Answer:
10
Step-by-step explanation:
5 to the power of 2 is 25, and -3 times 5 is -15, so 25-15=10
15 because when you do the Pythagorean Therom 8squared plus the length squared equals 17squared so you get x squared equals 15
Answer:
7 units
Step-by-step explanation:
The x is the same, so find the difference in y.
3 - -4 = 7
Answer:
D) 
Step-by-step explanation:
You have to use the laws of exponents to solve this:
Power of a Power: 
. In this case, 
, all of the numbers in the parenthesis need to be multiplied to the power of 3: 
.
Quotient of Powers: 
. In this case, 
, all of the exponents need to be subtracted (but the 4³ (64) and 8 need to be divided): 
.
Use the Power of a Power again for the expression at the right: 
. You get: 
. Keep the subtraction/negative sign where it is.
Together, you get: .
Hope it helps!
