selecting and ordering one starter and one reserve player for the position.
What is probability?Probability is a field of mathematics that calculates the likelihood of an experiment occurring. We can know everything from the chance of getting heads or tails in a coin to the possibility of inaccuracy in study by using probability.
The soccer coach wants to choose one starter and one reserve player from a group of 8 players.
First, the coach can choose the starter from the 8 players in 8 ways.
After the starter has been chosen, there are 7 players left to choose from for the reserve position. Thus, the reserve player can be chosen in 7 ways.
Since the order in which the players are chosen matters, there are 8 x 7 = 56 ways to choose and order one starter and one reserve player from a group of 8 players.
Therefore, the coach has 56 possible ways to choose and order one starter and one reserve player for the position.
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f(x)=x^3+kx^2-2xk^2, find a particular point such that f'(x)=0
in the interval (-2k,0)
A particular point where f'(x) = 0 in the interval (-2k, 0) is x = -k.
To find the derivative of f(x), we need to use the power rule and get f'(x) = 3x² + 2kx - 2k². To find the critical points where f'(x) = 0, we set f'(x) equal to 0 and solve for x:
3x² + 2kx - 2k² = 0
We can then use the quadratic formula to solve for x:
x = (-2k ± √(4k² - 4(3)(-2k²))) / (2(3))
x = (-2k ± 2k) / 6
Simplifying the expression, we get two solutions: x = -k and x = 2k/3. Since we are looking for a solution in the interval (-2k, 0), the only solution that satisfies this condition is x = -k. Therefore, a particular point where f'(x) = 0 in the interval (-2k, 0) is x = -k.
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Ekipler e Ödevler (19) Using Euclidean algorithm, find the multiplicative inverses of 41 and 43 in Z/60Z. How many elements does (Z/60Z)* contain?
(Z/60Z)* contains 128 elements.
To find the multiplicative inverse of 41 in Z/60Z, we need to find an integer x such that 41x ≡ 1 (mod 60). Using the Euclidean algorithm:
60 = 1 × 41 + 19
41 = 2 × 19 + 3
19 = 6 × 3 + 1
Working backwards, we have:
1 = 19 - 6 × 3
= 19 - 6(41 - 2 × 19)
= 13 × 19 - 6 × 41
Therefore, 41 has a multiplicative inverse of 13 in Z/60Z. Similarly, we can find that 43 has a multiplicative inverse of 7 in Z/60Z.
The elements of (Z/60Z)* are the integers in the range [1, 60] that are relatively prime to 60. To count them, we can use the formula for Euler's totient function:
φ(60) = φ(2^2) × φ(3) × φ(5) = 16 × 2 × 4 = 128
Therefore, (Z/60Z)* contains 128 elements.
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WILL REWARD BRAINLIEST PLS HELP ASAP Find the total surface area.
The surface area of the rectangular prism is 88 square inches.
Given that:
Length, L = 6 inches
Width, W = 2 inches
Height, H = 4 inches
Let the prism with a length of L, a width of W, and a height of H. Then the surface area of the prism is given as
SA = 2(LW + WH + HL)
SA = 2(6 x 2 + 2 x 4 + 4 x 6)
SA = 2 (12 + 8 + 24)
SA = 2 x 44
SA = 88 square inches
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Whats the answer to my questions ?
Answer:
a scale factor of 1.5 means the shape expands by a factor of 1.5
Step-by-step explanation:
to draw your new expanded shape, list the 3 coordinates. Multiply each x an y value by 1.5. Your shape should stay the same just get larger
PLS HELP ASAP THANKS
Answer:−
2x2−8x−9
Step-by-step explanation:
subtract 2/3 minus 1/10. Simplify the answer.
a 17/30
b 23/30
c 1/7
d1/30
Answer: The correct answer is A
Step-by-step explanation: The equation is
2/3-1/10
The denominators are 3 and 10
And the lcm of 3 and 10 is 30
2(10)-1(3)/30
=(20-3)/30 =17/30
QUESTION 5 Use tables of critical points of the t-distributions to answer the following (give answers correct to 3 decimal places) Suppose that T observes a t-distribution with 24 degress of freedom Find positive t such that P(ltI> t) =0.01666_ QUESTION 6 Use tables of critical points of the t-distributions to answer the following (give answers correct to 3 decimal places). Tobserves a t-distribution with 28 degress of freedom Find the following P(T < 2.669)
The required probability is P(T < 2.669) = 0.995.
