Answer:
i did I am and i ooooooooooopp
Step-by-step explanation:
Answer:
h²=b²+p²
x²= 9²+23²
x²= 81+529
<em>x²</em><em>=</em><em>6</em><em>1</em><em>0</em>
<em>X=</em><em> </em><em>√</em><em>6</em><em>1</em><em>0</em>
A=bh/2, h=b-5 so
A=(b/2)(b-5)
A=(b^2-5b)/2 and A=42 so:
(b^2-5b)/2=42
b^2-5b=84
b^2-5b-84=0
b^2-12b+7b-84=0
b(b-12)+7(b-12)=0
(b+7)(b-12)=0 and since b>0
b=12m
1000 thousands equal one million
Same height when both equations are equal
-16x^2 + 74x + 9 = -16x^2 + 82x
82x - 74x = 9
8x = 9
x = 9/8
x = 1.125
x = 1.13 ---->rounded to nearest hundredths of seconds
answer
1.13 seconds
