Answer:
20
Step-by-step explanation:
The two given and marked angles add up to 90.
A = x
B = 3x + 10
A + B = 90 Substitute for A and B. A and B are just letters I gave things.
x + 3x + 10 = 90 Combine the left
4x + 10 = 90 Subtract 10 from both sides.
4x +10-10 = 90-10 Combine
4x = 80 Divide by 4
4x/4=80/4
x = 20
Answer:
M^7
Step-by-step explanation:
add the exponents together.
Answer:
B
Step-by-step explanation:
<h2>-6+[4-(x-2)]</h2>
-6+[4-x+2]
-6+[6-x]
-6+6-x
-x
Answer:
its 22 i've go to harvard to answer this types of questions!
Step-by-step explanation: 2(x+4)(x-4) is the factored form of 2x^2-32.