Answer:
8.9
Step-by-step explanation:
15.71428571-6.8=8.914285714
We round of to one significant figure because its addition n the lowest is 6.8
Answer:
-32
Step-by-step explanation:
When using exponents, the base number is multiplied by that amount if times.
So, (-2)^5 =
-2 * -2 * -2 * -2 * -2 = -32
Hope this helps!
104 = -16t^2 + 729
16t^2 = 729 - 104 = 625
t^2 = 625/16 = 39.0625
t = sqrt(39.0625) = 6.25
Answer= t > 6.25
Hopee this helps!(: