Mathematics College

Find the circumference and area of a circle with radius 7 m. Use the value 3.14 for pie, and do not round your answers

Answers

Answer 1

Answer:

circumference (c) = 43.96cm

Area (A) = 615.44cm²

Step-by-step explanation:

Here,

Radious (r) = 7 cm

circumference (c) = [tex]2\pi r[/tex]

                            = 2×3.14×7

                            =43.96cm

Area (A) = [tex]4\pi r^{2}[/tex]

              = 4×3.14×7²

               =12.56×49

               = 615.44cm²

Answer 2

Answer:

area:153.86m²

circumfrence:43.96m

Step-by-step explanation:

Related Questions

Find the volume of the irregular figure 3cm 7 cm 2 cm [?] cm 9 cm 11 cm 7 cm 10 cm​

Answers

Answer:

672 cm³

Step-by-step explanation:

10x7x9=630

2x3x7=42

630+42=672

Decide whether or not it is a function.
​

Answers

Answer:

Step-by-step explanation:

Yes it's a function.

You may be looking at v which produces m

You may be looking at r which also produces m.

That's fine. Two different x values (the domain) can produce the same y value. Lots of functions do that. (you'll study parabolas pretty soon and all that open up or down have two x values producing the same y value).

If you have a member of the domain producing 2 y values,  that doesn't work. That would not be a function.

This example is a function.

What is the answer
7(2m+5)​

Answers

Answer:

14m+35 is your answer ☺️☺️☺️

Answer:

14m+35

Step-by-step explanation:

7(2m+5)

7(2m)+7(5)

14m+35

Seventeen is eight more than three times a number. Write this equation.

Answers

Answer:

17 = 3x+8

Step-by-step explanation:

A magician's stage has a rectangular trapdoor whose width is (x+1/2) feet and whose length is 2x feet. The area of the trapdoor is 10 square feet. What is the value of x ?

Answers

Answer: x  =  2  ,  − 2.5

-2.5I believe hope that helps you with your question

Which model shows 1/4 divided by 3 ? A B C D

Answers

Answer:

You didn't attach a picture of the models?

Answer:

b or d

Step-by-step explanation:

linda bought 1 shirt and 2 ties at the same store. What is the total price, in dollars and cents, of Linda's purchase?​

Answers

lets take shirts as x and ties as y
4x+2y=95
3x+3y=84
common in 3 and 2 is 6
3*2 =6 and 2*3+6
3(4x+2y=95)
2(3x+3y=84)
12x+6y=285
6x+6y+168
add 12x and 6x erase 6y's and add 285 and 168
18x=453
x=453/18
25.17
6x+6y=168
151.02+6y=168
6y=16.08
y=2.68
then
25.17+5.36
=30.53
total answer

WILL GIVE BRAINLIEST

Answers

Answer: i think its b

Step-by-step explanation:

the answer is a -(-4)^2= 16 and 16+3 is 19

If m = 27 and n = 4, what is the value of the following expression?

Answers

Answer:

2

Step-by-step explanation:

m - 5 • n + 5

plug it in

27- 5 * 4+5

well, we gotta follow PEMDAS (there are no parentheses)

5*4

20

now we have

27-20+5

20+5

25

27-25

2

Find the slope of the line that passes through (9, 6) and (6, 2).

Answers

Answer:

4/3 not sure

i hope its hepls

Answer:

y2 - y1/ x2 - x1

6 - 6/2 - 6 = 0/-4 = 0

Step-by-step explanation:

10(1+3d)=-20
step by step pls

Answers

Answer:

d=-1

Step-by-step explanation:

10(1+3d)= -20

divide both sides by 10

1+3d=-2

move the costant to the right, change the sign

3d=-2-1

caclulate

3d=-3

divide both sides by 3

d=-1

Please please need help on this one

Answers

Answer:

Y=-6x

Step-by-step explanation:

Choose two points from the graph (0,0) and (1,-6)

Average Rate of Change= (y2-y1)/(x2-x1)

(-6-0)/(1-0)=-6/1=-6

y=-6x+b

0=-6(0)+b

0=0+b

0=b

Y=-6x+0

Y=-6x

-2(x + 2) =
Please help

Answers

Answer:

-2x - 4

Step-by-step explanation:

Is your expression

-2 x x = -2x

-2 x 2 = 4

therefore, your expression would be:

-2x - 4

Answer:

-2(x + 2)= -2x - 4

Step-by-step explanation:

In the expression, x^2 + 6x + 9, which is the coeffcient?

Answers

The coefficient is the number next to the letter.

Although the x squared term has a coefficient of 1, it is not listed in the answer choices. However, the coefficient of the middle term 6x is listed.

Answer: 6

Natalena drives a moving van. She travels 372 mi in 6 h. At what speed does
Natalena drive, in miles per hour? Draw a model. Show your work.

Answers

Answer:

62 mph

Step-by-step explanation:

62 mph

372 divided by 6 = 62

I cant draw on this so you make the model. :)

hope this helps!!!!!!!!!!

Simplify
2x +3 (4x – 8) + 10

Answers

Hope it helps you....

Sorry if it's wrong..

Please need help on this one h as be no clue how to do this

Answers

Answer:

y = -2x

Step-by-step explanation:

Equation in slope-intercept form is y = mx + b.

m = slope = ∆y/∆x

Using any two points on the line, say (0, 0) and (-20, 40),

Slope (m) = (40 - 0) / (-20 - 0) = 40/-20

Slope (m) = -2

b = y-intercept = the value of y when x = 0.

b = 0

To write the equation of the line, substitute m = -2 and b = 0 into y = mx + b

Thus:

y = -2x + 0

y = -2x

Plz help ASAP I BEEN ASKING SO MANY TIME BUT NOBODY HELP ME HELPP. Plz i been on this for 3 hours

Answers

Answer:

b, d, and e

Step-by-step explanation:

those are the three answers

Answer:

I would say b d and e to

Step-by-step explanation:

hope that helps

Help The sum of two integers is 10. Their difference is 4.
What are the two integers?

Answers

Answer:

7 and 3

Step-by-step explanation:

The two integers are 7 and three because 7-3=4 and 7+3=10

consider the enlargement of the pentagon

what is the value of x, rounded to the nearest tenth?
a. 2.1 centimeters
b. 3.3 centimeters
c. 7.0 centimeters
d. 15.0 centimeters

Answers

Answer:

b. 3.3 centimeters

Step-by-step explanation:

[tex]\frac{7}{x} =\frac{15}{7} \\\\15x = 49\\x=3.3[/tex]

What is the difference of the polynomials:

(3x2 + 4x + 8) - (2x2 + 2x + 5)

a x^2 + 2x + 3
b x^2 + 6x + 3
c x^4 + 2x^2 + 3
d x^4 + 6x^2 + 13

Answers

Answer:

(6+4x+8)-4-2x-5

6-4+4x-2x+8-5

2+2x+3.

X+ 10 = 7
what is the solution to this question

Answers

Answer:=−3

Step-by-step explanation:

+10=7

+10−10=7−10

the solution is x= -3

PLSSSSSSSSS HELP answer back please fast within an hour!!!!!!!

A bag contains​ pennies, nickels,​ dimes, and quarters. There are 50 coins in all. Of the​ coins, ​18% are pennies and ​36% are dimes. There are 2 more nickels than pennies. How much money does the bag​ contain?

Answers

Answer: $5.44

Step-by-step explanation:

18% of 50= 9 pennies

36% of 50= 18 dimes

9 + 2= 11 nickels

9+18+11= 38 pennies, nickels and dimes.

50 (total amount of coins) - 38 (pennies nickels and dimes)= 12 quarters.

9 pennies= 9 cents

18 dimes= 180 cents

11 nickels= 55 cents

12 quarters= 300 cents

9 + 180 + 55 + 300= 544 cents= $5.44

Answer:

$5.44

The bag contains $5.44.

Step-by-step explanation:

Pennies:

50(18/100)= 9 pennies

Dimes:

50(36/100)= 18 dimes

Nickels:

2 more nickels than pennies

9+2= 11

Quarters:

9+18+11= 38

50-38= 12 quarters

1 penny = 0.01 dollar

9x0.01= 0.09

1 dime = 0.10 dollar

18x0.10= 1.80

1 nickel = 0.05 dollar

11x0.05= 0.55

1 quarter = 0.25 dollar

12x0.25= 3

0.09+1.80+0.55+3= $5.44

pls help me and give explanation ​

Answers

Answer:

40ft

Step-by-step explanation:

Add up all four sides of your rectangle:

15ft + 15ft +5ft + 5ft = 40ft

You can find the other 5ft (the side that is missing) if you notice that the smaller sections are squares.

Solve ( x− 4)^2 = 9.

Answers

Answer:

= 7

Step-by-step explanation:

Answer:

x= 7, 1

Step-by-step explanation:

Take the root of both sides and solve.

Hailey's car used 4 gallons to travel 172 miles. At what rate does the car use gas, in miles per gallon?

Answers

Answer:

43

Step-by-step explanation:

43 miles for every 1 gallon of gas

Students picked 144 ounces of strawberries to make strawberry jam. How many pounds of strawberries did they pick​

Answers

students picked 9 pounds of strawberries.

Answer:

9 pounds

Step-by-step explanation:

I converted it

What is the solution to the inequality -3x - 5 < -20?

Answers

Answer:

x > 5

Step-by-step explanation:

Answer:

we have -3x < -15,

so

3x > 15,

x > 5

brainliest please?

find the circumference of a circle with an area of 1,134.11

Answers

Step-by-step explanation:

C≈3.54

Using the formulas

A=πr2

C=2πr

Solving for C

C=2πA=2·π·1≈3.54491

Enter the unknown value in the equation.

35.7−□=11.23

Answers

Answer:

24.47

Step-by-step explanation:

First, 35.7 - 11.23 = 24.47, which is your answer

Hope this helps!

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