I just need the bonus points for other assignment, it's easy.

Answer:5/5x-15/x

Step-by-step explanation:

Answer: your answer should be 3x^2 + 10x -75 / 5x.

Step-by-step explanation:

1. Combine multiplied terms into a single fraction

2. Find common denominator

3. Combine fractions with common denominator

4.  Multiply the numbers

5. Re-order terms so constants are on the left

6. Combine exponents

7. Multiply the numbers

8. Rearrange terms

therefore hopefully giving you the answer of 3x^2 + 10x -75 / 5x.

Answer:

The first option

Step-by-step explanation:

Im smart

If many random samples of this size were taken and intervals constructed, 90% of them would contain the true population mean. In repeated sampling, about 90% of the constructed confidence intervals will capture the true population mean difference. The correct answer is C.

When we construct a confidence interval, it is important to understand its interpretation. In this case, the correct answer (Oc) states that if we were to take many random samples of the same size and construct confidence intervals for each sample, approximately 90% of these intervals would contain the true population mean difference.

This interpretation is based on the concept of sampling variability. Due to random sampling, different samples from the same population will yield slightly different sample means.

The confidence interval accounts for this variability by providing a range of values within which we can reasonably expect the true population mean difference to fall a certain percentage of the time.

In the given scenario, when constructing a 90% confidence interval for the paired difference, it means that 90% of the intervals we construct from repeated samples will successfully capture the true population mean difference, while 10% of the intervals may not contain the true value.

It's important to note that this interpretation does not imply a probability or chance for an individual interval to capture the true population mean. Once the interval is constructed, it either does or does not contain the true value. The confidence level refers to the long-term behavior of the intervals when repeated sampling is considered.

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Answer:

D. 29 I just know the awnser sorry

To find the value of f(−2), we substitute −2 for x in the function f(x):

f(−2) = 4(-2)^2 − 3(-2) + 7

= 4(4) − 3(2) + 7

= 16 − 6 + 7

= 11

Therefore, f(−2) = 11.

An isosceles acute triangle is a triangle with at least two equal angles and three angles that are all less than 90 degrees. 50°, 50°, and 80° are three examples of the angles that make up an isosceles acute triangle.

Every triangle has 180 degrees. An isosceles triangle has one vertex angle and two congruent base angles. Thus the vertex angle is 38 and the base angle is 71 and their sum is 109.

The triangles 45/45/90 are always isosceles. This indicates that two of the triangle's legs are congruent. Which two sides of the figure are congruent is shown. The Pythagorean Theorem can be used to determine the hypotenuse's length from this point.

This is an isosceles right triangle. The other triangle is named a 30-60-90 triangle, where the angles in the triangle are 30 degrees, 60 degrees, and 90 degrees.

Therefore,

An isosceles acute triangle is a triangle with at least two equal angles and three angles that are all less than 90 degrees. 50°, 50°, and 80° are three examples of the angles that make up an isosceles acute triangle.

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The probability that in 20 tosses of a fair six-sided die, a five will be obtained at least 5 times is approximately 0.3289 or 32.89%.

The probability of getting a 5 on any single toss of a fair six-sided die is 1/6. Since the tosses are independent, the number of 5's obtained in 20 tosses follows a binomial distribution with parameters n = 20 and p = 1/6.

We want to find the probability that a five will be obtained at least 5 times in 20 tosses. This is equivalent to finding the probability of getting 5, 6, 7, ..., or 20 fives in 20 tosses. We can use the binomial probability mass function to calculate these probabilities and then add them up.

Using a computer or a binomial probability distribution table, we can find the individual probabilities of getting k fives in 20 tosses for k = 5, 6, 7, ..., 20. We can then add up these probabilities to get the total probability of getting at least 5 fives in 20 tosses:

P(at least 5 fives) = P(5 fives) + P(6 fives) + ... + P(20 fives)

Using a computer or a binomial probability distribution table, we find that:

P(5 fives) ≈ 0.2029

P(6 fives) ≈ 0.0883

P(7 fives) ≈ 0.0270

P(8 fives) ≈ 0.0069

P(9 fives) ≈ 0.0015

P(10 fives) ≈ 0.0003

P(11 fives) ≈ 0.0001

P(12 fives) ≈ 0.0000

P(13 fives) ≈ 0.0000

P(14 fives) ≈ 0.0000

P(15 fives) ≈ 0.0000

P(16 fives) ≈ 0.0000

P(17 fives) ≈ 0.0000

P(18 fives) ≈ 0.0000

P(19 fives) ≈ 0.0000

P(20 fives) ≈ 0.0000

Summing up these probabilities, we get:

P(at least 5 fives) ≈ 0.3289

Therefore, the probability that in 20 tosses of a fair six-sided die, a five will be obtained at least 5 times is approximately 0.3289 or 32.89%.

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Answer: won’t it be 50?

Step-by-step explanation:

Answer:

54

You are only rounding the .285 part. If it is below 0.5, it rounds to 54. If it is obove 0.5, it would round to 55. Bht the answer is 54.

