PLEASE!!!!!!!!!!A cyclist rides her bike at this speed of 10 miles per hour.What is the speed in kilometers per hour? how many kilometers will the cyclist travel in 5 hours? (In your computations, assume that 1 mile is equal to 1.6 kilometers. do not round your answers)

Answer:

4x( x^3 +3x+2)

Step-by-step explanation:

4x^4 + 12x^2 + 8x

Factor out 4x

4x( x^3 +3x+2)

Answer:

13.9 ft

Step-by-step explanation:

use Pythagoras theorem

surface²=7²+12²

surface²=193

surface=√193=13.89 ft≈13.9 ft

please mark brainliest

The answers that describe the quadrilateral DEFG area rectangle and parallelogram.

The correct answer choice is option A and B.

A quadrilateral is a parallelogram, which has opposite sides that are congruent and parallel.

Quadrilateral DEFG

if line DE || FG,

line EF // GD,

DF = EG and

diagonals DF and EG are perpendicular,

then, the quadrilateral is a parallelogram

Hence, the quadrilateral DEFG is a rectangle and parallelogram.

Read more on quadrilaterals:

https://brainly.com/question/23935806

#SPJ1

it may be permissible to proceed with a hypothesis test even if the assumption of random participant selection is violated, under the conditions of known and accounted for non-random selection or random assignment to treatment groups

Random participant selection is an important assumption in hypothesis testing, as it helps ensure the generalizability of the results to the target population. However, in some situations, it may be impractical or impossible to achieve perfect random selection. In such cases, there are a few conditions under which it may still be permissible to proceed with a hypothesis test despite the violation of this assumption:

Non-random selection is known and accounted for: If the non-random selection process is well-documented and understood, researchers can adjust their analysis or statistical methods to account for potential biases introduced by the non-random selection.

Random assignment to treatment groups: Even if participants are not randomly selected, random assignment to different treatment groups can help mitigate the impact of non-random selection. By randomly assigning participants to treatment groups, the effects of non-random selection are distributed evenly across the groups, allowing for valid comparisons and hypothesis testing.

Learn more about participant selection here:

https://brainly.com/question/14862285

#SPJ11

you have the following inequality:

3 + 4x > -5

in order to solve for x, proceed as follow:

3 + 4x > -5 subtract 3 both sides

4x > - 5 - 3

4x > -8 divide by 4 both sides

x > -8/4

x > -2

Hence, the solution to the given inequality is x > -2

The point of knowing whether a function is a linear transformation is that it simplifies the process of solving equations and makes it easier to understand the behavior of the function.

A linear transformation is a function that preserves the operations of addition and scalar multiplication, which means that it satisfies two key properties: linearity and homogeneity. If a function satisfies these properties, then it is a linear transformation. Linear transformations have several important properties that make them useful in linear algebra, including the ability to compose functions, invertibility, and the preservation of linear independence.

Knowing that a function is a linear transformation allows for the use of powerful tools such as matrix multiplication and matrix inversion, which are fundamental to many applications in linear algebra, such as solving systems of linear equations and finding eigenvalues and eigenvectors. Additionally, it provides a framework for understanding geometric transformations, such as rotations and reflections, in terms of linear algebra. Overall, understanding linear transformations is essential for effectively working with vectors, matrices, and systems of linear equations.

To learn more about matrix multiplication click here, brainly.com/question/13591897

#SPJ11

Answer:

x=80

Step-by-step explanation:

my god this should be easy and I thought I was a bit slow

Therefore, the left Riemann sum approximation of the area under the curve y = 2 cos^(-1)(x) on the interval [0, 1] with five subintervals is approximately 1.35691.

To approximate the area under the curve y = 2 cos^(-1)(x) on the interval [0, 1] using the left Riemann sum with five subintervals, we divide the interval into five equal subintervals of length Δx = (1 - 0)/5 = 1/5 = 0.2.

Using the left Riemann sum, we evaluate the function at the left endpoint of each subinterval and sum the areas of the corresponding rectangles.

For each subinterval, the left endpoint is xi = 0 + (i-1)Δx, where i ranges from 1 to 5.

The area of each rectangle is given by Δx * f(xi), where f(x) = 2 cos^(-1)(x).

Approximating the area under the curve using the left Riemann sum:

Area ≈ Δx * [f(x1) + f(x2) + f(x3) + f(x4) + f(x5)]

Substituting the values:

Area ≈ (0.2) * [f(0) + f(0.2) + f(0.4) + f(0.6) + f(0.8)]

Calculating the values of f(x) for each x:

f(0) = 2 cos^(-1)(0) = 2 * (π/2) = π

f(0.2) = 2 cos^(-1)(0.2) ≈ 2 * (1.36944) ≈ 2.73888

f(0.4) = 2 cos^(-1)(0.4) ≈ 2 * (0.92730) ≈ 1.85460

f(0.6) = 2 cos^(-1)(0.6) ≈ 2 * (0.64350) ≈ 1.28700

f(0.8) = 2 cos^(-1)(0.8) ≈ 2 * (0.45203) ≈ 0.90406

Substituting these values back into the equation:

Area ≈ (0.2) * [π + 2.73888 + 1.85460 + 1.28700 + 0.90406]

Calculating the expression:

Area ≈ 0.2 * 6.78454 ≈ 1.35691

To know more about Riemann sum,

https://brainly.com/question/30298481

#SPJ11

The statement that would help to show that ∠2 ≅ ∠4 include the following: B) ∠1 is supplementary to ∠2 and ∠1 is supplementary to ∠4

What is a supplementary angle?

In Mathematics and Geometry, a supplementary angle simply refers to two (2) angles or arc whose sum is equal to 180 degrees.

Additionally, the sum of all of the angles on a straight line is always equal to 180 degrees. In this scenario, we can reasonably infer and logically deduce that the sum of the given angles are supplementary angles:

m∠1 + m∠2 = 180° (Linear pair theorem).

m∠1 + m∠4 = 180° (Linear pair theorem).

Read more on supplementary angle here: https://brainly.com/question/28908897

#SPJ1

Complete Question:

Consider the diagram of two intersecting lines and the angles that are formed.

Which statement will help to show that ∠2≅∠4?

a.)∠1 is complementary to ∠2,and ∠1 is complementary to ∠4.

b.) ∠1 is supplementary to ∠2, and∠1 is supplementary to ∠4.

c.) m∠1+m∠3=90°.

d.) ∠1 is vertical to ∠2, and ∠1 is vertical to ∠4.

Answer:

x = 1/2

Step-by-step explanation:

10x + 4 = 8x + 5

2x = 1

x = 1/2

The specific numerical solution will depend on the number of firms in the market and their behavior.

In a Stackelberg version of monopolistic competition, there is a leader firm that sets its output first, and all the other firms in the market act as followers and choose their outputs simultaneously.

Suppose there are "n" firms in the market, with the first firm denoted as the leader. Let's assume that each firm has a constant marginal cost of $10 per unit. Then, the leader firm's profit-maximizing output level can be found by solving the following problem:

max (30-Q1-Q2-...-Qn)Q1 - 10Q1

subject to Q1 >= 0

where Q1 is the output level of the leader firm, and Q2, Q3, ..., Qn are the output levels of the follower firms.

Taking the first-order condition by differentiating with respect to Q1 and setting it equal to zero, we get:

d/dQ1 [(30-Q1-Q2-...-Qn)Q1 - 10Q1] = 0

Simplifying this expression, we get:

30 - Q1 - Q2 - ... - Qn - 2Q1 = 0

Solving for Q1, we get:

Q1 = (30 - Q2 - ... - Qn)/3

This equation gives us the leader firm's profit-maximizing output level as a function of the follower firms' output levels.

Now, let's consider the follower firms' profit-maximizing output levels. Since each follower firm is a price-taker, its profit-maximizing output level can be found by equating marginal cost to market price, which is equal to the market demand curve divided by the total quantity produced by all firms in the market. Therefore, the profit-maximizing output level of the jth follower firm can be expressed as:

Qj* = (1/n) * (30 - Q1 - Q2 - ... - Qj-1 - Qj+1 - ... - Qn - 10)

where Qj* is the follower firm's profit-maximizing output level, and j = 2, 3, ..., n.

