64. 80x4=320. 80 is a b average. 320-252=68. 252 is the total of her current grades.
Answer: The dimensions of the frame:.
W= 2√10 or about 6.3245 inches
L= 4√10 or about 12.6491 inches
Step-by-step explanation:
This would be so much easier if the area of the box was 72. Then the dimensions of the frame would be 6 × 12. So just a little bit larger and more complicated.
Here the equation is w(2w)=80
2w^2 = 80 (2w is easier to work with than L/2).
w^2=40 (^2 means squared)
√w^2 = √40 square root of both sides: Factor 40. Take out√4
W = √4*10
W= 2√10
L= 2w = 4√10
6.3245 × 12.6491 = 80
Answer:
f\left(x\right)=\frac{1}{x^2}
Step-by-step explanation:
Answer:
(B)1 1/2 hours
Step-by-step explanation:
Greatest Time Spent Practicing = 2 Hours
Least Time spent Practicing = 1/2 Hour
Difference between the greatest and least times Erin practiced shooting free throws
= 2- 1/2
=1 1/2 hours
6 = equal or more than 6
thus each day kathy swims ≥ 6 laps