The question is asking which of the answer choices is NOT equivalent to
2^-3 = 1/(2^3) = 1/8
You can determine this by expressing each of the answer choices in a manner that lets you compare them to 2^-3 or to 1/8.
A. -2^3 = -8 . . . . . this is not equivalent to 2^-3 or 1/8. This is the appropriate selection.
_____
Let's check the others, just to be sure.
B. 2(1/4)^2 = 2(1/16) = 2/16 = 1/8 . . . . is equivalent to 1/8
C. 2^2 × 2^-5 = 2^(2-5) = 2^-3 . . . . is equivalent to 2^-3
D. (1/2)^3 = 1/2^3 = 1/8 . . . . is equivalent to 1/8
Our choice of A is correct, as all these other choices are equivalent to the given expression.
Answer:
c
Step-by-step explanation:
i am to lazy to explain so sry
Answer:
50.27
Step-by-step explanation:
remember that the circumference of a circle is 2πr
so 3.15x8 and then multiply by two
8+s=10 which could also be switched like this: 10-s=8 OR 10-8=s
It would be 50 cents each
