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natulia [17]
3 years ago
5

How much will it cost to print a circular sign with a radius of 1.1 feet if the printing company charges $27 per square foot? us

e a = πr2, where π is approximately 3.14. (round your answer to the nearest cent.)?
Mathematics
1 answer:
Serga [27]3 years ago
3 0

Answer: To find the cost to print a circular frame, we need to first find the area of circle.

Given: r=1.1

We know that:

Area of circle =\pi \times r^{2}

                       =3.14 \times 1.1^{2}

                       =3.7994

Also we are given cost per square foot is $27

Therefore, the cost to print a circular sign with a radius of 1.1 feet is:

3.7994 \times 27= 102.58  or $102.58


                               

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Hatshy [7]

Answer:

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Correct choice is B

7 0
2 years ago
Idk what it means.why is it not reasonable to say that 4.23 is less than 4.135
RSB [31]

it is unreasonable because 4.23 is bigger than 4.135! Look at the 10s place - 1 is smaller than 2, and everything afterwards is irrelevant. There could be as many zeros or any combination of numbers you want, but as long as that tens place is larger (2 vs 1), than it's not reasonable to say 4.2 is smaller!!

3 0
3 years ago
PLEASE ANSWER ASAP What is the solution of each proportion?
HACTEHA [7]
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6 0
3 years ago
The ratio of grade 7's to grade 8's is 5:3. If there
Greeley [361]

Answer:

240 students

Step-by-step explanation:

Grade 7 : Grade 8 = 5 : 3

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x = 90÷3

x = 30

Total students = 5x + 3x = 8x = 8 * 30 = 240

5 0
3 years ago
The amount of time it takes Isabella to wait for the bus is continuous and uniformly distributed between 3 minutes and 15 minute
madam [21]

Answer:

33.33% probability that it takes Isabella more than 11 minutes to wait for the bus

Step-by-step explanation:

An uniform probability is a case of probability in which each outcome is equally as likely.

For this situation, we have a lower limit of the distribution that we call a and an upper limit that we call b.

The probability that we find a value X lower than x is given by the following formula.

P(X \leq x) = \frac{x - a}{b-a}

For this problem, we have that:

Uniformly distributed between 3 minutes and 15 minutes:

So a = 3, b = 15

What is the probability that it takes Isabella more than 11 minutes to wait for the bus?

Either she has to wait 11 or less minutes for the bus, or she has to wait more than 11 minutes. The sum of these probabilities is 1. So

P(X \leq 11) + P(X > 11) = 1

We want P(X > 11). So

P(X > 11) = 1 - P(X \leq 11) = 1 - \frac{11 - 3}{15 - 3} = 0.3333

33.33% probability that it takes Isabella more than 11 minutes to wait for the bus

4 0
3 years ago
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