Using these expressions for the leader and follower firms' profit-maximizing output levels, we can solve for the equilibrium outputs and profits in the Stackelberg version of monopolistic competition. However, the specific numerical solution will depend on the number of firms in the market and their behavior.

To learn more about market visit:

https://brainly.com/question/13414268

#SPJ11

Answer:

21

Step-by-step explanation:

to find the number you have to add 3 to zero and then multiply by 7 to get 21 because 21 divided by 7=3 and then subtract 3 and you get zero

Answer:

7y = -9x - 12

Step-by-step explanation:

Answer:

2.25 inches

Step-by-step explanation:

Number of books: 12

Height of stack: 27 inches

27 divided by 12 = 2.25 inches

Answer:

9/4

Step-by-step explanation:

27/12 = 9/4 inch

= 2,25 inch

I would perform the ANOVA test (choice 1 of 4).

I would perform the ANOVA test (choice 1 of 4). The ANOVA test is used to test the null hypothesis that the means of all groups are equal, and if the test results in a significant p-value, it suggests that at least one of the group means is significantly different from the others.

Tukey's HSD test (choice 2 of 4) is a post-hoc test that can be used after an ANOVA test to determine which specific groups differ significantly from each other.

The Wilcoxon rank-sum test (choice 3 of 4) is a non-parametric test used to compare the medians of two independent groups.

The Wilcoxon signed-rank test (choice 4 of 4) is a non-parametric test used to compare the medians of two related groups (i.e., paired or matched samples).

Learn more about ANOVA test.

brainly.com/question/31192222

#SPJ11

Step-by-step explanation:

1500*.02*1=30

50*12*1=60

g(x)=50(12x) good

The graph of the inequality y ≥ (1/2)x - 1 and x - y > 1 is attached. Shannon's graph is correct.

An equation is an expression that shows the relationship between two or more numbers and variables. Equations can either be linear, quadratic, cubic and so on depending on the degree.

Inequalities are used for the non equal comparison of numbers and variables.

Given the inequalities:

y ≥ (1/2)x - 1     (1)

and

x - y > 1     (2)

The graph of the inequality is attached. Shannon's graph is correct.

Find out more on equation at: https://brainly.com/question/2972832

#SPJ1

To find the tallest person from the data, we need to look at the maximum value of the heights. From the data given above, we can see that the tallest person is 6.1 feet (73.2 inches).

a. To calculate the z-score for this tallest person, we can use the formula: z = (x - μ) / σ, where x is the height of the tallest person, μ is the population mean, and σ is the population standard deviation. Given that the population mean is 64 inches and the standard deviation is 2.5 inches, we have:
z = (73.2 - 64) / 2.5 = 3.68
Interpretation: The z-score of 3.68 means that the tallest person is 3.68 standard deviations above the population mean.
b. To calculate the probability that a randomly selected female is taller than the tallest person, we need to find the area under the standard normal distribution curve to the right of the z-score of 3.68. Using a standard normal distribution table or a calculator, we can find this probability to be approximately 0.0001 or 0.01%. This means that the probability of a randomly selected female being taller than the tallest person is very low.
c. Similarly, to calculate the probability that a randomly selected female is shorter than the tallest person, we need to find the area under the standard normal distribution curve to the left of the z-score of 3.68. This probability can be found by subtracting the probability in part b from 1, which gives us approximately 0.9999 or 99.99%. This means that the probability of a randomly selected female being shorter than the tallest person is very high.
d. To determine if her height is "unusual", we need to compare her z-score with a certain threshold value. One commonly used threshold value is 1.96, which corresponds to the 95% confidence level. If her z-score is beyond 1.96 (i.e., greater than or less than), then her height is considered "unusual". In this case, since her z-score is 3.68, which is much higher than 1.96, her height is definitely considered "unusual". This means that the tallest person is significantly different from the average height of the population.

