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fiasKO [112]
3 years ago
8

Over the last three evenings, Lena received a total of 111 phone calls at the call center. The third evening, she received 3 tim

es as many calls as the first evening. The second evening, she received 9 fewer calls than the first evening. How many phone calls did she receive each evening?
Mathematics
1 answer:
Alchen [17]3 years ago
3 0

Answer:

Lena famous or sum y she getting sm calls?!

Step-by-step explanation:

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we know its diameter is 12, thus its radius must be half that, or 6.

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3 0
3 years ago
If 0 < b ≤ 90 and cos(11b + 2) = sin(12b − 4), what is the value of b?
Elza [17]

Answer:

b = 4

Step-by-step explanation:

The given expression is

Cos (11b + 2) = Sin (12b - 4)

Since, Sin(θ) = Cos(90 - θ)

Therefore, Cos (11b + 2) = Cos [90 - (12b - 4)]

Where 0 < b ≤ 90°

11b + 2 = 90 - (12b - 4)

11b + 2 = 94 - 12b

11b + 12b + 2 = 94 - 12b + 12b

11b + 12b + 2 - 2 = 94 - 2

23b = 92

\frac{23b}{23}=\frac{92}{23}

b = 4

Therefore, b = 4 will be the answer.

7 0
3 years ago
Read 2 more answers
The area of a rectangle room is 750 square feet. The width of the room is 5 feet less than the length of the room. Which equatio
olga_2 [115]
By definition, the area of a rectangle is given by:
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 Substituting values we have:
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 Rewriting we have:
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An equation that can be used to solve for And the length of the room is:
 
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Answer:

Yes he will have enough money to pay for the gift, and with that said, he will pay $23.10.

Step-by-step explanation:

All you have to do here is multiply 22 by 5%, which will get you 1.1, then you just add the 1.1 onto the $22 and you will have the total amount he has to pay.

6 0
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Salsk061 [2.6K]

Answer:

There are two points of intersection

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Step-by-step explanation:

4 0
3 years ago
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