Answer:
16xpi
Step-by-step explanation:
To find the area of a circle the formula is pi r squared.
r represents radius, aka 4x.
4 times 4 yields 16.
Leaving you with 16xpi
Answer: 21.6 m
Step-by-step explanation:
Given
A football field measures 
If a football field similar in shape to a full size has a length 
The ratio of the length of the original to the small field is the same
Assume the width of the small field is w
Thus, the width of the field is 21.6 m
Answer:
x=+/-3
Step-by-step explanation:
x^4-5x^2-36=0
factor
(x^2-9)(x^2+4)=0
split into 2 equations because one of these terms will need to equal zero for the eqation to be true
x^2-9=0 x^2+4=0
x^2=9 x^2=-4
x=+/-3 no real numbers
The correct answer would be Victoria's method is linear because the number of minutes increased by an equal number every month. Every month Victoria read for 15 minutes more, than she did the previous month, but Zach read 2 times more minutes, than he did the month before.
6/40 simplified is 3/20
3/20=15/100
100-15=85
The answer is 85%