For QUESTION 5:
Since the t-distribution is symmetric, we can find the desired t-value by looking up the critical value at the upper tail probability of 0.01666/2 = 0.008333 in a t-table with 24 degrees of freedom.
Looking at the t-table, we can see that the closest probability value to 0.008333 is 0.0082, which corresponds to a t-value of 2.492.
Therefore, the positive t-value such that P(T > t) = 0.01666_ is approximately 2.492.
For QUESTION 6:
We need to find the probability that T is less than 2.669, given that T follows a t-distribution with 28 degrees of freedom.
Using a t-table, we can find that the closest probability value to 2.669 is 0.995, which corresponds to a t-value of 2.048.
Therefore, the required probability is P(T < 2.669) = 0.995.
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Use a graphing calculator to solve this:
The solution to the system of equations is given as follows:
(-1, 0.5).
How to solve the system of equations?The system of equations in the context of this problem is defined as follows:
y = -0.5x.y = 0.75x + 1.25.At the solution, the two systems have the same x-coordinates and y-coordinates, hence the value of x of the solution is obtained as follows:
-0.5x = 0.75x + 1.25.
-1.25x = 1.25
1.25x = -1.25
x = -1.25/1.25
x = -1.
Then the y-coordinate of the solution is given as follows:
y = -0.5(-1)
y = 0.5.
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In 1979 topical storm Claudette produced torrential rains when it hit Texas. The highest one-day total was reported in Alvin, Texas where a record breaking 42 inches of rain fell in a single day. This remains the 24 hour record for any location in the United States. A rectangular region R of a National Weather Service isohyet map has been subdivided into grid areas, each 5 miles by 5 miles. The isohyets show levels of rainfall in inches within the 3 day period July 24-27, 1979. If the accumulated rain water somehow didn't flow away and formed a watery surface in the region R, isohyets will be the level sets of that surface.
An explanation of how isohyets relate to Tropical Storm Claudette in 1979 and the formation of a watery surface in region R.
In 1979, Tropical Storm Claudette produced torrential rains when it hit Texas, with the highest one-day total reported in Alvin, Texas, where a record-breaking 42 inches of rain fell in a single day. This remains the 24-hour record for any location in the United States.
On a National Weather Service isohyet map, a rectangular region R has been subdivided into grid areas, each measuring 5 miles by 5 miles. The isohyets show levels of rainfall in inches within the 3-day period of July 24-27, 1979.
If the accumulated rainwater somehow didn't flow away and formed a watery surface in region R, the isohyets would be the level sets of that surface. Isohyets are contour lines that connect points of equal precipitation, and they help visualize the distribution of rainfall over a specific area. In this case, the isohyets would represent the depth of the watery surface at different points within region R, with each contour line connecting points with the same depth of accumulated rainfall.
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Use truth tables to determine whether the following pairs of symbolized statements are logically equivalent, contradictory, consistent, or inconsistent. First, determine whether the pairs of propositions are logically equivalent or contradictory; then, if these relations do not apply, determine if they are consistent or inconsistent.
â¼D ⨠B â¼ (D ·â¼B)
We can see that there are two combinations (D=T, B=F and D=F, B=T) for which both statements are true. Therefore, the given statements are consistent.
The statement given is:
¬D ∨ B ≡ ¬(D ∧ ¬B)
To show whether the given statements are logically equivalent, we can create a truth table and check if the two statements have the same truth values for all possible combinations of the propositions.
Let's start with the truth table for the left-hand side of the given statement:
D B ¬D ∨ B
----------------------
T T T
T F T
F T T
F F F
Next, let's create the truth table for the right-hand side of the given statement:
D B D ∧ ¬B ¬(D ∧ ¬B)
----------------------------------
T T F T
T F T F
F T F T
F F F T
Comparing the truth tables for both sides of the statement, we can see that they have different truth values for some combinations of D and B. Therefore, the given statements are not logically equivalent.
To determine if the given statements are contradictory or consistent, we can check if there is any combination of D and B for which both statements are true (consistent) or if there is no combination for which both statements are true (contradictory).
From the truth tables, we can see that there are two combinations (D=T, B=F and D=F, B=T) for which both statements are true. Therefore, the given statements are consistent.
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NOTE: Biweekly pay periods are paid every two weeks or 26 times per
year (52 weeks in a year divided by 2 or every 2 weeks)
Questions:
What is Shawn's net monthly income?
How much should Shawn spend in rent
based on the guidelines?
How much should Shawn spend in food
based on the guidelines?
How much should Shawn spend in
savings based on the guidelines?
How much should Shawn spend in
clothes based on the guidelines?
How much should Shawn spend in
transportation based on the guidelines?
Shawn's monthly income is $3120.
Given that, Shawn biweekly income is $1560,
Since he earns $1560 in 2 weeks,
so, in 4 weeks = 1560 / 2 × 4 = $3120
Hence, his monthly income is $3120.
Now,
Spending on rent =
30% of $3120 = $936
On Food =
20% of $3120 = $624
On saving =
10% of $3120 = $312
On clothes =
5% of $3120 = $156
On transportation =
11% of $3120 = $343.2
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Rearrange the equation so m is the independent variable
-2m-5n=7m-3n
The equation rearranged so that m is the independent variable is n = (9/11)m
To rearrange the equation -2m - 5n = 7m - 3n so that m is the independent variable, we need to isolate the term that contains m on one side of the equation. We can do this by adding 2m to both sides and then subtracting 3n from both sides. This gives us:
-2m - 5n + 2m = 7m - 3n + 2m - 3n
-5n = 9m - 6n
Now, we can further isolate the term containing m by subtracting 6n from both sides and then dividing both sides by 9:
-5n - 6n = 9m - 6n - 6n
-11n = 9m - 12n
-11n + 12n = 9m
n = (9/11)m
Therefore, the equation rearranged so that m is the independent variable is:
n = (9/11)m
This equation expresses n in terms of m, where m is the independent variable, and n depends on m. We can use this equation to determine the value of n for a given value of m.
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14. Divide (x4 - 5x² + 2x-8) + (x+2)
Answer: Dividing (x⁴ - 5x² + 2x - 8) by (x + 2) using polynomial long division:
x³ - 2x² - x + 4
________________________
x + 2 | x⁴ - 5x² + 2x - 8
| x⁴ + 2x³
| _____________
-2x³ + 2x²
-2x³ - 4x²
_____________
6x² + 2x
6x² + 12x
_____________
-10x - 8
Therefore, the quotient is x³ - 2x² - x + 4 and the remainder is -10x - 8.
Step-by-step explanation:
Angle 6 is 60°.
What is the
measure of 42?
m42 = [?]°
Answer in degrees.
1/2 = [?]°
8/7
4/3
5/6=60°
Step-by-step explanation:
the intersection angles between a line and 2 parallel lines are the same for each parallel line (otherwise they would not be parallel).
and the intersection angles on one side of a line are the same as in the other side - just left-right mirrored.
so,
angle 2 = angle 4 = angle 6 = angle 8 = 60°
In exercises 43 through 46, solve the given separable initial value problem.
43. Dy/dx = -2y; y = 3 when x = 0
44. Dy/dx = xy; y = 1 when x = 0
45. Dy/dx = e^(x+y); y = 0 when x = 0 46, dy/dx = √(y/x') y = 1 when x =1
The initial value of the given problems are [tex]y = 3e^{(-2x)}, y = e^{(x^{2/2)}}, y(x) = ln|e^x - 1| and y(x) = (2/3)(x^{(3/2)} + 7)^{2/3}.[/tex]
The given differential equation is dy/dx = -2y; y = 3 when x = 0.
Here,
dy/dx = -2y
dy/y = -2dx
Integrating both sides
ln|y| = -2x + C
here C is the constant of integration.
Now to solve for C, the initial condition y = 3 when x = 0:
ln|3| = -2(0) + C
C = ln|3|
Then, the solution to the differential equation
ln|y| = -2x + ln|3|
ln|y/3| = -2x
[tex]y/3 = e^{(-2x)}[/tex]
[tex]y = 3e^{(-2x)}[/tex]
The given differential equation is dy/dx = xy; y = 1 when x = 0.
Similarly the other questions can be done by the same method,
dy/y = x dx
Integrating both sides
[tex]ln|y| = (x^2)/2 + C[/tex]
here C is the constant of integration.
To solve for C, the initial condition y = 1 when x = 0:
[tex]ln|1| = (0^2)/2 + C[/tex]
C = 0
The n, the solution to the differential equation
[tex]ln|y| = (x^2)/2[/tex]
[tex]|y| = e^(x^2/2)[/tex]
[tex]y = ±e^{(x^2/2)}[/tex]
Since y(0) = 1, we have:
[tex]y = e^{(x^{2/2})}[/tex]
For the next question
[tex]dy/dx = e^{(x+y)}[/tex]; y = 0 when x = 0
[tex]dy/e^{y} = e^x dx[/tex]
Integrating both sides
[tex]ln|e^y| + C_1= e^x + C_2[/tex]
here C_1 and C_2 are constants of integration.
[tex]y(x) = ln|C_3e^x - 1|[/tex]
Here C_3 is a constant of integration.
Utilizing the initial condition y(0) = 0:
[tex]y(x) = ln|e^x - 1|[/tex]
Now,
[tex]dy/dx = \sqrt{(y/x')};[/tex] y(1) = 1
[tex]sqrt{(y)} dy= sqrt{(x')} dxdxdxdx[/tex]
Integrating both sides gives:
[tex](2/3)y^{(3/2)} + C_4= (2/3)x^{(3/2)} + C_5[/tex]
here C_4 and C_5 are constants of integration.
[tex]y(x) = (2/3)(x^{(3/2)} + C_6)^{2/3}[/tex]
here C_6 is a constant of integration.
Utilizing the initial condition y(1) = 1
[tex]y(x) = (2/3)(x^{(3/2)} + 7)^{2/3}[/tex]
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Assume that adults have 10 scores that are normally distributed with a man of 101.1 and a standard deviation of 17. Find the probablity that a randomly selected adult has an IQ greater than 134.4
The probability that a randomly selected adult from this group has an IQ greater than 134.4 is ?
The probability that a randomly selected adult has an IQ greater than 134.4 is 0.025.
We have,
To solve this problem, we need to standardize the IQ score using the
z-score formula:
z = (x - μ) / σ
where x is the IQ score, μ is the mean, and σ is the standard deviation.
Substituting the values we have:
z = (134.4 - 101.1) / 17
z = 1.96
We can then use a standard normal distribution table or a calculator to find the probability of a z-score being greater than 1.96.
Using a standard normal distribution table, we find that the probability of a z-score being greater than 1.96 is approximately 0.025.
Therefore,
The probability that a randomly selected adult has an IQ greater than 134.4 is 0.025.
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the graphs show the market labor supply (ls) curve for the country of littleland. the two graphs show different shifts in the ls curve, from ls1 to ls2. assume there is no change in the labor demand curve. for each statement, select the graph that illustrates the appropriate shift.
Graph 1 illustrates a shift in the labor supply (LS) curve from LS1 to LS2 that represents an increase in labor supply in the country of Littleland.
In Graph 1, the LS2 curve is positioned to the right of the LS1 curve, indicating an increase in labor supply. This shift could occur due to various factors such as an increase in population, an increase in the number of people entering the labor force, or a decrease in the retirement age. As a result, there is an upward shift in the quantity of labor supplied at each wage level, indicating that more people are willing and able to work at any given wage rate.
Therefore, Graph 1 illustrates an increase in labor supply in the country of Littleland
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Please just do question C(ii).
(a) Consider p(z) = z^3 + 2z^2 – 6z +1 when z € C. Prove that if zo is a root of p(z) then zo is also a root. (b) Prove a generalization of (a): Theorem: For any polynomial with real coefficients, if zo € C is a root, then zo is also a root. (c) Consider g(z) = z^2 – 2z: (i) Find the roots of g(z) and show that they satisfy the conclusion of the theorem in (b).
(ii) Explain why the theorem in (b) does not apply to g(z).
For part (c)(ii), we need to explain why the theorem in (b) does not apply to g(z).
The theorem in (b) states that for any polynomial with real coefficients, if zo € C is a root, then zo is also a root. However, g(z) = z^2 - 2z does not have real coefficients, as the coefficient of the z term is -2, which is not a real number.
Therefore, we cannot apply the theorem in (b) to g(z) since it does not satisfy the condition of having real coefficients. However, we can still find the roots of g(z) and show that they satisfy the conclusion of the theorem in (b) if we consider g(z) as a polynomial with complex coefficients.
To find the roots of g(z), we set g(z) equal to zero and solve for z:
z^2 - 2z = 0
z(z - 2) = 0
So the roots of g(z) are z = 0 and z = 2.
