Answer:
87.5
Step-by-step explanation:
By completing the square,
y
=-14x^2+70x
=-14(x^2-5x)
=-14(x-5/2)^2+175/2
the max. height=175/2
i.e. 87.5
<h3>
Answer: x = 7</h3>
Work Shown:
Multiply 10.5 by 2/3 to get
10.5*2/3 = 21/3 = 7
Answer:
7
Step-by-step explanation:
2-(-5)
2 + 5 --- opposite
=7
1/4+5/12=3/12+5/12=8/12=4/6=2/3
they painted 2/3 of the fence
