Answer:
side lengths are 6, 12, 12, 9, 9
Step-by-step explanation:
The perimeter is the sum of the lengths of the sides:
x + 2x + 2x + (x+3) + (x+3) = 48
7x +6 = 48 . . . . collect terms
7x = 42 . . . . . . .subtract 6
x = 6 . . . . . . . . . divide by 7
Substitute this value into the expressions for the side lengths:
x = 6
2x = 12
x+3 = 9
The side lengths are 6, 12, 12, 9, 9.
Answer:
y = x⁴ + x³ - 3x² + 5x + C
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Separable differential equations such as these ones can be solved by treating dy/dx as a ratio of differentials. Then move the dx with all the x terms and move the dy with all the y terms. After that, integrate both sides of the equation.

In general (understood that +C portions are still there),

Note that ∫dy = y since it is ∫1·dy = ∫y⁰ dy = y¹/(0+1) = y
For the right-hand side, we use the sum/difference rule for integrals, which says that
![\int \big[f(x) \pm g(x)\big]\, dx = \int f(x)\,dx \pm \int g(x) \, dx](https://tex.z-dn.net/?f=%5Cint%20%5Cbig%5Bf%28x%29%20%5Cpm%20g%28x%29%5Cbig%5D%5C%2C%20dx%20%3D%20%5Cint%20f%28x%29%5C%2Cdx%20%5Cpm%20%5Cint%20g%28x%29%20%5C%2C%20dx)
Applying these concepts:

The answer is y = x⁴ + x³ - 3x² + 5x + C
You move to the left since you are multiplying
It can be either 1.4 or 1.3 or your looking to your nearest 5th
Answer:
The correct answer is B = 15.9
Step-by-step explanation:
h = 27 cos 54 = 15.9