Mathematics Middle School

Circumference (rounding)

Answers

Answer 1

Answer:

Step-by-step explanation:

13 cm × 3.14 ( pi )

will give you

40.82 = 41

Answer 2

Answer:

40.8 cm²

Step-by-step explanation:

Use the equation C=2πr to solve

Find the values needed. C=2π·6.5 (radius is half of diameter)Solve your equation. 40.84=2π·6.5Round. 40.84≈40.8

Related Questions

Math Please Hurry Im smooth brain

Answers

Answer:

see below

Step-by-step explanation:

1. yes

2. no, 4.82 x 10^4

3, no, 9.9 x 10^-4

4. no, 3.6 x 10^6

5. yes

6. no, 7.8 x 10^-4

1 yes
2 no
3 no
4 no
5 yes

please help
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im just tryna fill space for the 20 required character in a question please help

Answers

Answer:

125.6m^2

Step-by-step explanation:

Let R be the greater radius and r be the smaller radius

Area of the sidewalk = R^2 - r^2 - This can be the expression

= 3.14

=(R^2-r^2)

=(11^2-9^2)

=(121-81)

= 40

= 3.14 x 40

A coin is tossed at the same time this spinner is spun

Answers

Answer:

a. heads tails

/ / / / / / / /

1 2 3 4 1 2 3 4

b. there are a total of 8 different outcomes.

1. 1:8

2. 2:8

3. 2:8

4. 2:8

5. 4:8

6. 3:8

Step-by-step explanation:

hope this helps. have a good day or night.

1. ) 1:8 2. ) 2:8 3. ) 2:8 4. ) 2:8 5.) 4:8 6. ) 3:8

The recycling center processes 35,000 pounds of recyclable materials. How many tons are processed?

Answers

Answer:

17.5 tons

I hope it's helps you

Answer:

17.5 tons

Step-by-step explanation:

1 ton = 2000 lb

35,000 lb * (1 ton)/(2000 lb) = 17.5 tons

Which of the following show a cross section of the pentagonal prism shown on the right? Select all the correct options.

Answers

A and D cause pentagonal prism have 5 sides. A and D both have 5 sides

Average winter temperatures in 45 states were recorded and divided by geographic region. Choose True or False for each statement below

Answers

This will be false because that’s not the average winter temperatures in 45 states

False please give me brainlest

the fraction 5/8 is located between what two fractions?
A. 1/4 and 2/5
B. 8/9 and 3/5
C. 1/2 and 2/3
D. 3/7 and 10/16

Answers

4/10 = 16/40
5/8 = 25/40
2/5 = 16/40

1/2 = 12/24
5/8 = 15/24
2/3 = 16/24

3/7 = 48/112
5/8 = 70/112
10/16 = 70/112

Find the slope of the line below using rise/run.

Answers

Answer:

3/1 = 3

Step-by-step explanation:

Two coordinates, 6/2 and 3/1 have a difference of 3/1, or 3.

Answer:

[tex]\frac{3}{1}[/tex]

Step-by-step explanation:

If you start at the point (0,0) and you rise 3 and run 1, there is your slope.

4 chef require 10 minutes to prepare 20 desserts. At this rate how many chefs are needed to prepare 75 desserts in 15 minutes?

PLS HELP! PLS TELL ME HOW YOU GOT THE ANSWER. THIS IS FOR MY COUSIN. SHE NEEDS HELP.

Answers

So right now, you need 4 chefs to prepare 20 deserts in 10 minutes (so the rate is one chef can make a dessert in 2 minutes) so if we think about this 7.5 desserts can be made by one chef in 15 minutes, BUT no one wants 1/2 of a dessert, so we must round this down to 7, and now we divide 75 by 7 to get 10.7, but we don’t want 0.7 of a cheap, so we round up to get 11 chefs can make 75 desserts in 15 minutes

The number of chefs that are needed to prepare 75 desserts in 15 minutes is; 10 chefs

According to the question;

4 chefs require 10minutes to prepare 20 desserts

For the scenario above; This means;

4 chefs are able to prepare 2 desserts/minute.

The question requires that we determine how many chefs are needed to prepare 75 desserts in 15 minutes.

In essence;

x chefs are able to prepare (75/15) = 5 desserts/minute.

Therefore;

x = (5 × 4)/2

x = 10 chefs

Ultimately, 10 chefs are needed to prepare 75 desserts in 15 minutes.

Answers

Twenty one feet long

I’m not sure but I think the answer is 21. Hope this can help, tell me if got it wrong I’m sorry if I got it wrong

HELP!!!!!!! WILL GIVE BRAINLIEST!!!!!!!!!!!

A teacher surveyed her class after they had taken a vocabulary test. Eighteen of the students claimed they had studied at least one hour for the test. The remaining twelve students admitted that they had not studied for the test at all. The test results (expressed as a percent) for the two groups are shown below.

Studied: 87, 100, 94, 79, 92, 100, 95, 83, 89, 99, 100, 91, 89, 95, 100, 93, 96, 83
Did Not Study: 82, 72, 45, 91, 58, 83, 65, 87, 90, 77, 73, 89

Part 1: Calculate the mean of the group that did not study, rounded to the nearest tenth.
Part 2: Calculate the mean absolute deviation of the group that did not study, rounded to the nearest tenth.
Part 3: How many of the scores (from the group that did not study) are more than two mean absolute deviations from the mean?

