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Margaret [11]
3 years ago
15

Please help thank you very much. 20 points.

Mathematics
2 answers:
Goryan [66]3 years ago
8 0
The correct answer is S.
qaws [65]3 years ago
7 0
Answer is the letter S
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C
Zolol [24]

The  value of this expression when =-2 and x=-1 is: 3.

<h3>Value of the expression</h3>

Given equation:

-2 and x=-1

Solving the value of the given equation

-2 and x=-1

Hence:

=-(-1)+2

=1+2

=3

Therefore the value of this expression when =-2 and x=-1 is: 3.

Learn more about Value of the expression here:

brainly.com/question/912391

brainly.com/question/625174

#SPJ1

6 0
2 years ago
answer these BOTH. PLEASE! if u answer both correctly i'll give u brainliest and extra points please please please.
Reil [10]

<u>Answer:</u>

9. x = 12

10. x = 31

<u>Step-by-step explanation:</u>

9. Corresponding angles are equal, so technically you can move that (7x - 20) to be diagonal with the (4x + 16). Along with the corresponding angle, diagonal angles are equal to each other. Therefore you can set (7x - 20) equal to (4x + 16) to find x.

7x - 20 = 4x + 16

Solve

3x - 20 = 16

3x = 36

x = 12

Therefore x is equal to 12

<u>Check:</u>

4(12) + 16

= 64

7(12) - 20

= 64

10. All angles in a triangle have to add up to 180 degrees. Therefore, you can write your equation like this:

x + 2x + 25 + 2x = 180

Combine like terms

5x + 25 = 180

Solve

5x = 155

x = 31

Therefore, x = 31.

<u>Check:</u>

31 + 2(31) + 25 + 2(31) = 180

31 + 62 + 25 + 62 = 180

180 = 180

<em>I hope this helps!!</em>

<em>- Kay :)</em>

<em />

8 0
2 years ago
Read 2 more answers
If a driver was able to travel 600 miles in 3 hour what was his average speed
OleMash [197]

Answer:

(600 miles) / (3 hours) = 200 miles/hour

= 321.8 km/h

3 0
3 years ago
Read 2 more answers
How many times does 5 go into 100
Rasek [7]
<span>I believe in this item, we are asked to determine how many 5's should be added together in order to form 100. This is calculated by dividing 100 by 5. The answer by completing the operation would be equal to 20. Hence, the answer is 20. </span>
7 0
3 years ago
If 1 inch represents 85 miles on a map, then how many inches will represent 800 miles
Lena [83]

800/85 = 9.411764705882353‬ inches

ans = 9.411764705882353‬ inches

7 0
3 years ago
Read 2 more answers
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