A rectangular prism has dimensions of 2x, 3x, and 5x. Write an expression for the total surface area of the prism.
1 answer:
Answer:
A = 62x^2
Step-by-step explanation:
This rect. prism has 6 faces, stemming from two each of the areas of the top, the end and the side of the prism.
top surface area: (2x)(3x) = 6x^2
end surface area: (2x)(5x) = 10x^2
side surface area: (3x)(5x) = 15x^2
Total surface area: A = 2(6x^2 + 10x^2 + 15x^2)
or: A = 2(31x^2) = 62x^2
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Its given that
We need to find t when d = 74
Therefore,
t(16t + 37) - 2(16t + 37) = 0
(t - 2)(16t + 37) = 0
t - 2 = 0 or 16t + 37 = 0
t couldn't be negative.
Therefore, t = 2
Hence, it will take 2 seconds for the object to travel 74 feet.
Answer:
2.22
Step-by-step explanation:
A 20 foot ladder is leaned against a wall. If the base of the ladder is 8 feet from the wall,how high up the wall will the ladder reach? so do 20^2 + 8^2=c2 so 20 times 20 is 400 +64 equals 464
3/x=36
