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3 years ago

PLEASE PLEASE I NEED HELP ON THIS ASAP

Mathematics

2 answers:

kolbaska11 [484]3 years ago

8 0

Answer:

D/Its the last one: 2 and 7.

Step-by-step explanation:

Interior angles are usually angles on the inside and on the same line like 4 and 7, and 2 and 5. however ALTERNATE interior angles are angles that are still on the inside, but are across from each other, like 2 and 7, or 4 and 5.

Alisiya [41]3 years ago

6 0

Answer:

Step-by-step explanation:

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"There are 15 questions on an exam. In how many ways can the exam be answered with exactly 8 answers correct?"

erastovalidia [21]

Answer:

The exam can be answered with exactly 8 answers correct in 6435 ways.

Step-by-step explanation:

The order is not important.

For example, answering correctly the questions 1,2,3,4,5,6,7,8 is the same outcome as answering 2,1,3,4,5,6,7,8. So we use the combinations formula to solve this problem.

Combinations formula:

$C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

"There are 15 questions on an exam. In how many ways can the exam be answered with exactly 8 answers correct?"

Combinations of 8 questions from a set of 15. So

$C_{15,8} = \frac{15!}{8!(15-8)!} = 6435$

The exam can be answered with exactly 8 answers correct in 6435 ways.

5 0

3 years ago

-23-10x ≤ 47 (Solving two step inequalities)

Citrus2011 [14]

Answer: x >= -7

(x is greater than or equal to negative seven)

7 0

3 years ago

Read 2 more answers

Zina [86]

Answer:

y=5/3x

Step-by-step explanation:

5 0

3 years ago

I go bowling every week and keep track of how many strikes i get: 2,0,4,7,7,0,1,0 Find the mode median and mean of this set of d

natima [27]

Answer:

Mode is 0
Median is 1
Mean is 2.625

Step-by-step explanation:

To find the mode, or modal value, it is best to put the numbers in order. A number that appears most often is the mode.
0, 0, 0, 1, 2, 4, 7, 7 = mode is 0

To find the Median, place the numbers in value order and find the middle number.
0 , 0 , 0 , 1 , 2 , 4 , 7 , 7 = median is 1

The mean is the average of the numbers. It is easy to calculate: add up all the numbers, then divide by how many numbers there are.
0 + 0 + 0 + 1 + 2 + 4 + 7 + 7 / 8 = mean is 2.625

5 0

3 years ago

An important application of regression analysis in accounting is in the estimation of cost. By collecting data on volume and cos

Amanda [17]

Answer:

Y = 7.60X + 1246.67

Step-by-step explanation:

Given the data:

Production Volume (units) Total Cost ($)

400 4000

450 5000

550 5400

600 5900

700 6400

750 7000

Using technology, the linear regression calculator, the regression model obtained by fitting the data is :

Y = 7.60X + 1246.67 ; which is the model giving the relationship between Production volume, x and total cost, y.

Slope = 7.60

Intercept = 1246.67

6 0

3 years ago