Get rid of negative exponents by remembering that x^-a= 1/x^a.
6^-3= 1/6^3
Evaluate the exponent
6^3= 216
Final answer: 1/216
Answer:
-12x+20
Step-by-step explanation:
12+2x-14x+8
Add constants: 20+2x-14x
Add variables: 20-12x
Reorder: -12x+20
Answer:
C
Step-by-step explanation:
The last one is absurd. You can't have a ladder reaching higher than itself. The question is a Pythagorean problem.
Givens
a = 3
b = ?
c = 25 feet
Formula
a^2 + b^2 = c^2
Solution
3^2 + b^2 = 25^2
9 + b^2 = 625 Subtract 9 from both sides.
b^2 = 625 - 9
b^2 = 616 Take the square root of both sides.
b = sqrt(616)
b = 24.8
Answer: for 4 The 24 balloons cost are $40 and 9 balloons are $1.67
Step-by-step explanation:
You haven't told us whether the rectangular prism is the size of a pack of gum or more like the size of a cruise ship.
Whatever size it is, here's the number of centimeter squares you need to cover the whole outside of it:
(2 x length x width) + (2 x length x height) + (2 x width x height)
with all measurements made in centimeters.