The missing angles and their reasons are as follows;

a) x = 65°; Opposite angles

b)  y = 71°; Alternate angles

c) z = 44°; sum of angles in a triangle

a) In triangles or line geometry, we know that the angles that are directly opposite to each other are known as opposite angles. They are also referred to as as vertical angles or even vertically opposite angles in some cases and are always congruent to each other.

We see that x is an opposite angle to 65 and so;

x = 65°

b) Alternate angles are gotten on the opposite sides of a transversal line they always have the same size. In this problem, we see that y is an alternate angle to 71° and as such;

y = 71°

c) The sum of angles in a triangle is 180° and as such;

x + y + z = 180°

Thus;

65 + 71 + z = 180

z = 180 - 136

z = 44°

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Answer:

Step-by-step explanation:

0.7 cubic kilometers

V= lwh

V=(.5)(2)(.7)

Answer:

b

Step-by-step explanation:

that th only one with 7 rows

Answer:

The correct asnwer is A. not B.

Step-by-step explanation:

A. 8 + 15 = 119; r = 13 rows.

Answer:

The answer would be 5/6.

Step-by-step explanation:

The probability of the ball landing on a red slot on the next spin is still 18/38 or approximately 0.4737 or 47.37%.

The probability of the ball landing on a red slot on a single spin of a standard roulette wheel is 18/38 or approximately 0.4737 or 47.37%. This is because there are 18 red slots out of a total of 38 slots on the wheel.

The outcome of the previous 210 spins has no effect on the probability of the ball landing on a red slot on the next spin. Each spin is an independent event, and the probability of the ball landing on a red slot remains the same for each spin.

Therefore, even though the ball has landed on a red slot for the past 210 spins, the probability of it landing on a red slot on the next spin is still 18/38 or approximately 0.4737 or 47.37%.

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Answer:

78/90

Step-by-step explanation:

p(BR)=6/10*4/9=24/90

p(RB)=4/10*6/9=24/90

p(BB)=6/10*5/9=30/90

add these together, you get 78/90

A triangle with two congruent sides(if they have the same shape and size) is not always a 45-45-90 triangle. So the given statement is false.

A 45-45-90 triangle is a special type of right triangle where the two legs (the sides adjacent to the right angle) are congruent, and the hypotenuse (the side opposite the right angle) is the square root of 2 times the length of the legs.

However, there are other triangles with two congruent sides that are not 45-45-90 triangles. For example, an isosceles triangle has two congruent sides but does not necessarily have a 45-degree angle. The angles of an isosceles triangle can vary depending on the specific lengths of the sides.

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Answer:1.95

Step-by-step explanation:

When you write your measurement as the mean ± standard deviation, it means that you are displaying how far the data is spread out from the mean value. A normal distribution is one that is symmetrical and bell-shaped, where most of the data lies near the mean value.

When you write your measurement as the mean ± standard deviation, it means that you are displaying how far the data is spread out from the mean value. In statistics, the standard deviation is a measure of the amount of variation or dispersion of a set of values. When you add the standard deviation to the mean and also subtract the standard deviation from the mean, you get the upper and lower bounds of the range that contains about 68% of the data. This range is called one standard deviation.The value of the standard deviation indicates how much the data varies around the mean. If the standard deviation is high, then the data is widely spread out and vice versa. Additionally, when you write a measurement as the mean ± standard deviation, it is assumed that the data is normally distributed. A normal distribution is one that is symmetrical and bell-shaped, where most of the data lies near the mean value.

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Ameen has been eating the candy for 27 days and now has 82 pieces left

An equation is an expression that uses mathematical operations to show the relationship between numbers and variables. Types of equations are linear, quadratic, cubic and so on.

Let x represent the number of days he had been eating candy.

Ameen had 300 pieces of candy. He was allowed to eat 8 pieces of candy each day. He has 82 left. This can be represented by:

300 - 8x = 82

8x = 300 - 82

8x = 218

x = 27.25

He has been eating the candy for 27 days

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Answer:

$26.31

Step-by-step explanation:

Since 3 is half of 6, 3 pairs of shoes would cost half the price.

So...

52.62/2=$26.31

Answer:

x = 11/4

Step-by-step explanation:

-8(2x+1)+=6x-12 first do the multiplying

-16x - 8 = 6x - 12 add like terms

4 = 22x divide by 22

x = 11/2

Steps to solve:

-8(2x + 1) = 6x - 12

~Distribute left side

-16x - 8 = 6x - 12

~Add 8 to both sides

-16x = 6x - 4

~Subtract 6 to both sides

-22x = -4

~Divide -22 to both sides

x = 22/4 or z = 11/2

Best of Luck!

Answer:

tan A = 3 / 4

Step-by-step explanation:

since sin = 3 / 5 and cos = 4 / 5, tan A = 3 / 4

Step-by-step explanation:

please mark me as brainlest

The slope of the tangent line to the polar curve represented by the equation r = 8cos(θ) at the point specified by θ = 77° is -√3.