To know more about probability visit:

https://brainly.com/question/31828911

#SPJ11

Answer:

The probability of rolling an odd number or a two on a six-sided die is 1/2 + 1/6 = 2/3. This means that if you roll a six-sided die 300 times, you can expect to roll an odd number or a two approximately 200 times

Step-by-step explanation:

Answer: 400 TIMES

Step-by-step explanation:

1/6 +1/2

4/6

2/3

Answer:

Step-by-step explanation:

If I found the mean, the answer would be:

3+ 4+4+4+5+6+7+23= 56

56/ 8 = 7

If I found the average value using the median, the answer would be 4.5.

In this set of data, the anomaly is 23 as it is much higher than the other numbers.

The median is more accurate because it find the more ‘central’ number and is not affected as greatly with anomalies whereas the mean is affected greatly with anomalies as it raises the value significantly.

Therefore, the median is better to work out the average in this set of data.

:)

100th digit of the pi is 7

Pi (represented by the Greek letter π) is a mathematical constant that represents the ratio of the circumference of a circle to its diameter. It is approximately equal to 3.14159,

The decimal representation of pi (π) is an infinite non-repeating sequence of digits, so there is no simple formula or algorithm to determine the value of its digits. However, you can use a computer program or online tool to calculate the digits of pi to a certain number of decimal places.

Assuming you are looking for the 100th decimal digit of pi, it is 7. This means that if you write out the first 100 digits of pi, the 100th digit is 7.

Learn more about Pi here

brainly.com/question/16277677

#SPJ4

Answer:

missing exponent is ^3

Step-by-step explanation:

Answer:

It's ^3. The missing exponent is ^3 :)

Step-by-step explanation:

      3^3

=> 3 x 3 x 3

=> 9 x 3

=> 27

An equation with 10 solutions can be any polynomial equation of degree 10 or higher, and one example is x^10 - 10x^8 + 35x^6 - 50x^4 + 25x^2 - 1 = 0.

An equation with 10 solutions can be any polynomial equation of degree 10 or higher. The number of solutions of an equation is equal to its degree, counting repeated solutions as separate. Therefore, a degree-10 polynomial equation can have up to 10 distinct solutions, while a degree-11 or higher polynomial equation can have more than 10 solutions.
To find an example of an equation with 10 solutions, we can start by constructing a polynomial equation of degree 10. One such equation is:
x^10 - 10x^8 + 35x^6 - 50x^4 + 25x^2 - 1 = 0

This equation is a degree-10 polynomial with no missing powers of x, and it has exactly 10 solutions. To see this, we can use the fact that this equation can be factored as:
(x^2 - x√2 + 1)(x^2 + x√2 + 1)(x^2 - √2)(x^2 + √2)(x^2 - 1) = 0
Each of these factors has two distinct roots, except for the last factor which has only one root (x = 1). Therefore, the equation has a total of 10 solutions, namely:
x = (1 ± √2), (± √2), (± i), (± 1)

To know more about polynomial equation  visit:-

https://brainly.com/question/25958000

#SPJ11

Answer: the numbers are 24 and 56

Answer:

8 / 5

Step-by-step explanation:

Since 2/5 gallons cover 1/4 of the deck you would have to multiply 2/5 times 4 to so how much it would take to cover the whole deck so your answer is 8/5 gallons

Solution:

Given:

An exponential function is of the form:

To get the exponential function for the relation;

Part A:

Relating this to the parameters given:

The exponential function that models the problem is;

Part B:

On the twenty-third day,

Therefore, he would have saved 4,194,304 pennies on the twenty-third day.

Answer:

first drop down is, doesn't matter. Second one is, must be the negative reciprocal of the slope of the original line. Third is, must be different from the y intercept of the original line. If the y intercepts are the same, the two lines will intersect as proven by one of the questions asked by the user.

Step-by-step explanation:

Hope this helps! :)

Answer:

4

Step-by-step explanation:

Answer:

x = -8​

Step-by-step explanation:

-X= 8​

Multiply by -1

-X*-1= 8*-1

x = -8​

Answer:

x = -8

Step-by-step explanation:

Multiply both side of the equation by -1

-x(-1) = 8(-1)

On the x side, the negatives cancel each other out, making x positive.

On the 8 side, the negative makes the 8 into -8.

x = -8

(essentially, switch the negative/positive signs)