Mathematics Middle School

Find the area of a circle with diameter 10 .
Use the value 3.14 for π , and do not round your answer.
Be sure to include the correct unit in your answer.

Answers

Answer 1
The answer is 78.54.
Find The Area Of A Circle With Diameter 10 .Use The Value 3.14 For , And Do Not Round Your Answer.Be

Related Questions

can someone please help me answer and please explain how you got your answer​

Answers

Answer:

11.6 km²

Step-by-step explanation:

Divided it into two shapes, a triangle and a rectangle. Then find the area for each. The triangle is 4 km long and 2.2 km wide. The rectangle is 1.8 km wide and 4 km long.Solve the area for the triangle. The equation l · w ÷ 2=A will help. So, the equation would be 4 · 2.2 ÷ 2=4.4Then, solve the area for the rectangle by using the equation l · w=A. 1.8 · 4=7.2Add them together. 4.4+7.2=11.6Final answer - 11.6 km²

The sweatshirt you purchased was on sale for $29.25, having been marked 35% off. What was the original price?

Answers

The answer is 19.0125
19.0125 this is yo answer I think or close

(I Need Help Please) Please Read all of it?
Jason wants 156 cupcakes for his party, Jason has already made 60 cocoa cupcakes, and 24 berry cupcakes. How many more cupcakes does Jason need to make?

Answers

Answer: 72 cupcakes

Step-by-step explanation:

Jason has already made 60 cocoa cupcakes and 24 berry cupcakes. In total, that is 84 cupcakes. He wants 156 cupcakes, so 84 is subtracted from 156, the answer is 72.

The answer is 72 ok? Ok

Can someone PLEASE help me solve these problems, I need them by 9:59pm.

Answers

For number 7 he could buy 14 candies if he bought the 9 peppermints if he doesn’t buy the peppermints he could buy 20 sour candies

Please answer asap (give explanation)

The inside of all new elevators must be wheelchair accessible. The minimum requirements are shown. The inside volume of an older elevator is 144 cubic feet. The base is a square and the height is 9 feet.

a. Explain why the older elevator does not meet the wheelchair requirements.

(please give explanation if solved, thanks)

Answers

Step-by-step explanation:

Elevator must be easily accessible in a public space (instead of, for example, a cramped hallway)Doors must remain fully open for at least three seconds.Call buttons are a minimum of 0.75 inches in diameter.Button heights must be centered 42 inches from the floor.

Calculating interests,plz help-

Answers

HELLOOOOOOOOOOOOOOOOOOOOOOOOOOOOO :D

Write a polynomial expression that has the following characteristics:

The polynomial expression is a binomial.
The polynomial expression has degree 4.
The leading coefficient is 7.

Answers

Answer:

7x^4+x^3 (or 7x^4 + some random term)

Step-by-step explanation:

Since the polynomial expression must be a binomial, it must have two terms.

Since the binomial must have a degree of 4, and the leading coefficient must be 7, then a possible binomail could be 7x^4+x^3 because you have two terms, 7x^4 and x^3 while the degree is 4 and the leading coefficient is 7.

SOMEONE HELP PLEASE I WIL GIVE BRAinlest could yu please help answer 1-9 and I would really be grateful if you explained how you did you please I really need help and please actually answer and don't just answer nonsense when you answer actually help cause nobody's going to help you if you do that to other people

Answers

Answer: For the first one, 12.5% chance

Step-by-step explanation:

The probability of flipping a coin and getting tails is 50%. Then, if you were to flip two coins and get both tails, you would have to divide the 50% by 2, which is equals to 25% of flipping two coins and getting them both tails.

So now we know...

Flipping one coin gives you 50% tails and 25% of flipping two coins and getting two tails

So now, we do it again with the third coin. We would divide the 25% by 2, which will get us to a 12.5% of getting all tails, or in fractions, 1/8

I’m not exactly sure about the other ones but I hope you found this one helpful!

1. It’s easiest to visualize if you write down all of the options that are possible when flipping a coin 3 times.
TTT
TTH
THT
THH
HHH
HHT
HTH
HTT
(i believe thats all of the options, if not adjust as needed)
but TTT is 1 out of the 8 possibilities, making the probability of getting three tails 1/8 or .125

2. There are two possibilities for getting a sum equal to three with two dice being rolled. Rolling a 1 and rolling a 2 or rolling a 2 and rolling a one.
You have 36 different combinations total, making your fraction 2/36

2/36 still needs to be simplified by dividing by two

your answer is 1/18 or .55555 repeating

3. There is no black section on the spinner so there is no way to land on a black section. The probability is 0

4. I believe this question is asking about the theoretical probability of flipping a coin, which is 1/2 or .5

5. You’ve got a theoretical probability of 3/6 or 1/2 chance to roll less than a four. If you roll the cube 24 times, you should expect to get 12 (half of 24) rolls less than four.

6. The probability of choosing a red marble is 5/30 or 1/6. The marbles are always replaced so your probability doesn’t change.

Noah pulls 60 marbles out and replaces them. 1/6 of those marbles should be red.

1/6 of 60 is 10

10 marbles should be red

7. There are 11 balls total. 5 of those are green (5/11), 3 of them are red (3/11), 2 of them are white (2/11), and 1 of the balls is orange (1/11).

The probability of choosing an orange ball (the least occurring) is 1/11 or .090909 repeating

8. Adrian has a 1/4 chance of being put in any singular section. He volunteers 20 times. We’re trying to figure out how many times he was put in either the cat or the reptile section.

If we add the probabilities of the cat and reptile assignment, you get 1/2.
1/2 of 20 is 10

Keeping the probabilities separate and adding the occurrences together at the end will give you the same answer.
1/4 of 20 is 5
Add another 1/4, which is 5+5 and it’s 10

9. Let’s label the four sections on the spinner 1, 2, 3, and 4. The outcome of the coin flip will either be heads or tails.

The combinations could be:

1 H
2 H
3 H
4 H
1 T
2 T
3 T
4 T

That totals to 8 possible outcomes.

You can multiply the two outcome numbers together to achieve the the same answer:

2(4) = 8

If 47 Mph was a unit rate, how many hours would it take to travel 1 Mph?

Answers

Answer: um i think you asked the question wrong. But ok.

Step-by-step explanation:

= 47 miles per hour

This is a fraction equal to

47 miles ÷ 1 hours

We want a unit rate where

1 is in the denominator,

so we divide top and bottom by 1

47 miles ÷ 1

1 hours ÷ 1

=  

47 miles

1 hour

=  

47 miles

hour

= 47 miles per hour

Answer:

It would take you a total of .021 of an hour to get there.

Step-by-step explanation:

So, you are asking if 47 mph was a unit rate, how long would it take to travel 1 mile? Ok, so you would convert this to a unit rate, which would be 1 hour.47 miles because you are trying to get the 47 to a 1. Next, you will divide both numbers by 47, giving you .0212765957/1. This rounds to .021/1.

Hope this helps! :)

David is saving money to but a part for his motorcycle. He has already saved some money and will continue saving the same amount of money each week. If the equation 200=20x+60 represents David’s savings for the motorcycle part, what does the number 60 represent?

Answers

Answer:

60 represents how much money he started with

Step-by-step explanation:

Answer:

answer is 60!

Step-by-step explanation:

well kind of complicated

When would you use a line graph?

if the data is given as data pairs
to compare change over time
to compare categories
Links=reported

Answers

Answer:

yes this is correct a line graph is used to show change over time

and you would use a line graph to show how something changes over time for example u take a test each week and u wanna see the results use a line graph , because it is showing change over time

Step-by-step explanation:

7. An equation is shown. x + 5 = 14 Which of the values can be substituted for x to make the equation true?

Answers

Answer:

9 can be added to make equation true i .e 14=14

hope it helps.

Answer:

B.

Step-by-step explanation:

When you plug in 9 for this equation, you have 9 + 5 = 14, which is true.

If you plug in 7, you would have 7 + 5 = 14, which is actually 12. So, this is incorrect.

If you plug in 14, you would have 14 + 5 = 14, which is actually 19. So, this is incorrect.

If you plug in 19, you would have 19 + 5 = 14, which is actually 24. So, this is incorrect.

That leaves you with B.

Hope this helps! :)

it was -3 Celsius sunset. At sunset next morning, it was -7 Celsius. Which exspression gives the temperature change from sunset to sunrise?
A. -3 - (-7) or B. -7 - (-3)
No links or fake answers. I'm so bad at deciding which number goes where -_-

Answers

I think the answer is A because A allow the number to turn positive which change the temperature to sunset to sunrise

plz helppppppp me qwq

Answers

Answer: For the first part

1250 = 150

1525 = 183

1850 = 222

2200 = 264

Step-by-step explanation:

The area of the triangle below is 2/5 square foot. What is the length, in feet, of the base of the triangle?

Choice A) 24/25
Choice B) 25/24
Choice C) 2/3
Choice D) 3/2

Answers

Answer:

C

Step-by-step explanation:

A= 1/2bh

2/5= 1/2(b)(6/5)

4/5= 6/5b

4=6b

4/6=b

b= 2/3

C. Hope it helps :DD

Sam is mixing paint for his bedroom. IN a can he has mixed 4 oz of white paint with 1 oz of royal blue. HIs room will require one gallon of paint to cover all the walls. How much blue paint should he add to one gallon of white to create the color he likes? 128 oz = 1 gallon

Answers

Answer:

2 galonn at 10 balloon of the missing assignments and hair cut today I have a impostor you jesus po ba kayo ano yun sabaysabay you jesus

Answer:

32 oz blue paint.

Step-by-step explanation:

1 gallon= 132 oz

Convert 1 gallon to oz and set the proportions.

4 oz white/ 1 oz blue= 128 oz white/ x

Solve for x

128/4 = x

32=x

Find the equation of the exponential function represented by the table below

Answers

Answer: no lo se pero buena suerte

Step-by-step explanation:

X is going up by 1 while Y is getting times by 3. Example: 0.27 x 3 = 0.81

Yarg. look on it for question. (Math middle school 7th grade "Moving ahead")

Answers

5. divide both sides of the equation by 1/4 to get x=3/(1/4), then take the inverse of 1/4 (which is 4/1) to get x= 3x4 =12 6. divide both sides of the equation by -3 to get x=-5. 7. add 3 to both sides of the equation to get x =2. hope this helps!

3. What is the classification of the pair of angles shown?

F. complementary
G. supplementary
H. vertical
I. no relationship
plz help i beg i need it i will give brainlist and 21 points

Answers

Answer: Supplementary angle
it’s supplementary angels

PLZZZZZ HELP and plz no Links

Answers

Answer:

5 1/7

Step-by-step explanation:

First, make both numbers into a fraction

9/1 x 4/7

multiply top and bottom

36/7

simplyfy- 7 goes into 36 five times with 1 left over.

5 1/7

The third one would be correct

The items Matt ate at dinner cost m dollars. He added 6.5% to the cost of dinner for sales tax. Matt paid $25 using a gift card and used cash for the rest. Select all of the expressions that show the amount Matt paid using cash.

Answers

Answer:

there isn;t anything posted underneath

Step-by-step explanation:

yeah i was abt say give us some options

An investor has an account with stock from two different companies. Last year, his stock in Company A was worth $5660 and his stock in Company B was worth $2500. The stock in Company A has increased 5% since last year and the stock in Company B has increased 9%. What was the total percentage increase in the investor's stock account? Round your answer to the nearest tenth (if necessary).

Answers

8,160.. but rounding would be 8170 sooo both increased by 5 and 9 percent would be 1270 and 1507 !

The total percentage increase in the investor's stock account will be 8.6%.

What is the percentage?

The amount of any product is given as though it was a proportion of a hundred. The ratio can be expressed as a quarter of 100. The phrase % translates for one hundred percent. It is symbolized by the character '%'.

The percentage is given as,

Percentage (P) = [Final value - Initial value] / Initial value x 100

The amount he earned from company A and company B is given as,

Earned = $5660 x 0.05 + $2500 x 0.09

Earned = $283 + $225

Earned = $508

Then the total percentage increase in the investor's stock account is given as,

P = [(508) / (5660 + 2500)] x 100

P = (508 / 5910) x 100

P = 0.086 x 100

P = 8.6%

The total percentage increase in the investor's stock account will be 8.6%.

More about the percentage link is given below.

https://brainly.com/question/8011401

#SPJ2

Plz helppp

Do the calculation below

6(18 + 14)

Answers

Answer:

Explained below...

Step-by-step explanation:

First, recognize the acronym PEMDAS, which stands for:

P - Parenthesis

E - Exponents

M - Multiplication

D - Division

A - Addition

S - Subtraction

So, as there are parenthesis, that will be your first step in the expression.

6(18 + 14) --> 6(32)

Now, you will find the next step in PEMDAS, which would be multiplication.

6 * 32 = 192.

So, your answer for the equation is 192.

Hope this helps! :)

Answer:

6(18 + 14) = 192

Step-by-step explanation:

Will give brainlest if correct, and 5 stars.

Solve for x

Answers

Answer:

x = 54

Step-by-step explanation:

These angles are complementary because they add up to 90:

x - 7 + 43 = 90

x + 36 = 90

x = 90 - 36

x = 54

Answer:

54

Step-by-step explanation:

Since the total of the two degrees makes a right angle, we know that the unknown degree has to be 47

Knowing this, we can add 7 to this. (This is the inverse of subtracting to eliminate 7)

47 + 7 = 54

So x = 54

We can verify by solving replacing x.

(54 - 7) = 47

47 + 43 = 90

Helppppppp just do the thing, also fake answers will be reported

Answers

Question 1:

(image attached)

Question 2:

a:

-About 60% is over 17 based on the chart.

b:

- About 25% of the values are less than 15.

c:

-About 40% of the values are greater than 19.

I HOPE I HELPED!!! HAVE AN AMAZING DAY/NIGHT!!! PLEASE MARK ME BRAINLIEST IF I HELPED YOU!!

A student is asked to find the length of the hypotenuse of a right triangle. The length of one leg is 38 ​centimeters, and the length of the other leg is 29 centimeters. The student incorrectly says that the length of the hypotenuse is 8.2centimeters. Answer parts a and b.

Find the length of the hypotenuse of the right triangle to the nearest tenth of a centimeter.
The length of the hypotenuse of the right triangle to the nearest tenth of a centimeter is ..... cm
​(Round to the nearest tenth as​ needed.)

Answers

Answer:

1,142.5 or 1,143

Step-by-step explanation:

Part A: Start by writing out the equation a2 + b2 = c2. Since both sides a and b are known, fill it in. So, now it is 38 squared + 29 squared = c2. Next, you have to find the square roots for both sides, or legs. For 38 squared, it will be 38 x 38 = 1,444. For 29 squared, it will be 29 x 29 = 841. Now that we both legs, we add that together: 1,444 + 841, which equals 2,285. Then, you need to divide 2,285 by 2, which is 1,142.5

Since you need to round, it would be 1,143.

Part B: 1,143

The answer is 1,143.

I know the first 2 are right, but usually there are 3 right answers for 5 choices, is there another one or am I good?

Answers

Answer:

You should be fine.

Step-by-step explanation:

Answer:

It's good. Hope you get a A+!

Step-by-step explanation:

Someone help, I can't figure this out lol

Answers

Answer: (13) 128 (14) 3 (15) 38 (16) 21

Step-by-step explanation:

13) (x+3)+49=180

14) 66+8x=90

15) (x+3)+49=90

16) 3x+117=180

PLS HELP!! /BRAINLIST (DONT PUT AN RANDOM ANSWER) PLS HELP ASAP
also if u just put anything I'll report you ​

Answers

Answer:

Step-by-step explanation:  

2(2 color pants)*4(4 colored shirt)*2(2 colored tie)=16

Tree diagram below:

A triangle has side lengths 7 and 4. How long is the third side, c?

Answers

Answer:

5,7, or 9

Step-by-step explanation:

a,b and c are the sides of a triangle if it satisfies:

a<b+c  , b<a+c and c<b+a

Here, a=4 and b=7

We have to find c

i.e. all those c which satisfies:

4<7+c , 7<4+c and c<4+7=11

Answer:

9

Step-by-step explanation:

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