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
x = 32
Explanation : To answer this you want to get the x by itself. Subtract 4 from 20 which would make the equation 1/2x = 16. Next, divide 1/2 by 1/2x and 16. 1/2 and 1/2 cancel each other out and 1/2 divided by 16 is 32 hence x = 32.
Yes, any number that you can divide 72 by without creating an irrational number answer is a factor of 72. Therefore, since when we divide 72 by 2, we get 36, which is a whole number and therefore satisfies the criteria.
All 4 would be good but pick the one you think is whright
Answer should be 525.
Work:
Divide the 350 by the 2 parts from 2/3 you should get 175.
The number 175 represents 1/3 so all you have to do now is add 350 by 175.