A teacher asks four students to determine the area of a circle with a circumference of 50.24 feet. The table shows the students’ responses.
Which student determines the area of the circle correctly? (Use 3.14 as an approximation of pi.)
Answers
Student 3 determines the area of the circle correctly.
What are the circumference and diameter of a circle?The circumference of a circle is the distance around the circle which is 2πr.
The diameter of a circle is the largest chord that passes through the center of a circle it is 2r.
Given, A circle has a circumference of 50.24 feet.
We know the circumference of a circle is 2πr.
Therefore, 2πr = 50.24.
πr = 50.24/2.
πr = 25.12.
r = 25.12/3.14.
r = 8 feet.
We also know the area of a circle is πr².
= π(8)² square feet.
= 200.96 square feet.
Student 3 determines the area correctly.
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Related Questions
I need help with question please and thank you
Answers
Hello here is your answer!
a=4
If this helped please mark brainlist!
Answer:
A=4
Step-by-step explanation:
7=4+3
PlEASE help so confused?
THANKS
Answers
Answer:
0.25
Step-by-step explanation:
3 ÷ 12 = 0.25
5 ÷ 20 = 0.25
Hope this helps, thank you !!
Answer:
3 ÷ 12 = 0.25
5 ÷ 20 = 0.25
A garden hose fills a 2-gallon bucket in 5 seconds.
The number of gallons, g, is proportional to the number of seconds, t, that the water is running.
Which equation represents the relationship between g and t? Select all that apply.
A. g = 0.4t
B. t = 0.4g
C. g = 2.5t
D. t = 2.5g
E. g = 25t
Answers
Answer:
a c d
Step-by-step explanation:
The original cost of a makeup set was $30. After sales tax, Peter paid a total of $31.71. What is the percent sales tax rate?
Answers
Answer:
5.7
Step-by-step explanation:
unrelated, I love how peter is open about buying makeup. i feel as if the gender roles are garbage. #YasQueen #GoPeter #PeterIsCool #MakeupCanBeForBoysToo <3
(also peter could totally be a girl and I am misgendered a person)
Answer:
The answer is 5.7%
Step-by-step explanation:
So Peter bought the makeup set that was $30.
and had to pay $1.71.
1.71 of 30.
So you would divide 1.71 with 30.
(1.71/30)
equaling .057
Then you would multiply by 100 because there is 100% total, and so multiplying that you would move the decimal two times to the right, getting 5.7
hope this helped B)
Which sentence is incorrect? A. -4 > -7 B. 5/2 = 2.5 C. -2.5<-3 D. 2/5 = -0.4
Answers
Answer:
C -2.5<-3
Step-by-step explanation:
since -3 is lower counting wise with negatives the higher the negative the number the more likely its going to be lesser than the other
Two schools are 646 meters from each other. On a map, the two schools are 8.5 centimeters apart.
What scale is the map using?
Answers
Answer:
5,491
step-step explanation:
multiply 646x8.5
Answer:
1 cm = 76 meters
Step-by-step explanation:
[tex]\frac{646m}{8.5cm} =\frac{x}{1cm}[/tex]
Find x.
x = 76m
1cm = 76meters
good luck, i hope this helps :)
Write the ratio as a fraction in simplest form and explain it's meaning.
There are 16 girls and 20 boys in the school band. What is the ratio of girls to boys?
The ratio in simplest form is Blank 1. For every Blank 2 girls there are Blank 3 boys in the band.
Answers
For every 4 girls, there are 5 boys.
A punch recipe calls for 5 cups of grape juice for every 3 cups of mango juice. Select all the statements about the recipe that are correct.
A. The ratio of grape juice to mango juice is 5:2.
B. The ratio of mango juice to punch is 3:8.
C.The ratio of mango juice to grape juice is 3 to 5.
D. There are 5 cups of grape juice for every 8 cups of punch.
Answers
Answer:
B, C, and D.
Step-by-step explanation:
Calculate the total surface area of the triangular prism below.
What is the total surface area?
288 cm²
32 cm²
320 cm²
352 cm²
Answers
Explanation: I just looked
Please HELP!!! 12 Points
Answers
Answer:
it is Going to be A
Step-by-step explanation:
The price of an item has been reduced by 65%. The original price was $55. Find the price now
Answers
write a real word problem for the algebraic expression m - 9
Answers
nine subracte from a number
Answer:
Kelly earns money from babysitting. She saw a cute hat at the mall. She decided to buy the hat for $9. Write an expression that represents the amount of money Kelly has left.
For every 2 cars you wash, your friend washes 3 cars. You wash a total of 8 cars. Complete the table to show the number of cars your friend washes.
Answers
Answer:
If you wash eight your friend would’ve washed 12 2:3 as 8:12
Step-by-step explanation:
Write a mathematical equation that fits each word problem
Answer if you know
PLS DO NOT COPY OTHER PEOPLE'S ANSWERS
thank you UwU
Answers
39.50-33.75
5.75/0.25
Answer 23
Answer:
Below
Step-by-step explanation:
1. (6.75x5)+ (x x 0.25)=39.50
2. 10.00+ (17 x 2.50)= What her sponsor will pay
If it is two seperate sponsors:
17x2.50 - 10.00= How much difference in what the sponsors pay
The diameter of the face-off circle on an ice-hockey rink is 30 feet. Find its area.
Answers
Answer:
The area is 706.86 ft sq
Answer:
706.86 sq ft. (or 706.5 sq ft if 3.14 is used as pi)
Step-by-step explanation:
the formula for the area of a circle is πr2^. We know our diameter is 30 ft, and since radius is half of the diameter, that means our radius is 15 ft. Now we plug this into the formula, which would be 3.14x15^2. type this into the calculator to get our area of 706.5 sq ft.
hope this helped!!!
Write a fraction, a decimal, and a percent that sum to 1 or 100%.
Answers
Answer:
Fraction: 1/1, 2/2, 3/3, 4/4, 5/5, 6/6, 7/7, 8/8, 9/9, 10/10 etc.
Decimal: 1.00
Percent: 100%
Answer:
Fraction-Decimal-Percent
Step-by-step explanation:
36/100 (Fraction) - 0.36 (Decimal) - 36% (Percent)Hope it helps! :)what is the circumference of a circle with a radius of 6. (Its not 37.7. )
Answers
Answer:
C≈37.7
r Radius
Solution
C=2πr=2·π·6≈37.69911
Dora is baking a pie. The diameter of the pie is 9 inches. What is the area of the pie? Use 3.14 for pi and round your answer to the nearest tenth.
Answers
Answer:
63.62
Step-by-step explanation:
Enter an equation for the word sentence. Use the variable c for the cost.
Three times the cost is $18.
Answers
Answer
3x6=18 or 3c=18
Step-by-step explanation:
I don't know in what level of mathematics you're in. It depends...
c= cost c=6
Answer:
3c=18
Step-by-step explanation:
3c=18
A measure below of three angles of a triangle is shown below. What is the measure of x?
Answers
38+x+x+2= 180
Collect like terms
40 +2x=180
Bring 40 to the other side and subtract
2x=140
Divide by 2 to get x alone
X=70
A cab company charges $3 per cab ride, plus an additional $1 per mile driven. How long is a cab ride that costs $13?
Answers
Answer:
10 miles
Step-by-step explanation:
3+1x=13
Minus 3 from both sides.
3-3+1x=13-3
1x=10
Then divide both sides by 1.
1x/1=10/1
x=10
Marian is making bread, she has 2 4/7 pounds of flour in her pantry. When making the bread, she will use ⅓ of the flour in the pantry. The amount of salt in the recipe is ⅓ of the amount of flour in the recipe. How much salt will Marian need to make bread?
Answers
Answer:
1/9 im pretty sure
Step-by-step explanation:
Which of the following expressions give the distance between the endpoints of the segment shown on the number line below? Select all that apply
Questions:
A)|−35−(−45)|
B)|−35−45|
C)−35−45
D)|35−45|
E)|45−(−35)
Answers
HELP PLEASE!! A company makes triangular plates for individual slices of pizza. For each plate, the base is 5 inches and the height is 16 inches. The area of the top of the plate is ____ inches squared.
Answers
Answer:
The answer is 80
Rashida is building a model of her city's downtown area. She is constructing part of an office building, as shown below. Each cube has a length of centimeter.
Based on the model, the length of the building is
centimeter.
The width of the model building is
centimeter.
The height of the model building is
centimeter.
The volume of the model building is
cubic centimeter.
Answers
Based on the model, we find the dimensions of the cube. The length of the model building is 2/3 centimeter. The width of the model building is 1/3 centimeter. The height of the model building is 1/2 centimeter. The volume of the model building is 1/9 cubic centimeter.
What are dimensions of a cube?A cube is 3- dimensional shape with 6 equal sides, 6 faces, and 6 vertices in geometry. Each face of a cube is a square. In 3 – dimension, the cube’s sides are; the length, width, and height. Sides of a cube are all equal i.e. Length = Width = Height = a.
The length = breadth = height (of one cube) = 1/6 cm
The length of the model consist of 4 cubes.
Length of model building = 4 * 1/6 cm = 2/3 cm
The width of the model consist of 2 cubes.
Width of model building = 2 * 1/6 cm = 1/3 cm
The height of the model consist of 3 cubes.
Height of model building = 3 * 1/6 cm = 1/2 cm
Volume of the model (cuboid) =
= Length * breadth * height
= [tex]\frac{2}{3} * \frac{1}{3}*\frac{1}{2} = \frac{1}{9}[/tex]
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What type of association does the graph show between x and y? (4 points)
a. Linear positive association
b. Nonlinear positive association
Selected:c. Linear negative associationThis answer is incorrect.
d. Nonlinear negative association
Answers
Answer:
A
Step-by-step explanation:
since the the graph displays a straight line, it is considered linear. If the direction goes in an upward motion, meaning the value on the y-axis increases with the x-axis it is positive.
Giving brainliest!!!!!!!!!!!!!
Answers
Answer:
I think its c, but I'm not sure
helppp plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz
Answers
Answer:
Jacob served 16 quarts of juice.
Step-by-step explanation:
Please help it is due in a few mintues
Answers
i hate doing inequalities so help me
Answers
Answer:
2 goes to the first one, 3 goes to the last and 5 goes to the middle one
Step-by-step explanation:
Answers:
1. y<-6
2.y<13
3.y>6
hope this helps! :)