Answers

Answer:

Didn't study: 76%

Mean absolute deviation: 11.2

Step-by-step explanation:

To find the mean, add all the scores from the people who didn't study and divide them by 12 (the total number of students who didn't study). You will get 76%To find the MAD, use the formula for MADTo answer the third, line them up in order. 45, 58, 65, 72, 73, 77, 82, 83, 87, 89, 90, 91. MAD is the average difference between the numbers. So, to find this answer, subtract two of the MAD's from the mean of 76%. 76-22.4 = 53.6. So, only one is more than two MAD's away from the mean of 76%.

92.5 is the answer for part 1

A box of popcorn is 3 inches wide, 4 inches long, and 6 inches high. The box is half empty. What is the volume of popcorn left in the box?

Answers

Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

Find the area of the trapezoid

Answers

Answer:

Please the attached file for the answer. I hope that helps

It’s 40.5 :))) hope this helps

I need help ASAPP, I did the graph for part b for number 7 but part A and part C I don’t understand.
I need help with numbers 1,2,3,4,5,6, 7 part A and 7 part C. NO LINKS!!!! PLEASE HELP I WILL GIVE BRAINIEST!

Answers

1. what you have is correct

2. (6,6)

3. (-3, -5)

4. A' B'

5. C'

6. the original image was translated 6 units down and 9 units to the left

7. Vertex P is translated 8 units down and 2 units to the right

so so sorry, but i have another one~ in this, the numbers can be used only once

Answers

Answer:

1 + 2 + 3 + 4 + 5 + 9=24

10 + 9 + 8 + 2 + 1 + 6=36

Step-by-step explanation:

When you mean you can only use the numbers once do you mean you can't use it twice on the same one or you can't use the number after you have used it on one of them?

What type of function is described by the equation y=3+x?

Answers

It’s D, I graphed on a calculator and the line was straight

D because x doesn’t have any other exponents

Other Questions

please help me. Will mark u brainlyist.... Please don't put a randome answer if u don't know. You are analyzing two assets: collectible LEGO sets, and stock of Apple. In the last 5 years, LEGOs have had an annual volatility of 5%, annual return of 6%, and a CAPM beta (the correlation coefficient between the asset and the market risk-premium) of 1.6. Apple has had an annual volatility of 10%, an annual return of 8%, and a CAPM beta of 1.2. Is the following statement true or false? According to CAPM, Apple has a higher expected return than LEGO. PLZ HELP! BRAINLIEST IS ON THE LINE!!!!!!!!!!!!!!!! What is the theoretical probability that the spinner below will land on 6 if someone spins it 48 times? A 140 g tennis ball travelling 30 east of north at 15 m/s is struck by a tennis racquet, giving it a velocity of 25 m/s, west. What are the magnitude and direction of the impulse given to the ball? Include a labelled diagram. A farmer wants to know the effect of using various amounts of fertilizer in relation to the yield of his crops. Be subdivided a portion of his land into 10 separate but essentially equal plots. He divided the land so that all of the plots had equal exposure to sun, rain, and other environmental conditions. He randomly selected 2 of the 10 plots and spread 2 pounds of fertilizer over each of them. Then he randomly selected 2 of the remaining plots and spread 3 pounds of fertilizer over each of them. He continued with the last sets of plots in the same manner, spreading 4, then 5, then 6 pounds of fertilizer over each of them. Below is a computer output for linear regression of amount of fertilizer versus yield for the 10 plots of land.Predictor Coef SE Coef T PConstant 10.100 0.7973 12.67 0.000Fertiz 1.150 0.1879 6.12 0.000Required:What is the equation of the least squares regression line from this sample? -2 log5 (7x) = 2........ please help me solve 8x+2y=32 and 10x-5y=-20its solve by subsitution please include steps and answers Identify the area of the figure shown. Explain the difference in how the authors of "Stop feeding wild birds" and "For the Birds" support their arguments about humans feeding birds. A number is added to of itself.If the same number is doubled,write down the final expression. Which fractions are equivalent to the fraction below? Check all that apply.9/21A.3/22B.18/42C.3/7D.3/28 Question 14 (2 points)A series of organisms listed in a way that shows which is a food source for another iscalled a(n)Awhile an)is made up of multiple connected energy paths in an ecosystem. A hotel is part of what industry?A.ServiceB.WholesalingC.SubcontractingD.CottagePlease select the best answer from the choices providedABCD Invasion in your own words sentence multiplying and simplify radicals! if u get it right Ill give brainliest (show work pls!!!) 4 chef require 10 minutes to prepare 20 desserts. At this rate how many chefs are needed to prepare 75 desserts in 15 minutes?PLS HELP! PLS TELL ME HOW YOU GOT THE ANSWER. THIS IS FOR MY COUSIN. SHE NEEDS HELP. Examine the figure of two parallel lines cut by a transversal.What is the value of x? Help due in 10 minutes 1.What is the Kinetic energy of a 3 kg object moving at 4 m/s?Plz help Ill give points