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docker41 [41]
3 years ago
12

Which is the total surface area of this cone?

Mathematics
1 answer:
disa [49]3 years ago
3 0

Answer:

  A.  219.80 square centimeters

Step-by-step explanation:

The total surface area is given by ...

  A = πr(r+s)

where r is the radius and s is the slant height. Filling in the given numbers, you get ...

  A = 3.14·(5 cm)·(5 cm +9 cm) = 219.80 cm²

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Step-by-step explanation:

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Factoring Trinomials
alexandr402 [8]
25 a² + 20 ab +  4 b²

for formula a^x+bx^ky^k+cy ^{2k } find  u,v such that: u.v = a

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Refine:

(2b+5a)^2

hope this helps!.


3 0
3 years ago
The manager of an automobile dealership is considering a new bonus plan in order to increase sales. Currently, the mean sales ra
monitta

Answer:

H0: mu = 5

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Step-by-step explanation:

A null hypothesis is a statement from a population parameter which is either rejected or accepted (fail to reject) upon testing.

It is expressed using the equality sign.

An alternate hypothesis is also a statement from a population parameter which negates the null hypothesis and is accepted if the null hypothesis is rejected.

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