this is the question I need help with ​

Answer:

4.5 units

Step-by-step explanation:

To get the distance we need the coordinates of the points

A is ( 3,1)

B is (-1,-1)

Let A be (x1,y1) and B be (x2,y2)

So applying the formula, we have the distance as;

D = √(-1-3)^2 + (-1-1)^2

D = √(16 + 4)

D = √20

D = 4.5 units

based on the given sample data, there is evidence to suggest that the true population mean number of hours worked per week for white-collar employees is more than 40 hours.

To determine if there is evidence to suggest that the true population mean number of hours worked per week is more than 40 hours, we can conduct a hypothesis test. We'll use a one-sample t-test since the population standard deviation is unknown, and the sample size is small (n = 25).

Let's set up the null and alternative hypotheses:

Null hypothesis (H0): The true population mean number of hours worked per week is 40 hours or less.

Alternative hypothesis (Ha): The true population mean number of hours worked per week is more than 40 hours.

We'll use a significance level (alpha) of 0.05.

Next, we calculate the test statistic (t-value) using the sample mean, sample standard deviation, sample size, and the hypothesized population mean (40 hours) under the null hypothesis:

t = (sample mean - hypothesized mean) / (sample standard deviation / sqrt(sample size))

t = (44 - 40) / (8 / sqrt(25))

t = 4 / (8 / 5)

t = 2.5

We then compare the calculated t-value with the critical t-value from the t-distribution table at the given significance level and degrees of freedom (n - 1). With 24 degrees of freedom, a one-tailed test, and a significance level of 0.05, the critical t-value is approximately 1.711.

Since the calculated t-value (2.5) is greater than the critical t-value (1.711), we can reject the null hypothesis. There is evidence to suggest that the true population mean number of hours worked per week is more than 40 hours.

In conclusion, based on the given sample data, there is evidence to suggest that the true population mean number of hours worked per week for white-collar employees is more than 40 hours.

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The likelihood of finding that the sample mean is between 59,050 and 60,950 miles can be determined by calculating the probability using the normal distribution with a sample size of 90, a population mean of 60,000 miles, and a population standard deviation of 4,000 miles.

To find out the probability of getting a sample mean between 59,050 and 60,950, a simulator is used to determine the tread life of tires mounted on light-duty trucks that follows a normal probability distribution.

Here, the population mean is 60,000 miles and the standard deviation is 4,000 miles. The given sample size is 90.

We can use the formula for standardizing the score. The standardized score for the lower limit of 59,050 is -2.78, and that of the upper limit of 60,950 is 2.78. Now, we need to find the probability of getting the mean value between -2.78 and 2.78.

We can use the standard normal distribution table to find the value, which is 0.9950 for z = 2.78 and 0.0050 for z = -2.78. Hence, the required probability is 0.9900.

Therefore, the likelihood of finding that the sample mean is between 59,050 and 60,950, for a sample size of 90 tires, is 0.9900.

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Answer:

1 ofc

Step-by-step explanation:

Think of it:

1% is pretty much \(\frac{1}{100}\)

so the equal to that is 1

I hope this answers your question :) If you want to mark me as brainliest (its ok if not :) im just trying to get enough to unlock messages

Yes, the order of the quantities in an inequality matters, and examples are given to show why.

The four inequality symbols, along with their meaning, are presented as follows:

It is known that the number 5 is greater than the number 3, hence the inequality that describes these numbers is given as follows:

5 > 3.

However, if we tried to apply the commutative property, that is, changing the order of the numbers, we would have that:

3 > 5.

Which is a false statement, as the number 3 is less than the number 5, and not more.

This shows that the order of the symbols in an inequality in fact does matter.

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Answer:

599.401

Step-by-step explanation:

From the image given, angle BCF is a linear pair with ACF as both of them are on a straight line and add up to 180 degres

BCF

Answer:

Step-by-step explanation:

There are two ways to do this.

