Answer:
p = -8.4
Step-by-step explanation:
Answer:
84 in . . . or . . . 7 ft
Step-by-step explanation:
The given scale is the ratio of drawing size to real size.
1/12 = (7 in)/(actual height)
Multiplying this equation by 12(actual height) gives ...
actual height = 12·7 in
actual height = 84 in = 7 ft
Answer:
0.054
Step-by-step explanation:
Using the compound formula A=P(1+r/n)^nt we can plug in the numbers we know. A being the total, P the initial amount, n is the number of compounds in a year, and t is the number of years passing. So 10300= 4900(1+ r/2)^2(14). We have to isolate r in order to find the rate. We can divide both sides by 4900, giving us 103/49= (1+ r/2)^28. Then we take the 28 square root from both sides. 1.02689= 1 + r/2. Subtract 1 from both sides. 0.02689= r/2. Then multiply both sides by two. r= 0.054.
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
Answer:
12.5
Step-by-step explanation:
