Mathematics Middle School

A circle has a radius of 15 centimeters and an area of 225π cm2. If the radius is multiplied by 3, what is the area of the new circle?

Answers

Answer 1
Shape: Circle
Area: (pie)(radius)^2
(Work shown in photo below)
A Circle Has A Radius Of 15 Centimeters And An Area Of 225 Cm2. If The Radius Is Multiplied By 3, What

Related Questions

Graph the solution to this inequality on the number line. −1/3x + 1/2 ≥ −3/4

Answers

Answer:

4.5 (4.5 units to the left of 0) Make sure to draw a solid dot over 4.5 and an arrow pointing in the right direction.

>= is the greater than or equal to symbol

Step-by-step explanation

1. Combine like terms- In this problem, the like terms are 1/2 and -3/4, so to move 1/2 over to the other side of the equation, we have to divide each side by 2/1, which is the same as multiplying each side by 2: -1/3x + 1/2 * 2 >= -3/4 * 2.

2. Separate the fraction from x- Now, we simply divide each side by -3/1, which is the same as multiplying each side as -3: -1/3x * -3 >= -3/2 * -3

3. Graph on the number line- We've found that x = 4.5. To check, substitute in 4.5 for the value of x: -1/3(4.5) + 1/2 >= -3/4. -1 >= -3/4 is a true inequality. To graph it on the number line, draw a solid dot over 4.5 and an arrow in the direction of the righthand side.

PLS HELP IM GONNA FAIL MATH
How long is the fence around a circular field with a radius of 340 ft.?

Answers

Answer:

so you are trying to find the circumference and the formula is 2πr

so the answer is 2 × 3.142 × 340 ft = 2136.56 ft

I think that's the answer

The answer would be 2 x 3.14 x 340ft = 2021.60

How to calculate distance between two points (-3,2) and (3,0).
And pls find the radical

Answers


√74
Explanation:
To calculate the distance use the
distance formula
d=√(x2−x1)^2+(y2−y1)^2

−−−2
where
(x1,y1)and (x2,y2)
are 2 coordinate points
The 2 points here are (-3 ,7) and (4 ,2)
let(x1,y1)=(−3,7) and (x2,y2)=
(4,2)⇒d=√(4−(−3))2+(2−7)2=√49+25=√74←in radical form
I think it’s y=3x-9?

plz help for 100 points what I need help with is in the pictures

Answers

I can’t see the picture

What is the least common denominator of the four fractions listed below? (50 points!)​

Answers

Answer:

100

Step-by-step explanation:

100^^cccffggggdfhhggfffft

2
Which of the following representations are functions?



I only

II only

I and II only

I, II, and III

Answers

Answer:

I only                                                                

Step-by-step explanaition:

The domain (x) can not repeat in order for it to be a function.

l only

i did this last week

help me and i will mark you the brainlyist

Answers

1a. n ≤ 21
1b. n ≥ 5
1c. n > 3/5

2d. n < 14
2e. n ≥ 14
The answer is what the guy above said

What is the distance between the points? Round to the nearest tenth if necessary.

Answers

Answer:

Im pretty sure its 11.6

Step-by-step explanation:

The answer is 1.7 rounded to the nearest tenth

What is the y-intercept y = -6x - 5


1. (0, -5)


2. (5, 0)


3. (0, 5)


4. (-5, 0)

Answers

Answer:

(0,-5)

Step-by-step explanation:

Hope this helps :)

Hello. The y-intercept is (0,-5).

Which expression is equivalent to the expression below?

15 + 10x - 14x - 9

Answers

Answer:

The last expression 9.

Step-by-step explanation:

hope this helps! let me know if I am wrong

Which of the following does not have 90 as a multiple?

7
6
5
3

Answers

Answer:

7

Step-by-step explanation:

I don't completely understand what you were asking, but if you were counting by 7's, 91 would be after 84 instead of just 90.

Answer:

7

Step-by-step explanation:

7x14=91, so 1 is not a multiple of 90. Don't really understand tho, plz comment if this is not what you meant.

What is the distance between the points? Round to the nearest tenth if necessary.

Answers

Answer:

10/4

Step-by-step explanation:

rise over run

10/4 hope this helped <3

A right triangle has sides of length 3, 4, and x. Find x if it is the hypotenuse.

HELP ME PLEASE

Answers

Answer:

5

Step-by-step explanation:

The rules for the hypotenuse is side a^2+side b^2=hypotenuse^2

a=3

b=4

3^2=9

4^2=16

9+16=25

5^2=25, so 5 is the hypotenuse.

:)

I need assistance with this

Answers

Answer is 1 1/2 and -1 1/5

include a step by step explanation pls ty

Answers

the division problem is 7 divided by 15. this can be written as 7/15. to do this, you first know that 15 doesn't go into 7, so you add a decimal point, and make the 7 70. 15 goes into 70 4 times. 15 times 4 is 60. 70-60 is 10. 15 doesn't go into 10, so you add another 0 and bring it down. 15 goes into 100 6 times. 15 times 6 is 90. 100-90 is 10. 15 doesn't go into 10, so you bring down another 0. 15 goes into 100 6 times. 15 times 6 is 90. 100-90 is 10. at this point, you can probably guess that the 6 will go on for a while. this means it is repeating. this means your answer is "a".

i neeed help. this is due today

Answers

Answer:

I’d say letter A

Answer:

I think is D

Step-by-step explanation:

Because that part explains the most what will happen

50 Points!

Two cars are traveling down the highway at the same speed. If the first car increases its speed by 10 kilometers per hour, and the second car decreases its speed by 10 kilometers per hour, then the first car will travel the same distance in two hours that the second car travels in three hours. What is the original speed of the cars?