Her current pay is C

Her previous pay is x

C = x + 7/100 * x

Or you could combine x and 7% of x immediately

7/100 x = 0.07x

C = 1.07 * x

Answer:

x times 107%

Step-by-step explanation:

If Mrs. Franklin received a 7% raise on x salary she would now be earning 7% more than x. To find this we can easily multiply x by 107% since she is earning 7% more than her previous salary, or x, and get our answer.

Brainliest pls... ∪ω∪

Answer:

32.99

Step-by-step explanation:(you might have to round) if you have to round it or.. but this is it because

236.40 divided by 24 is 9.85 so

325 divided by 9.85 is 32.99 (you only need 2 decimal places for these kinds of questions because of repeating decimals).

Hope this helps :)

The area of each k-th rectangle is

Thus, after summing the areas of the n rectangles, we obtain:

Then, to find the area under the curve we need to take the limit as n approaches infinity. So, we obtain:

Therefore, option A is correct.

Answer:

The answer is A in the picture above

Step-by-step explanation:

I took the test with 100 percent, im confident in my answer.

have a great day

Answer:

total = 316. 41

Step-by-step explanation:

6% of 298.50 = 17.91

298.50 + 17.91= 316.41

The simplified expression is \(21x^2 - 25x - 28\) in the given case.

An expression in mathematics is a combination of numbers, symbols, and operators (such as +, -, x, ÷) that represents a mathematical phrase or idea. Expressions can be simple or complex, and they can contain variables, constants, and functions.

"Expression" generally refers to a combination of numbers, symbols, and/or operations that represents a mathematical, logical, or linguistic relationship or concept. The meaning of an expression depends on the context in which it is used, as well as the specific definitions and rules that apply to the symbols and operations involved. For example, in the expression "2 + 3", the plus sign represents addition and the meaning of the expression is "the sum of 2 and 3", which is equal to 5.

To simplify the expression, first distribute the -3x and (3x + 4) terms:

\(-3x(4 - 5x) + (3x + 4)(2x - 7) = -12x + 15x^2 + (6x^2 - 21x + 8x - 28)\)

Next, combine like terms:

\(-12x + 15x^2 + (6x^2 - 21x + 8x - 28) = 21x^2 - 25x - 28\)

Therefore, the simplified expression is \(21x^2 - 25x - 28.\)

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Answer:

If the family has $800 for sit-down restaurant meals and fast food and they budgeted all of it for fast food, then they can buy $800/$20 = 40 fast food meals.

Step-by-step explanation:

yw;)

Answer:

40

Step-by-step explanation:

No. Of Meal=Budget/price of Meal

=800/ 20

=40

Answer:

what?

Step-by-step explanation:

9514 1404 393

Answer:

Step-by-step explanation:

The net will be a rectangle representing the lateral area. Its length will be 2π(4 in), the circumference of the box, and its height will be 9 in, the height of the box. On either side of that rectangle will be an 8-in diameter circle representing the ends of the box.

The total surface area is given by the formula ...

  SA = 2πr(r +h)

For one box, the area is ...

  SA = 2(3.14)(4 in)(4 in +9 in) ≈ 326.6 in² . . . . area of one box

__

There are 144 square inches in a square foot, so the area required for 1500 boxes is ...

  (1500)(326.56 in²)/(144 in²/ft²) ≈ 3402 ft² . . . area of 1500 boxes

Answer:

michin babo-e daehae museun mal-eulhaneungeoya

By simple algebra, Jane is 57 9/20 inches taller.

If one object or person's height exceeds that of another, the taller object or person is said to exist. There is a two-object or two-person limit. Taller is a relative term. For instance: Hoppy stands at 7 feet.

You can begin this issue by first figuring out Dwight's height. At 54 3/4 inches, he would be 1 1/2 inches taller than Chloe:

54 3/4 plus 1 1/2 equals 55 + (3/4 + 1/2) equals 55 + (3/4 + 2/4) equals 55 + 5/4 equals 56 1/4 inches.

Dwight stands at 56 1/4 inches.

Dwight is 1 1/5 inches shorter than Jane, so

56 1/4 plus 1 1/5 is 57 plus (1/4 plus 1/5) is 57 plus (5/20 plus 4/20) is 57 plus 9/20 is 57 9/20 inches.

Jane stands at 57 9/20 inches.

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Answer:

i would go with Mean. Although I’m not entirely sure since the question seems pretty vague

Step-by-step explanation:

Answer:

Its the mean!

Step-by-step explanation:

I got it right on I-Ready!:))

Answer:

slope intercept:

y=3/4x-7

point slope form:

I used the y intercept (0,-7) as a point to plug into point slope form.

y+7=3/4(x-0)

Step-by-step explanation:

Answer:

5

Step-by-step explanation:

1) origin point is (0;0);

2) the required distance is:

\(d=\sqrt{(-3-0)^2+(4-0)^2} =5.\)

Answer:

1. F ( x ) = 3/4x^4 + 7/2x^21 - 26x + C

2. G ( x ) = 1/2X^2 + 2x + C

Answer:

2.45%

Step-by-step explanation:

(2.86 - 2.79) / 2.86 = 0.0245

0.0245 x 100 = 2.45%

Answer:

9. First Five terms

If n=0. Then,

\( \frac{4(0) - 5}{2}\)

\( \frac{0 - 5}{2} = \frac{ - 5}{2} \)

If n=1. Then,

\( \frac{4(1) - 5}{2} \)

\( \frac{4 - 5}{2} = \frac{ - 1}{2} \)

If n=2. Then,

\( \frac{4(2) - 5}{2} \)

\( \frac{8 - 5}{2} = \frac{3}{2} \)

If n=3. Then,

\( \frac{4(3) - 5}{2} \)

\( \frac{12 - 5}{2} = \frac{7}{2} \)

If n=4. Then,

\( \frac{4(4) - 5}{2} \)

\( \frac{16 - 5}{2} = \frac{11}{2} \)

If n=5. Then,

\( \frac{4(5) - 5}{2} \)

\( \frac{20 - 5}{2} = \frac{15}{2} \)

If n=6. Then,

\( \frac{4(6) - 5}{2} \)

\( \frac{24 - 5}{2} = \frac{19}{2} \)

Answer:

318.6

Step-by-step explanation:

(3x-9) + (x+15) = 180

3x (x+15) -9 (x+15)

4x + 45x - 9x + 6 = 180

40x + 6 = 180

40x = 180 - 6

40x = 174

x = 4.34

(3x-9) = 4.34 * 3x-9 = 4.02

(x+15) = 4.34 + 15 = 19.34

180 - (4.02 + 19.34)

= 180 - 23.36

= 156.64

hope this answer helps!!

Answer:

C

Step-by-step explanation:

distance over time equals speed

.

The number of teachers volunteer at a senior center are 33.

Given that, forty-four teachers volunteer at an animal shelter.

From the given circle chart,

20% at an animal shelter.

Let the total number of teachers be x.

Here, 20% of x=44

20/100 ×x=44

1/5 ×x=44

x= 220

15% at a senior center

Here, 15% of 220

= 15/100 ×220

= 0.15 ×220

= 33

Therefore, the number of teachers volunteer at a senior center are 33.

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The closest answer is 80 cupcakes per minute, so the correct option is .8. The closest answer is 165 minutes, so the correct option is 165.

The throughput capacity of the icing stage can be calculated by dividing the number of cupcakes in a batch (100) by the time required to process each cupcake (1.25 minutes).

Throughput capacity = Number of cupcakes in a batch / Time to process each cupcake

Throughput capacity = 100 cupcakes / 1.25 minutes

Throughput capacity = 80 cupcakes per minute

The closest answer is 80 cupcakes per minute, so the correct option is .8.

The throughput time for a batch of cupcakes is the time required to process the entire batch, including the setup time.

Throughput time = Time for setup + (Number of cupcakes in a batch * Time to process each cupcake)

Throughput time = 40 minutes + (100 cupcakes * 1.25 minutes per cupcake)

Throughput time = 40 minutes + 125 minutes

Throughput time = 165 minutes

The closest answer is 165 minutes, so the correct option is 165.

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Answer:

the answer is undefined

Step-by-step explanation: