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3 years ago

Use the law of cosines to solve the triangle. a=45,b=30,c=72

Mathematics

1 answer:

Novosadov [1.4K]3 years ago

7 0

Sides:
a= 45 m
b= 30 m
c= 72 m

angles:
a = 20.0183 degrees
b = 13.1919 degrees
c= 146.79 degrees

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Answer:

Step-by-step explanation:

Profit is revenue minus cost.

P(x) = R(x) − C(x)

P(x) = 28x − (7x + 117)

P(x) = 21x − 117

When the profit is 0, the value of x is:

0 = 21x − 117

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Rounding up to the nearest integer, the company starts to turn a profit at 6 milkshakes.

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3 years ago

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Answer:

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Step-by-step explanation:

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3 years ago

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Answer: b. 1.94

Step-by-step explanation:

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$\sigma=\sqrt{np(1-p)}$

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The number of offices she visited = 20

We assume that the binomial is an appropriate model for the number of offices that make a purchase.

Then, to find the distance of the possible number of sales Tina could observe from the overall mean number of sales we find standard deviation.

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Hence, the correct answer is option (b).

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3 years ago

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Answer:

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Step-by-step explanation:

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