4x - 12 = 36 *
pls helppppppppppppppppp

If the original quantity is 8 and the new quantity is 2, then the correct answer is 75%.

For this question we need to subtract and multiply the numbers. We know that 2 = 25% of 8 so:

\(\boxed{8-2=6}\\\boxed{6/2=3}\)

We are going to take that 25% and multiply it with 3 to get are final answer.

\(\boxed{25*3=75}\\\boxed{So,2=75}\)

Therefore, If the original quantity is 8 and the new quantity is 2, then the correct answer is 75%.

A regular polygon with angles that all measure 162 degrees has 20 sides.

Let's first consider a formula to find the measure of an interior angle of a regular polygon. We can use the formula:

Interior angle = (n-2) x 180 / n,

where n is the number of sides of the polygon.

If all angles of the polygon measure 162 degrees, then we can set up an equation:

(n-2) x 180 / n = 162

Multiplying both sides by n, we get:

(n-2) x 180 = 162n

Expanding the left side, we get:

180n - 360 = 162n

Subtracting 162n from both sides, we get:

18n - 360 = 0

Adding 360 to both sides, we get:

18n = 360

Dividing both sides by 18, we get:

n = 20

For more such questions on Polygon

https://brainly.com/question/29425329

#SPJ11

Answer:

? = 63

Step-by-step explanation:

Since this is a right triangle, we can use trig functions

cos ? = adj/ hyp

cos ? = 6/13

Taking the inverse cos of each side

cos^-1 (cos ?) = cos^-1 (6/13)

? = 62.51357

To the nearest degree

? = 63

Answer:

a. 70 miles per hour

b. 840 miles

Step-by-step explanation:

280/4 = 70 miles per hour

70*12 = 840 miles

Answer:

a) 70 miles per hour

b)840 miles

Step-by-step explanation:

a) to find the speed, do distance/time

b) if you do 70 miles an hour, and you want to know 12 hours, just times 70x 12

Answer:

ummm maybe because you used [ instead of ( ?

Step-by-step explanation:

i feel like yours should be correct though since its including -3

The chi-square statistic is used to determine whether there are differences between two nominally scaled variables. Chi-Square is a statistical test used to compare two nominal variables to determine whether they differ.

The Chi-Square test is used to test for differences between two groups. When you want to compare groups or examine the relationship between two variables, this test is useful. The chi-square test is a method of statistical inference that can be used to compare observed frequencies with expected frequencies, allowing us to determine whether there is a meaningful difference between them. When the p-value obtained from a chi-square test is less than 0.05, it is generally considered statistically significant.

Learn more about Chi-Square

https://brainly.com/question/32595988

#SPJ11

The answer is Maunel

Answer:

tori i guess

Step-by-step explanation:

Answer:

h = 1/3

Step-by-step explanation:

-18(2h + 4) + 12 = -74

-18(2h + 4) = -74 - 12

-18(2h + 4) = -86

(-18 × 2h) + (-18 × 4) = -86

-36h + - 74 = -86

-36h - 74 = -86

-36h = -86 + 74

-36h = -12

h = -12 ÷ -36

h = 1/3

Answer:

I think it's D, I'm not really sure, but that's my best answer.

Step-by-step explanation:

None.

Answer:

The opportunity cost is $85.

Step-by-step explanation:

The scheduled for work = 10 hours.

Money that Amber makes by earning =  $8.50 per hour.

Total money earned by Amber = 10 ×8.50 = $85

The fee of the filed trip = $30

Now we have to find the filed trip’s opportunity cost. Since we know that the opportunity cost is the amount that is left in order to get the best alternative. Therefore, if Amber goes on a field trip then he has to forgive the earning. So, the total earning $85 is the opportunity cost.

Answer:

x = 72° , y = 54°

Step-by-step explanation:

x and 108° are adjacent angles on a straight line and sum to 180°

x + 108° = 180° ( subtract 108° from both sides )

x = 72°

The vertex of the triangle on the left is vertically opposite x and is congruent

vertex = 72°

The sum of the 3 angles in the triangle = 180° , that is

y + y + 72° = 180°

2y + 72° = 180° ( subtract 72° from both sides )

2y = 108° ( divide both sides by 2 )

y = 54°

Answer:

so the answer is y=54°

Step-by-step explanation:

that is my answer hope it helps

Answer:

3 - x ≥ 15

Step-by-step explanation:

3 - x ≥ 15

Answer:

13 meters

Step-by-step explanation:

The 5 m and 12 m he jogged are the legs of a right triangle. The shorter distance in a straight line is the hypotenuse of the right triangle. We can use the Pythagorean theorem to find the straight line distance.

a² + b² = c²

5² + 12² = c²

25 + 144 = c²

c² = 169

c = √169

c = 13

Answer: 13 meters

Answer:

9

Step-by-step explanation:

18 + 18 is like 36 divied by 2 is 18 then dvide that by two is 9 so 9

Confidence interval of the mean.

We have to calculate a 95% confidence interval for the mean.

The population standard deviation is not known, so we have to estimate it from the sample standard deviation and use a t-students distribution to calculate the critical value.

The sample mean is M=512.

The sample size is N=51.

When σ is not known, s divided by the square root of N is used as an estimate of σM:

The degrees of freedom for this sample size are:

The t-value for a 95% confidence interval and 50 degrees of freedom is t=2.

The margin of error (MOE) can be calculated as:

Then, the lower and upper bounds of the confidence interval are:

Answer: The 95% confidence interval for the mean is (481.5, 542.5).

Answer:

1/2

Step-by-step explanation:

Prim number are 1, 2, 3, 4, 7, and 11. That is six numbers out of twelves, 6/12, is 50%.

Answer:

The correct answer is D

Step-by-step explanation:

I'm pretty sure. Thank you.

Given c = 10.5, m∠A = 30, and m∠B = 52, we can use the Law of Sines to find b. Rounded to the nearest tenth, b ≈ 8.0.

Given b = 20, a = 26, and m∠A = 65, we can use the Law of Sines to find m∠B. Rounded to the nearest tenth, m∠B ≈ 47.5.

Given a = 125, m∠A = 42, and m∠B = 65, we can use the Law of Sines to find c. Rounded to the nearest tenth, c ≈ 154.3.

Given c = 18.4, m∠B = 35, and m∠C = 52, we can use the Law of Sines to find a. Rounded to the nearest tenth, a ≈ 10.5.

Given a = 12.5, m∠A = 50, and m∠B = 65, we can use the Law of Sines to find b. Rounded to the nearest tenth, b ≈ 15.2.

1)To find the length of side b, we can use the Law of Sines. The formula is:

b/sin(B) = c/sin(C)

Plugging in the given values:

b/sin(52) = 10.5/sin(180 - 30 - 52)

Using the sine addition formula:

b/sin(52) = 10.5/sin(98)

Cross-multiplying:

b * sin(98) = 10.5 * sin(52)

Dividing both sides by sin(98):

b = (10.5 * sin(52)) / sin(98)

Calculating the value:

b ≈ 7.96

Rounded to the nearest tenth:

b ≈ 8.0

2)To find the measure of angle B, we can use the Law of Sines. The formula is:

sin(B)/b = sin(A)/a

Plugging in the given values:

sin(B)/20 = sin(65)/26

Cross-multiplying:

sin(B) = (20 * sin(65)) / 26

Taking the inverse sine:

B ≈ \(sin^{(-1)\)((20 * sin(65)) / 26)

Calculating the value:

B ≈ 47.5

Rounded to the nearest tenth:

B ≈ 47.5

3)To find the length of side c, we can use the Law of Sines. The formula is:

c/sin(C) = a/sin(A)

Plugging in the given values:

c/sin(65) = 125/sin(42)

Cross-multiplying:

c * sin(42) = 125 * sin(65)

Dividing both sides by sin(42):

c = (125 * sin(65)) / sin(42)

Calculating the value:

c ≈ 154.3

Rounded to the nearest tenth:

c ≈ 154.3

4)To find the length of side a, we can use the Law of Sines. The formula is:

a/sin(A) = c/sin(C)

Plugging in the given values:

a/sin(35) = 18.4/sin(52)

Cross-multiplying:

a * sin(52) = 18.4 * sin(35)

Dividing both sides by sin(52):

a = (18.4 * sin(35)) / sin(52)

Calculating the value:

a ≈ 10.5

Rounded to the nearest tenth:

a ≈ 10.5

5)To find the length of side b, we can use the Law of Sines. The formula is:

b/sin(B) = a/sin(A)

Plugging in the given values:

b/sin(65) = 12.5/sin(50)

Cross-multiplying:

b * sin(50) = 12.5 * sin(65)

Dividing both sides by sin(50):

b = (12.5 * sin(65)) / sin(50)

Calculating the value:

b ≈ 15.2

Rounded to the nearest tenth:

b ≈ 15.2

Know more about Law of Sines    here:

https://brainly.com/question/30401249

#SPJ8

The complete question is :

Given the measures of AABC. answer the following question. Then round off answers to the nearest tenths.

1. If c = 10.5, m∠A = 30, m∠ B=52, find b.

2. If b=20, a = 26, m∠ A= 65, find m ∠ B.

3. If a = 125, m∠A=42, m ∠ B=65, find c.

4. If c= 18.4, m∠ B = 35, m ∠ C= 52, find a.

5. If a = 12.5, m∠A = 50, m∠ B = 65, find b

The change in profit (ΔP) when the number of units (Δx) increases by 5, based on the given marginal profit function, is -18331.50

To find the change in profit (ΔP) when the number of units (Δx) increases by 5.

we need to evaluate the marginal profit function and multiply it by Δx.

The marginal profit function is given by dP/dx = 12.1(60 - 3x).

We are given the value of x as 121, so we can substitute it into the marginal profit function to find the marginal profit at that point.

dP/dx = 12.1(60 - 3(121))

= 12.1(60 - 363)

= 12.1(-303)

= -3666.3

Now, we can calculate the change in profit (ΔP) by multiplying the marginal profit by Δx, which is 5 in this case.

ΔP = dP/dx×Δx

= -3666.3 × 5

= -18331.5

To learn more on Change in Profit click:

https://brainly.com/question/31420071

#SPJ4

Answer:

y = 1x + -2

Step-by-step explanation:

Step 1: Calculating Slope (m).

m = y2 - y1 / x2 - x1

m =  -4 - 0 / -2 - 2

m = -4 / -4

m = 1

Now put value of m in equation...

y = 1x + b

Step 2: Calculating Y-intercept (b).

Lets choose the first point, ( 2, 0) for calculating y-intercept:

y = m ( x ) + b

0 = 1 ( 2 ) + b

0 = 2 + b

-2 = b

b = -2

Now put value of b in equation for your final answer...

y = 1x + -2

Hope this helps!

The p-value can be found with the F-distribution table or statistical software. If the p-value is less than or equal to α, then answer is option (a),If the p-value is greater than α, then answer is option (b).

To determine the correct statistical decision based on the given F-statistic, F (3, 12) = 2.72, we need additional information such as the significance level (α) of the hypothesis test. The significance level is a predetermined threshold that is used to assess the statistical significance of the results.

The correct decision depends on whether the calculated p-value, which quantifies the strength of evidence against the null hypothesis, is less than or equal to the significance level (α).

To find the p-value, you would need the F-distribution table or statistical software.

Once you have the p-value, you can compare it to the significance level (α) to make a decision:

If the p-value is less than or equal to α, you would reject the null hypothesis, indicating a statistically significant mean difference.

If the p-value is greater than α, you would fail to reject the null hypothesis, suggesting that there is not a statistically significant mean difference.

Therefore, without the significance level or the p-value, it is not possible to determine the correct statistical decision.

Learn more about p-value here:

https://brainly.com/question/30461126

#SPJ11

The statements below that show y = x² 2x - 1 being converted to vertex form. The conversion of y = x² + 2x - 1 to vertex form is y = (x + 1)² - 2.

To convert the quadratic equation y = x² + 2x - 1

to vertex form, we need to complete the square.

Here's how:
1. Write the equation:

y = x² + 2x - 1
2. Take half of the coefficient of x and square it:

(2/2)² = 1
3. Add the result from step 2 to both sides of the equation:

y + 1 = x² + 2x + 1 - 1
4. Simplify:

y + 1 = (x + 1)² - 1
5. Rewrite the equation in vertex form:

y = (x + 1)² - 2
So, the conversion of

y = x^2 + 2x - 1

to vertex form is

y = (x + 1)² - 2.

To know more about vertex form visit:

https://brainly.com/question/22649174

#SPJ11

If 64 is a perfect cube the length of each edge of the block can be found. The edge length of a cube is: 4cm.

Given:

Volume of cube=64cm³

Hence:

Volume of the cube = a³

Volume of the cube, a³= 64 cm³

Using this formula

Cube edge length =∛(side)³

Let plug in the formula

Cube edge length =∛(64cm³)

Cube edge length=4cm

Therefore if 64 is a perfect cube the length of each edge of the block can be found. The edge length of a cube is: 4cm.

Learn more about edge length of a cube here:https://brainly.com/question/16673486

#SPJ1

Answer:

B. 9 in, 4in, 6in

Step-by-step explanation:

In order to form a triangle

The sum of the lengths of any two sides of a triangle should be greater than the length of the third side. So

Let's take option B

9 + 4 > 6

13 > 6 ( True) ✔

4 + 6 > 9

10 > 9 (True) ✔

9 +6 > 4

15 > 4 ( True) ✔

So 9 in, 4in, 6in can form a triangle.

Step-by-step :

-9-(-1)

-9+1=-8

The probability of a Type II error is represented by beta. Thus, the correct answer is option B.

Beta represents the probability of failing to reject the null hypothesis when it is false.

On the other hand, Type I error (alpha) represents the probability of rejecting the null hypothesis when it is true. A Type II error occurs when a false null hypothesis is not rejected. Hence, beta is the probability of making a Type II error.

The null hypothesis is rejected when the p-value is less than or equal to the level of significance, not exceeds it.

The p-value is the probability of obtaining a result as extreme as or more extreme than the observed result when the null hypothesis is true. If the p-value is less than the level of significance, the null hypothesis is rejected, and vice versa.

Hence, the statement "The null hypothesis is rejected when the p-value exceeds the level of significance" is false.

To know more about probability visit

https://brainly.com/question/13604758

#SPJ11

Answer:

\(P = \frac{5}{282} = 0.0177\)

Step-by-step explanation:

First we need to find the total amount of apples in the crate:

Total = 10 + 14 + 4 + 18 = 46 apples

The probability of the first apple being a golden delicious apple is the number of those apples over the total number of apples:

\(P(golden) = \frac{N(golden)}{N(total)}\)

\(P(golden) = \frac{4}{48} = \frac{1}{12}\)

Then, the probability of the second apple being a granny Smith apple is the number of those apples over the total number of apples, but now the total number of apples is one less, because one apple was removed from the crate:

\(P(granny) = \frac{N(granny)}{N(total)-1}\)

\(P(granny) = \frac{10}{47}\)

The final probability we want is the product of those two probabilities:

\(P = P(golden) * P(granny) = \frac{1}{12} \frac{10}{47} = \frac{10}{564} = \frac{5}{282}= 0.0177\)

The probability that the person selected will be someone whose response is never and who is a woman is 0.0636 = 6.36%.

A probability of an occurrence in the context of a problem is calculated by dividing the desired outcomes in the problem by the entire number of outcomes in the problem.

In the context of this problem, these outcomes are given as follows:

Desired outcomes: people whose response is never and who are women.

Total outcomes: all participants.

Hence, as all participants represent the desired outcomes, the probability that the person selected will be someone whose response is never and who is a woman is the relative frequency of people who are women and who respond never, which is: 0.0636 = 6.36%.

Missing question:

(Refer to the image for the complete question)

One person surveyed will be selected at random:

What is the probability that the person selected will be someone whose response is never and who is a woman?

What is the probability that the person selected will be someone whose response is never 0r who is a woman?

What is the probability that the person selected will be someone whose response is never given and that the person is a woman?

For the people surveyed are the events of being a person whose response is never and being woman independent?

To learn more about probability visit:brainly.com/question/29007463

#SPJ4