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Answer:
21. 3x^2 +7x
22. 6x^3 +3x
Step-by-step explanation:
21. The perimeter is the sum of the side lengths.
P = (x^2 +3x +1) +(4x -1) +(2x^2)
P = x^2(1 +2) +x(3 +4) +(1 -1) . . . . combine like terms
P = 3x^2 +7x
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22. The area is the product of the dimensions.
A = (3x)(2x^2 +1)
A = 6x^3 +3x . . . . . use the distributive property
Answer and Step-by-step explanation:
Remember the formula for calculating volume is:
Volume = Area by height
V = A X h.
For a triangle the area is calculated using the formula:
Area = half of base by altitude
A = 0.5 X b X a.
So to calculate the volume of a triangular prism, the formula is:
V = 0.5 X b X a X h.
If a it's by a whole number you just multiply it by the numerator
And if there are two mixed numbers you multiplyboth by the denominator
And the numerator
Answer:
f' (n)=9
Step-by-step explanation:
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