To find the slope of the tangent line to the polar curve, we need to determine the derivative of r with respect to θ. The given polar equation r = 8cos(θ) can be rewritten in terms of Cartesian coordinates as x = 8cos(θ) and y = 8sin(θ). To find the derivative of y with respect to x, we differentiate both sides of the equation x = 8cos(θ) with respect to θ using the chain rule. The derivative of x with respect to θ is dx/dθ = -8sin(θ), and the derivative of θ with respect to x is dθ/dx = 1/(dx/dθ) = 1/(-8sin(θ)).

Next, we find the derivative of y with respect to θ, which is dy/dθ = 8cos(θ). Finally, we can calculate the slope of the tangent line at θ = 77° by substituting this value into the derivatives we found. The slope of the tangent line is dy/dx = (dy/dθ)/(dx/dθ) = (8cos(θ))/(-8sin(θ)) = -cos(θ)/sin(θ). At θ = 77°, the slope is -√3, which represents the slope of the tangent line to the polar curve at that point.  

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The volume of the frustum obtained as the difference between the volume of the large cone and the volume of the small cone, whereby the volume of the large cone is considered as a composite figure is about 1525 mm³

A composite figure is a figure comprising of two or more regular figures.

The dimensions of the large cone and the small cone, obtained from a similar question on the internet are;

Base radius of the large cone = 6 mm

Height of the large cone = 42 mm

Base radius of the small cone = 2 mm

Height of the frustum = 28 mm

The volume of the large cone = (1/3) × π × 6² × 42

Volume of the smaller cone = (1/3) × π × 2² × (42 - 28)

Volume of the frustum = Volume of the large cone - Volume of the small cone

Volume of the frustum = (1/3) × π × 6² × 42 - (1/3) × π × 2² × (42 - 28)

Therefore; V = (1/3) × π × (6² × 42 - 2² × (42 - 28)) ≈ 1525

The volume of the frustum to the nearest integer is about 1525 mm³

Please find attached the possible cross section of the larger cone created with MS Word

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Answer:The original stock price was $83.60 and it went up by 15.35 so it became $98.95 and then 4.75% of this was then $4.70 so $98.95-4.70=$94.25 so even with the drop in value the stock price still went up by $10.65 so gained significantly in value.

Step-by-step explanation:

Answer: I believe it means that there is no solution

Step-by-step explanation: I believe this because we are given: 5 = 0. In linear graphs when lines are equal to 0 there is no equation or solution

Thomas is 49 years old.

What is equation?

Two expressions joined by an equal sign form a mathematical statement known as an equation. An equation is, for instance, 3x - 5 = 16. We can solve this equation and determine that the value of the variable x is 7.

Given:

Huilan is 11 years older than Thomas.

The sum of their ages is 109.

We have to find the Thomas's age in years.

Let x be the Thomas age.

Then the age of Huilan is x + 11.

As the sum of their ages is 109.

⇒ x + (x + 11) = 109

         2x + 11 = 109

               2x = 98

                 x = 49

Hence, Thomas is 49 years old.

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When events A and B are mutually exclusive or disjoint, the probability of either event A or event B occurring is equal to the sum of their individual probabilities, represented by P(A or B) = P(A) + P(B).

If it is impossible for events A and B to occur simultaneously, the events are said to be mutually exclusive or disjoint.

For mutually exclusive events, the probability of either event A or event B occurring is equal to the sum of their individual probabilities.

Therefore, for mutually exclusive events A and B, the probability of A or B occurring, denoted as P(A or B), is given by:

P(A or B) = P(A) + P(B)

This is because when events A and B are mutually exclusive, they cannot occur together.

Thus, the probability of either event A or event B happening is simply the sum of their individual probabilities.

It is important to note that this statement holds true only for mutually exclusive events.

If events A and B are dependent or not mutually exclusive, we need to consider other factors such as their joint probability and the probability of their intersection.

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Answer:

is it from the text book

Step-by-step explanation:

Answer:

y = 28.1739x² + 45.6478x + 617.4879 ;

$3891.36

Step-by-step explanation:

Given the data above :

We can employ an online quadratic model calculator to create a quadratic model of the data:

Year(t) ____0 ____1 ____2 ____3 ____4 ____5 (P)-603.46_695.39_871.96_972.35_1224.53_1571.52

The quadratic function obtained is :

y = 28.1739x² + 45.6478x + 617.4879

Using the model ; the price of gold in 2016 will be :

X = 2016 = 10 years (2016 - 2006)

y = 28.1739(10)^2 + 45.6478(10) + 617.4879 = 3891.3559

Hence, the predicted price of gold in 2016 using the model will be $3891.36

Answer:

Matched pairs design

Step-by-step explanation:

Looking at the options;

-It's not a completely randomized design because a randomized design will assign all individuals to a group which in this case it doesn't.

- It's not a randomized block design because randomized block design will group the subjects in question into 2 or more blocks which have a common characteristic and will then randomly assign subjects in each of the blocks.

-It's a matched pair because every individual/subject undergoes measurements both before and after being treated with the drugs.

Thus, the correct option is matched pairs design.