Answer:
The first one : x^2 - 8x + 15 sq ft
Step-by-step explanation:
To find the ares you need to multipy L and W : (x - 3) x ( x - 5)
(x - 3) x ( x - 5)
(x times x) - ( 3x + 5x) + ( 5 x 3)
=x^2 - 8x + 15
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Answer: $41.24
Step-by-step explanation: Hope this helped.
With all trig functions, the period can be calculated with the equation PB = 2π.
P = period
B = anything in the tangent part of the equation except the x. (in this case, it would be 6)
When we plug in 6 for B, we get 6P = 2π.
Divide both sides by 6 and you get P = 2π / 6
OR
P = π/3
First you distribute the -5 into 4x and -7 and get the equation 15-20x+35=5. Next you combine like terms, 15 and 35 and get 50-20x=5. Next you subtract 50 from 5 to get 20x by itself and get 20x=-45. Finally you divide -45 and 20 and get x=9/4 or 2.25
15 more paper airplanes are needed
