A^2 -121 = a^2 -11^2 = (a-11)(a+11)
so the second choice is right sure
Answer:
![1,840\ yd](https://tex.z-dn.net/?f=1%2C840%5C%20yd)
Step-by-step explanation:
step 1
Find out the perimeter of a rectangular soccer field
The perimeter of a rectangle is equal to
![P=2(L+W)](https://tex.z-dn.net/?f=P%3D2%28L%2BW%29)
we have
![L=130\ yd\\W=100\ yd](https://tex.z-dn.net/?f=L%3D130%5C%20yd%5C%5CW%3D100%5C%20yd)
substitute the values
![P=2(130+100)](https://tex.z-dn.net/?f=P%3D2%28130%2B100%29)
![P=460\ yd](https://tex.z-dn.net/?f=P%3D460%5C%20yd)
step 2
we know that
Jovan goes around the field four times
so
To find out the number of yards that he runs, multiply the perimeter by four.
![460(4)=1,840\ yd](https://tex.z-dn.net/?f=460%284%29%3D1%2C840%5C%20yd)
the answer is 15 im pretty sure
Answer:
40 cm²
Step-by-step explanation:
A = 2(lw + lh + wh)
= 2(4×2 + 4×2 + 2×2)
= 2(8 + 8 + 4)
= 2×20
= 40 cm²
Answer:
X is 10.6
Step-by-step explanation:
Kono Dio Da!!!