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Fynjy0 [20]
2 years ago
9

Find a so that the point (-1,5) is on the graph of f(x)=ax2+1

Mathematics
1 answer:
sasho [114]2 years ago
7 0

Step-by-step explanation:

to solve for a,

f(-1) = 5

a(-1)^2 + 1 = 5

a + 1 = 5, so a=4

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The circumference of a redwood tree trunk is 16π ft, and it is 100 ft tall. What is the approximate volume of the redwood tree t
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Answer:

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Step-by-step explanation:

concept =

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_____________________________________

shape of  redwood tree can be taken as cylindrical

given

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Thus, radius is 8 feet

Therefore volume of  redwood tree = πr^2l = π8^2*100 = π*64*100

volume of  redwood tree =6400 π ft^3

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