If we consider g(z) as a polynomial with complex coefficients, then we can apply the theorem in (b) and conclude that if z = 0 or z = 2 is a root of g(z), then it is also a root of g(z) with real coefficients. However, we cannot apply the theorem in (b) to g(z) directly since it does not have real coefficients.
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rectangle wxyz is dilated by a scale factor of 3 3 to form rectangle w'x'y'z'. side z'w' measures 99 99. what is the measure of side zw
The measure of side ZW in rectangle WXYZ is 33.
It is mentioned that rectangle WXYZ is dilated by a scale factor of 3 to form rectangle W'X'Y'Z'. Side Z'W' measures 99. We need to find the measure of side ZW.
To find the measure of side ZW, we need to use the scale factor. Since the rectangle was dilated by a scale factor of 3, we can divide the measure of side Z'W' by the scale factor to find the measure of side ZW.
Identify the scale factor, which is 3.
Identify the measure of side Z'W', which is 99.
Divide the measure of side Z'W' by the scale factor: 99 ÷ 3 = 33.
So, the measure of side ZW in rectangle WXYZ is 33.
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Is the following graph informative or manipulative? Explain your reasoning
Answer:
Informative!
Step-by-step explanation:
Show that the average degree of a vertex in the triangulation is strictly less than 6
In any planar triangulation, there are always fewer edges than three times the number of vertices, so the average degree of a vertex must be less than 6.
Let V stand for the triangulation's collection of vertices and E for its set of edges. As each edge adds two degrees to the total degree count, the triangulation's total degree count is equal to twice the number of edges. Thus,
Σdeg(v) = 2|E| where deg(v) is the degree of vertex v and |E| is the number of edges in the triangulation.
|E| = (3/2) |T|, number of triangles in the triangulation is |T| .
Furthermore, we know that the sum of the degrees of the vertices is equal to 3 times the number of triangles, since each triangle contributes 3 to the total degree count:
Σdeg(v) = 3|T|
Putting these equations together, we have:
Σdeg(v) = 3|T| = (3/2) * 2|E| = 3|E|
Dividing both sides by the number of vertices, n, we obtain:
(1/n) Σdeg(v) = 3/ n * |E|
Thus, the average degree of a vertex in the triangulation is strictly less than 6, since the average degree of a vertex in the corresponding graph is at most 2 (since each triangle is incident to at most 3 other triangles).
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What is radical form (5x)½
Answer:
[tex] {(5x)}^{ \frac{1}{2} } = \sqrt{5x} [/tex]
The distance of a swinging pendulum from its resting position is given by the function d(t)=
5.5cos(8t), where the distance is in inches and the time is in seconds. Once released, how
long will it take the pendulum to reach its resting position? Round your answer to the near-
est hundredth.
It will take the pendulum approximately 0.20 seconds to reach its resting position.
We have,
The resting position of the pendulum is when d(t) = 0.
So we need to solve the equation:
5.5cos(8t) = 0
We know that cos(0) = 1 and that cos(π) = -1, and that the cosine function has a period of 2π.
Therefore, the first time the pendulum will reach its resting position is at
t = 0, and then it will reach its resting position again at t = π/8.
However, we are interested in the time it takes for the pendulum to go from its starting position to its resting position, which is half of its period.
So the time it takes for the pendulum to reach its resting position is:
t = π/8 / 2
t = π/16
Using a calculator, we can approximate this value to the nearest hundredth:
t = 0.20 seconds
Therefore,
It will take the pendulum approximately 0.20 seconds to reach its resting position.
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tan(0)/ csc (0)sec (0)
Write this expression in trigonometric form
The simplified trigonometric expression is given as follows:
tan(x)/[csc(x)sec(x)] = sin²(x).
How to simplify the trigonometric expression?The trigonometric expression in the context of this problem is defined as follows:
tan(x)/[csc(x)sec(x)].
The definitions of tangent, cosecant and secant are given as follows:
tan(x) = sin(x)/cos(x).csc(x) = 1/sin(x).sec(x) = 1/cos(x).Hence the denominator of the simplified expression is given as follows:
csc(x)sec(x) = 1/sin(x) x 1/cos(x) = 1/(sin(x)cos(x)).
When two fractions are divided, we multiply the numerator by the inverse of the denominator, hence:
tan(x)/[csc(x)sec(x)] = sin(x)/cos(x) x sin(x) x cos(x) = sin²(x).
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