To answer this question, you need to know the formula for calculating the perimeter of a rectangle and translating the description into the formula. The description formula should be:
width = x
length - 1 = 1/6 x
length= 1/6 x +1
Then adding them to perimeter formula you will get
perimeter= length * width
perimeter= 1/6x+ 1 * x= 1/6x^2 + x
Answer:
5m - 27
Step-by-step explanation:
3(m - 9) + 2m
3m - 27 + 2m
5m - 27
It takes 9 seconds to hit the ground.
Setting the equation equal to 0, we have:
0 = 144 + 128t - 16t²
Factoring out the GCF, we have
0 = 16(9 + 8t - t²)
Factoring out -1, we have:
0 = -16(-9 - 8t + t²)
In standard form, this is
-16(t² - 8t - 9) = 0
This is easily factorable; -9(1) = -9 and -9+1 = -8:
-16(t-9)(t+1) = 0
Using the zero product property, we know either t-9=0 or t+1=0; therefore t=9 or t=-1. Since negative time makes no sense, t=9.
Answer:
4x^2 - 1 = 0
Step-by-step explanation:
x = 1/2, x = -1/2
2x = 1, 2x = - 1
2x - 1 = 0, 2x + 1 = 0
( 2x - 1 )( 2x + 1 ) = 0
4x^2 - 1 = 0
Answer:
I think 2 but sorry if I'm wrong
Step-by-step explanation: