Answer:
3
Step-by-step explanation:
Answer:
x = 2 sqrt(2) - 2 or x = -2 - 2 sqrt(2)
Step-by-step explanation:
Solve for x:
x^2 + 4 x = 4
Add 4 to both sides:
x^2 + 4 x + 4 = 8
Write the left hand side as a square:
(x + 2)^2 = 8
Take the square root of both sides:
x + 2 = 2 sqrt(2) or x + 2 = -2 sqrt(2)
Subtract 2 from both sides:
x = 2 sqrt(2) - 2 or x + 2 = -2 sqrt(2)
Subtract 2 from both sides:
Answer: x = 2 sqrt(2) - 2 or x = -2 - 2 sqrt(2)
Base=9
Height=10
A=90
I think
W R I T E T H E E Q U A T I O N
23 = X + (X+7)
23 = 2X + 7
16=2X
/2 /2
8=X
Girls = X+7
= 8+7
= 15
S O T H E R E A R E 1 5 G I R L S
