a circle has an area of 100 square cm what is the radius and circumference of the circle ​

Answers

Answer 1

Answer:

Radius = 10 cm

Circumference = 20*pi cm

Step-by-step explanation:

Area of a circle = pi * r^2

100 = r^2

10 = r

Circumference = 2*pi*r

2*pi*10

20*pi


Related Questions

Sarah will roll a fair number cube. The number cube is labeled 1 to 6. What is the probability that Sarah will roll a number greater than 2? HELP!

5/6

1/6

2/3

1/2

Answers

Answer:

       5/6 or 4/6

Step-by-step explanation:

6-2=

4/6 -with out two

5/6 -including two

Help please I don’t get it

Answers

Answer:

I'm not sure if I'm correct but I think it's F=5

Step-by-step explanation:

6 times 5 = 30

If the number of bacteria in a colony doubles every 70 hours and there is currently a population of 5 bacteria, what will the population be 140 hours from now?

Answers

Answer:

140

Step-by-step explanation:

hope i helped!

Which proportion correctly shows the relationship between the part, whole, and percent of a percent problem

Answers

Answer:

C. [tex]\frac{Part}{Whole} =\frac{Percent}{100}[/tex]

Step-by-step explanation:

A good way to think about it is this. You know that 1/2 is 50%. It's common knowledge.

In this case 1 is the Part and 2 is the whole

[tex]\frac{Part}{Whole} = \frac{1}{2} = .50[/tex]

So to get 50% in decimal form we would have to divide it by 100 to move the decimal over two places

[tex]\frac{Percent}{100} = \frac{50}{100} = .50[/tex]

Therfore,

[tex]\frac{1}{2} = \frac{50}{100}[/tex]

or

[tex]\frac{Part}{Whole} =\frac{Percent}{100}[/tex]

Two numbers, x and y, have a sum of 8 and a difference of –14. A. Write a system of equations that can be used to determine the values of x and y. B. Solve the system of equations. Show your work.

Answers

Answer:

The system is:

x + y = 8

x - y = -14

And the solution is:

x = -3

y = 11

Step-by-step explanation:

We have two numbers x and y, such that:

x + y = 8   (the sum is equal to 8)

x - y = -14  (the difference is equal to -14)

This is the system of equations we need to solve.

To solve the system, we first need to isolate one of the variables in one of the equations, I will isolate x in the first equation:

x = 8 - y

Now we can replace this in the other equation to get:

(8 - y) - y = -14

8 - 2*y = -14

8 + 14 = 2*y

22 = 2*y

22/2 = y

11 = y

Now we can replace this in the equation "x = 8 - y"

To get:

x = 8 - 11  = -3

Then the solution to the system is:

x = -3 and y = 11

Find the area of the given shape

Answers

Answer:
The area of that triangle is 28 square inches.
Explanation:
You must choose a height that is perpendicular to the base.

In that case, the height 8 inches is perpendicular to the base 7 inches.

8 inches x 7 inches= 56 inches.

Since the formula for a triangle is base x height divided by 2, we divided 56 by 2

56 divided by 2 = 28
So the area is 28 square inches
MARK ME BRAINLIEST PLS

If fx) and f^-1(x) and inverse functions of each other and f(x) =2x+5, what is f^-1(8)?

O -1
O 3/2
O 41/8
O 23

Answers

i’m guessing he answer is a

Answer:

b. 3/2

Step-by-step explanation:

1. If you're trying to gain access to a credit card before you turn 21, which of
the suggestions rely on the support of your parent or guardian?

Answers

I think you should rely on your parent

Last week, she bought two pounds and paid $7.96, and this week she bought only one-half pound and paid $1.99. What is the unit rate for the pistachio nuts? How do you know?

Answers

Answer:

$3.98

the unit rate can be determined by dividing the total costs of the pistachio by the total pounds bought

Step-by-step explanation:

unit rate = total cost / total pounds bought

7.96 / 2 = $3.98

1.99 / 0.5 = $3.98

Please help!!
If you could explain that would be great!

Answers

Answer:

It would be 1/2

Step-by-step explanation:

y = (1/2)x has the format y = kx, where k is the const. of prop.  In this particular case that const. of prop. is (1/2).

What is tan(k)? 45, 24, 52

Answers

Answer:

Try A

Step-by-step explanation:

help:(, i’m not sure how to do this

Answers

Answer:

i think you have to multiply the sides..

Step-by-step explanation:

Answer:

Step-by-step explanation:

1) PQ² + PR² = QR²

PQ² + 14² = 50²

PQ² + 196 = 2500

           PQ² = 2500 - 196 = 2304

            PQ = √2304

PQ = 48

Sin Q = [tex]\frac{opposite side}{hypotenuse}=\frac{14}{50}\\[/tex]

[tex]Cos Q = \frac{adjacent side}{hypotenuse}=\frac{48}{50}\\\\Tan Q = \frac{oppsite}{adjacent}=\frac{14}{48}\\\\\\\Sin R = \frac{48}{50}\\\\Cos R = \frac{14}{50}\\\\Tan R = \frac{48}{14}\\\\[/tex]

2) tan 48 = [tex]\frac{x}{17}[/tex]

x = 17 * tan 48  = 17 * 1.1106 = 18.8802

x = 18.8802

PLEASES HELP the screenshots are at the bottom

Answers

Answer:

 D. The water will be about 50°C. (54.8 (rounded up) is 50.)  C. 23; the amount the temperature increases each minute.

Step-by-step explanation:

x = 6 (6 minutes)

5.3 x 6 + 23 = 54.8

5.3 x 6 = 31.8

31.8 + 23 = 54.48

2.  C.  23: the amount of the temperature increased each minute.

Let me know if this helps!

The blue segment below is a diameter of OO. What is the length of the radius of the circle? O A. 2.95 units O B. 11.8 units O c. 5.9 units O D. 8.85 units​

Answers

Answer:

The length of the radius is 2.95 units

The  length of the radius of the circle is 2.95 units.

What is Circle?

A circle is a shape consisting of all points in a plane that are at a given distance from a given point, the centre.

Given that  blue segment below is a diameter of O

Diameter is five point nine.

We need to find the radius of the given circle.

Radius is equal to diameter by two

Radius= Diameter/2

Now put value of diameter in the above formula

Diameter = 5.9

Radius =5.9/2

=2.95

Hence, the  length of the radius of the circle is 2.95 units.

To learn more on Circles click:

https://brainly.com/question/11833983

#SPJ7

Please answer correctly! I will mark you Brainliest!

Answers

Answer:

27

Step-by-step explanation:

V=a^3=3^3=27

Can someone answer these? It like due in 15 mins

Answers

Answer:

1 = Supplementary

2 = Vertical

3 = Congruent

4 = Supplementary

5 = Complementary

6 = Adjacent

7 = never

8 = always

9 = sometimes

10 = 79°

11 = 28°

12 = 133°

Step-by-step explanation:

8.1g of sugar is needed for every cake made. How much sugar is needed for 6 cakes?

Answers

Answer:

48.6

Step-by-step explanation:

If you use 8.1g of sugar for 1 cake then 6 cakes will be 48.6g of sugar

Just do 8.1*6 and you will get 48.6

A group of four friends went out for dinner. Their bill came to $50.95. They also need to pay 8% sales tax, and want to tip their server 18% on the cost of the meal (including tax). How much will EACH friend have to pay? Round your answer to the nearest cent.

Answers

Answer:

Enter cost and tip percent to get a tip amount and total dinner amount. Also split the total amount; divide among any number of people. ... Money, Pay, Taxes. > Tip ... Enter your meal or dinner cost along with the tip percentage. ... To calculate a gratuity or tip on any calculator it is a simple multiplication. ... All rights reserved

Step-by-step explanation:

After eating at your favorite restaurant, you know that the bill before tax is $52.60 and that the sales tax rate is 8%. You decide to leave a 20% tip for the waiter based on the pre-tax amount. How much ... To figure out the tip, you need to find 20% of $52.60. 0.2 \times 52.6

The amount that each person should pay is  $22.06   .

What is percent?

Percentages can be stated as essentially fractions where the denominator is 100. To show that a number is a percent, we use the percent symbol (%) beside the number. We can take as example, if you got 75 questions right out of 100 on a test (75/100), you would have scored 75%.

here, we have,

in the question ,

it is given that

total number of persons = 3 person + 1 = 4 persons

cost of the meal = $72.50

sales tax percent = 6.75%

tip percent = 15%

So , the amount of sales tax = 6.75% of cost = 0.0675 * 72.50 = $4.89

and , the amount of tip is = 15% of cost

= 0.15 * 72.50

= 10.87

So , the total amount payable is = cost + sales tax + tip

= 72.50 + 4.89 + 10.87

= 88.26

since the total number of persons is 4 ,

the amount per person is = 88.26/4 = 22.06

Therefore , The amount that each person should pay is  $22.06   .

Learn more about Percent here

brainly.com/question/19131273

#SPJ2

Se quiere realizar la adición y multiplicación de los números enteros 43 y -32. En relación con los signos de las operaciones se puede decir que

Answers

Answer:

El caso de la adición es trivial.

La adición entre los números A y B es:

A + B

Entonces la adición entre los números 43 y -32 es:

43 + (-32)  

No hace falta realizar la suma para darnos cuenta de que el resultado tendra signo positivo, esto se da porque el módulo del número positivo es mayor que el del número negativo.

Así tenemos:

43 + (-32) = 43 - 32  = 11

Para el caso de la multiplicación podemos recordar:

(+)*(+) = (+)

(-)*(+) = (-)

(+)*(-) = (-)

(-)*(-) = (+)

Entonces el producto entre un número positivo y uno negativo (como es nuestro caso con 43 y -32) siempre tendrá un signo negativo.

Entonces podemos concluir que el signo de la multiplicación entre esos dos números va a ser negativo.

También podemos resolver la multiplicación de otra forma para ver esto:

43*(-32)

43*( (-1)*32)

43*(-1)*(32)

(-1)*(43*32)

Que es claramente un número negativo.

Find the circumference of the circle. Use 3.14 for π. Round to the nearest hundredth, if necessary.

Answers

Answer:

There is no circle

Step-by-step explanation:

If you post the circle, I will help

Make sure to attach a file of the photo (Please no links)

What is the slope of (12,-18) and (11,12)? Please I’m very confused.

Answers

Answer:

-30

Step-by-step explanation:

[tex]\boxed{slope = \frac{y1 - y2}{x1 - x2} }[/tex]

where (x₁, y₁) is the first coordinate and (x₂, y₂) is the second coordinate.

Slope

[tex] = \frac{12 - ( - 18)}{11 - 12} [/tex]

[tex] = \frac{12 + 18}{ - 1} [/tex]

= -30

Which equation has the solution x = 2?

A 2x-3=19

B 3x+2=8

C 4x-4=-4

D 5x+1=10

Answers

Answer:

The answer is B.

Step-by-step explanation:

You can solve this problem by plugging in 2 for x in the given equations.

2(2) - 3 = 19 is false

3(2) + 2 = 8 is true

4(2) - 4 = -4 is false

5(2) + 1 = 10 is false

To solve this system of equations by elimination, what operation could be used to eliminate the y-variable and find the value of x?
18x+5y=6
4x+3y=6
A)
subtract 2 times the second equation from 9 times the first equation
B)
subtract 9 times the second equation from 2 times the first equation
C)
subtract 3 times the second equation from 5 times the first equation
D)
subtract 5 times the second equation from 3 times the first equation

Answers

C might be the right answer

Tell me which lines to draw to which ( whoever answers correctly gets brainliset )

Answers

Answer:

13. 24ft = 8yd

14. 120in = 10 ft

15. 2 yd = 72 in

16. 5 yd = 180 in

17. 20yd = 60 ft

Step-by-step explanation:

24ft*12 in = 288 inches/36 inches(1yd) = 8yd

120in/12in = 10ft

2yd*36in = 72 in

5yd*36in = 180 in

20yd*36in = 720/12in = 60ft

1ft = 12inches

1 yd = 36 inches

What is the unit rate? 52.5/2.5

Answers

Answer:

21

Step-by-step explanation:

A triangle has two angles that measure 45 degrees and 35 degrees. What is the
measurement of the third angle?

Answers

Well, we know that a triangle's angles add up to 180°, so 45 + 35 + x = 180, and x = 100.

The third angle is 100.

Answer:

The measurement of the third angle is 100 degrees.

Step-by-step explanation:

Just add 45 + 35 which equals to 80. Every triangle's angles equal to 180 degrees so subtract 80 from 180. That equals 100 degrees.

Equation: 45+35=80

180-80=100

Hope this helps! :)

can someone pls help me

Answers

Answer:

x=−8 and y=−4

Step-by-step explanation:

8x−17y=4;−8x+15y=4

add eqn1 and 2

to eliminate x

you will get y=-4

put it zin eqn 1

x=-8

help please i been stuck for 2 hours........... the triangle above is a right-angled isosceles triangle. what would the measurement of x have to be, given that the hypotenuse is 8cm and legs a and b have the same length? please explain your answer

Answers

Answer:

4√2 or 5.66

Step-by-step explanation:

x² + x² = 8²

=> 2x² = 64

=> x² = 32

=> x = √32 = 4√2 or 5.66

find slope represented in the table

Answers

Answer:-4

Step-by-step explanation:

The answer is -4 for the problem

In an online survey 55 out of 100 parents prefer to receive the weekly newsletter
electronically. How many PAPER newsletters would the school estimate are
needed if there are 700 parents?

Answers

I’m assuming 385 I did cross multiplication for this one
Other Questions
How did you demonstrate imagination, flexibility, initiative, or judgement as you explored ideas to make, interpret, or present art works? How does this work show your thoughts, feelings and expressions? A full set of adult teeth has 160% as many teeth as a full set of baby teeth. How many teeth are there in a full set of adult teeth if there are 20 teeth in a full set of baby teeth The gene for black coat color (B) is dominant over the gene for brown coat color (b) What percent of the offspring are expected to have brown coat color as a result of a cross between a dog with black coat color (Bb and a dog with brown coat color (bb)? A:25 B:50 c:75 d:100 answer quick please! Work out the size of the angle marked x Give a reason for your answer to question 8 Which of the following expressions is represented by the number line below?A. -6 - 5B. 6 + (-4)C. -6 + 4D. 6 - (-4) No links~English ~Ill mark brainliest if correct In 2021, due to a change in marketing forecasts, Barney Corporation reduced the projected life of its patent for producing round dice. The cumulative patent amortization prior to 2021 would have been $18 million higher had the new life been used. Barney's tax rate is 25%. Barney's retained earnings as of December 31, 2021, would be: please help im stuck Which of the following conclusions is best supported by the passage below (paragraph 16)?Developing human space-faring technology is crucial, but first we need to decide where to go. The moon is a dead planet and Mars is not nearly as welcoming as the New World was to the Spanish explorers. In fact, there is no place in our solar system where pioneers can simply drop seeds in the soil and wait for food to pop out of the ground. For that, we need to look at distant stars.Answer choices for the above questionA. Spanish explorers did not encounter any problems in the New World.B. There are other planets in the universe where we can plant seeds from Earth.C. We are unsure about if Mars ever supported life.D. The greatest chance of finding a habitable planet is in another solar system. Mary made two 8 ounce drinks each in a separate cup. The first cup has 4 ounces f coffee and four ounces of milk. The second cup has 6 ounces of coffee and 2 ounces of milk. After she stirred the two drinks really well, she took out a third cup that was empty. She poured 2 ounces from the first cup ad 4 ounces from the second cup into the third cup. How many ounces of coffee are in the third cup (5. Depth of field)Please can someone help me get this written. Or give me an idea on where to start. I know nothing about photography so im completely stuck. An open market sale of U.S. Treasury securities by the Fed will cause the Banking System's balance sheet to show: Group of answer choices no net change in assets or liabilities, only a change in the composition of assets with securities decreasing and reserves increasing. only an increase in liabilities. only a decrease in assets. no net change in assets or liabilities, only a change in the composition of assets with securities increasing and reserves decreasing. Overview12345678Question ProgressHomework ProWork out the value of 10 squared 4 cubedGive your answer as a power of 6. PLSSSS HELP I REALLY NEED IT PLSSSSSSSS PLSSSS GIVE ME UR THINKING IF U HELPP ILL SEND 60 POINTSS WHY IS SOMEONE THAT HELPS THE ENVIRONMENT Why WHOULD U consider this person an example to follow? Can anyone please help me to do this with steps a 42 inch diameter tablecloth that hangs off the edge 8 inches. what is the area of the tablecloth use 3.14 for pi You are a citizen of a new city of the Hellenistic ERA. Write a description of the ideal Hellenistic city. What are the benefits of living in this city? if x-1/3=k and k=3 what is the value of x if the opposite angle of rhombus are (2x)and (3x-40) then what is the value of x?Options :A. 100B.80C.160D.40 Which of the eight diagnostic steps for locating an engine performance problem is performed first?A. Check for any technical service bulletins (TSBs).B. Check for any diagnostic trouble codes (DTCs).C. Verify the concern or complaintD. Perform a thorough visual inspection.