Answer:
A. 1ft
Step-by-step explanation:
1 x 1 = 1 squared
So 1 foot x 1 foot = 1 square foot
Answer:
(x + 4) x 2
Step-by-step explanation:
x represents number of cookies Alice ate.
x + 4 represents the number of cookies Tim ate.
As Bob had eaten twice the number of cookies that Alice ate the expression should be
(x + 4) x 2
X is equal to 8
Y is equal to 19
Finding the zeros is just factoring the equation. It is also where the parabola crosses the x- axis.
First you need to find two numbers that mutliply to give you -21 and add to give you 4 then you put it into this form:
(x +7)(x-3) set each part equal to zero
x+7=0 and x-3=0 you get:
x=-7 and x=3 your zeros
