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Tems11 [23]
3 years ago
5

Somebody know how to do this?

Mathematics
1 answer:
Lubov Fominskaja [6]3 years ago
6 0

Answer:

x=1

Step-by-step explanation:

55+70=125

sum of angles in a triangle is 180 so

180-125=55

54x+1=55

x=1

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Two angles are complementary. One has a measure of 25 degrees. What is the measure of the other angle?
Pani-rosa [81]

Answer:

65 degrees

Step-by-step explanation:

Since complementary angles are 2 angles that add up to 90 degrees, all you have to do is subtract 25 from 90.

When you do that you get 65.

Example: 90 - 25 = 65

8 0
3 years ago
Alyssa is factoring the following expression p∆2-8p-9. She said the answer is (p-1) (p +9). Is she correct? If not, explain her
Lesechka [4]

Answer:

Step-by-step explanation:

p^2-8p-9

factor out the trinomial

(p-9)(p+1)

Therefore, she's incorrect. Because (p-1)(p+9)=p^2-p+9p-9=p^2+8p-9 and that's different from p^2-8p-9.

5 0
3 years ago
Which of the following numbers would have 10^3 in its scientific notation?
Monica [59]

Answer:

D. 9,700

Step-by-step explanation:

6 0
3 years ago
A line passes through the points (2,4) and (5,6) . Select Yes or No to tell whether each equation describes this line. Equation
krek1111 [17]

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3 0
3 years ago
8) x - 5y = -15<br> x - 2y = -12
Alex787 [66]

Answer:

If solving for X. (didn't know if you were solving for X or Y.

x=2y-12

x=5y-15

Step-by-step explanation:

x-2y=-12

+2y on both sides

x=2y-12

x-5y=-15

+5y on both sides

x=5y-15

6 0
3 years ago
Read 2 more answers
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