Answer:
±2 sqrt(3) = x
Step-by-step explanation:
12 -x^2 =0
Add x^2 to each side
12 -x^2+x^2 =0+x^2
12 = x^2
Take the square root of each side
±sqrt(12) = sqrt(x^2)
We know that sqrt(ab) = sqrt(a) sqrt(b)
±sqrt(4*3) = sqrt(x^2)
±sqrt(4) * sqrt(3) = x
±2 sqrt(3) = x
Step-by-step explanation:
The hypotenuse of a right-angled triangle = 25 cm
One side is twice as long as the other.
Let the other side is x.
First side = 2x
Using Pythagoras theorem to find the lengths of the shorter sides.
So, the other side = 11.18 cm
First side = 2(11.18) = 22.36 cm
So, the lengths of the shorter sides are 11.18 cm and 22.36 cm.
Answer:
3 inches
Step-by-step explanation:
if she cut 3 inches off the length, that makes it 9 inches. the original rectangle was 2 inches longer. so subtract 2 from 9 and 7. she needs to have the width 7 inches.
it is 22.91 because you add all the sneakers and then after all that you add the tax
