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:
25
Step-by-step explanation:
(-5)^2
(-5)*(-5)
25
Answer:
.4
Step-by-step explanation:
Answer: They all = 0 How?
Step-by-step explanation:
Anything in mulitplcation that is times by 0 will always equal to zero.
5^10X0 = 0
10^5X0 = 0
- R3KTFORGOOD ☕