1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
e-lub [12.9K]
3 years ago
9

HELP PLEASE. A pizza shop charges customers based on the area of the pizza they order. The cost of a pizza in dollars can be rep

resented
by so) - 0.1 ser? where r is the radius of the pizza in inches.
What is the diameter of a pizza that costs $26.32? Round to the nearest hundredth.
o 9.15 inches
O 18.30 inches
O 83.72 inches
o 217.63 inches

Mathematics
2 answers:
Sever21 [200]3 years ago
8 0

Answer:

<u>The correct answer is B. 18.30 inches</u>

Step-by-step explanation:

1. Let's review the information provided to us to answer the question correctly:

<u> </u>Cost of the pizza = $ 0.10 * π * r², where r = radius of the pizza in inches<u>  </u>

2. What is the diameter of a pizza that costs $26.32 ?  

Let's recall the formula of the area of a circle, in this case, the area of the pizza:  

Area = π * r², therefore the constant 0.10 that is multiplying the area of the pizza, is the cost of the pizza in dollars per square inch.

<u> </u>Cost of the pizza = $ 0.10 * π * r²

<u>Replacing with the values we have:</u>

26.32 = 0.10 * 3.1416 *  r²

26.32 = 0.31416 * r²

r² = 26.32/0.31416

r² = 83.78

r = √ 83.78

r = 9.15 inches ⇒ d = 9.15 * 2 = 18.30

<u>The correct answer is B. 18.30 inches</u>

san4es73 [151]3 years ago
4 0

For this case we have that the cost of each pizza is given by the following function:

S (r) = 0.1 \pi * r ^ 2

Where:

r: It's the radius of the pizza

IF a pizza cost $26.32 we have:

26.32 = 0.1 \pi * r ^ 2

We cleared the radius, using \pi = 3.14:

\frac {26.32} {0.1} = \pi * r ^ 2\\263.2 = 3.14r ^ 2\\\frac {263.2} {3.14} = r ^ 2\\83.82 = r ^ 2\\r = \pm \sqrt {83.82}

We choose the positive value:

r = 9.15

So, the radius of the pizza is 9.16 \ in

Then, the diameter is: 2r = 2 * 9.15 = 18.30 \ in

Finally, the diameter of the pizza is:18.30 \ in

Answer:

Option B

You might be interested in
Find the area of the triangle below.<br>Be sure to include the correct unit in your answer.<br><br>​
OleMash [197]

Answer:

area of triangle= 1/2*h*b

= 1/2*6*16

=3*16

= 48 yd²

This is your answer. If I'm right so,

Please mark me as brainliest. thanks!!!

5 0
3 years ago
What is a percentage increase of 19.50 to 22.50
Inga [223]
To find the <span>percentaje</span> we need to <span>divided</span> the <span>tataol</span> by the amount we end up having.

22.50/19.50=1.15 
<span>then</span> we multiply by 100
115% 
Then to find the <span>percentaje</span> increase we subtract
115%-100= 15%
So it has an <span>increament</span> of 15%
4 0
3 years ago
What is the GCF of 28x3 and 28x5?
Sergio039 [100]

Answer:

28x^3

Step-by-step explanation:

8 0
3 years ago
Need help with logic
erma4kov [3.2K]

Gosh do you have logic

7 0
3 years ago
Select the correct answer.
Marrrta [24]

\text{Molly used the addition property of equality}\\\\\text{In the equation shown in the question, you can see that Molly is trying}\\\text{to find the value of "d"}\\\\\text{In order to do this, she must get the "d" variable by itself}\\\\\text{To do this, she adds "3d" to both sides to get the "d" variable on one side}\\\\

5 0
3 years ago
Other questions:
  • Answer for B and C and explanation if possible
    9·2 answers
  • 30 points
    13·1 answer
  • Round 36,700 to nearest 100
    8·1 answer
  • Please help me with just this one question.<br> 7th grade math
    11·1 answer
  • a political candidate hears that 65% of the voters are for him in the polls, up 40% since the last poll what percentage of voter
    13·1 answer
  • A teacher attempts to make a number cube unfair by drilling out the spots on one side and inserting lead weights. to determine i
    9·2 answers
  • My sister asks you guys for help once more!<br> What is the value of 7/10 - 3/6?
    15·2 answers
  • Classify each as a minor arc, major arc, or semicircle!!!!!!!!!!!!
    15·1 answer
  • PLS ANSWER IM MARKING BRAINLEST IF YOU CORRECT
    10·2 answers
  • Whats the correct answer answer asap for brainlist
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!