Answers

Answer:

50mph

Step-by-step explanation:

Say for example car A increases by 10 miles per hour and car B decreases by 10 miles per hour. If car A2 = car B3 then by eliminating a few numbers and finally get to 50 you get the following equation.

A = 50+10

b = 50-10

A = 60

B = 40

A2 = 120

B3 = 120

120 = 120

Answer

50 mph

Step-by-step explanation:

3(s-10)=2(s+10)

3s-30=2s+20

s=50

Is what I did correct if not then what is the answer

Answers

Answer:

Yes it is correct

Step-by-step explanation:

Answer:

You're correct!

Subtract 47 from both sides.

j = 55 - 47

Simplify 55 - 47 to 8.

j = 8

which does not represent two equivalent expressions 51 MAFS.6.EE.1.1 Which does not represent two equivalent expressions?

A.) 33=3·3·3
B.) 43=4·3
C.) 64=6·6·6·6
D.) 52=5·5

Answers

Answer: B

Explanation: 4 times 3 is equivalent to 12 and the question was asking for exponents. A has 3 multiplied by itself 3 times so that is correct. C has 6 multiplying itself 4 times so that would be correct. D has 5 Multiplying itself 2 times so that would be correct. The only one that does not represent equivalency would be B.

BE READY, GAME SHOW
Hii, (game show to help me with this question, be ready pumpkins!)

GAME SHOW!!!! HELP ME OUT!

Which equation can be used to solve the problem?

750 is 150 percent of what?


WINNER=BRAINLIEST AND MOVES ON THE THE SECOND ROUND GOOD LUCK FIRST TO ANSWER

Answers

Answer:

750/150 * 750/x

Step-by-step explanation:

Answer:

One equation that can be used is this: 7.50 * 150 =

The other equation is 750% of 150.

Hope this helps!

I have too much brainliest so the other one can have it.

Which fractions are equivalent to 40%? Check all that apply.
StartFraction 8 Over 100 EndFraction
Two-fifths
StartFraction 8 Over 20 EndFraction
StartFraction 4 Over 10 EndFraction
StartFraction 16 Over 40 EndFraction
btw: its a multiple choice question

Answers

8/20, 4/10 this is the answer also 16/40

i shall give the right answer brainliest

Answers

Answer:

D i think

Step-by-step explanation:

Answer:

I belive it is 4 to the power of 7

Step-by-step explanation:

Please help me!!! ASAP!

Answers

B. For every 3 rabbits there are 8 total animals.

Answer:

the answer is b

3 and 8 times two equals 6 and 16

Pls help this is due tmr

Answers

A hop it helps! If not am sleeyr

Answer:

D

I need to write 20 characters ignore this

Select the expressions that are equivalent to 9d+4d.

Answers

The answer is
d • 13
7d + 2d + 4d
13d

Answer:

The first one, second one, and the last one. not the third one because 9d+3d=12d not 13d

Step-by-step explanation:

A student has a container with a volume of 2.5 liters.
He estimates the volume to be 2.4 liters. By what percent is the​ student's estimate​ off?

Answers

Answer:

10%

Step-by-step explanation:

2.5-2.4=0.1

0.1=10%

The answer is 10% I hope it’s right

solve 2 (3x - 1) - 6

give an explanation pls

Answers

Answer: 6x - 8

Step 1: Distribute [ Multiply 2 by the numbers in the parentheses]
6x - 2 - 6

Step 2 : Subtract [ Like terms ]
6x - 8

Answer:2(3x-4)

Step-by-step explanation:

Step 1: Distribute

2(3x-1)-6

6x-2-6

Step 2: Subtract

6x-2-6

6x-8

Step 3: Common Factor

Factor by grouping

2(3x-1)-6

2(3x-4)

RectangleA′B′C′D′ is the image of rectangleABCD after a dilation.

What is the scale factor of the dilation?

Answers

The length of the side of the original is 3 units.

The length of the side of the smaller one is 1.5

Scale = 1/2

The lenth of the side units are 3

10 Points + brainliest.
7a + 50 = 247

Answers

Answer:

a = 28.14 (Estimated)

Step-by-step explanation:

7a + 50 = 247

=> 7a = 197

=> a = 28.1428571429 (Using Calculator)

=> a = 28.14 (Estimated)

Hoped this helped.

Answer:

a= 190

Step-by-step explanation:

7a+50=247

=7a = 247-50

= a = 197-7

= a = 190

A tortoise moves at a speed of 26 inches in 9 seconds. What is its average speed in feet per hour?
≈ 780 ft/h
≈ 867 ft/h
≈ 855 ft/h
≈ 936 ft/h

Answers

Answer:

867 ft/h

Step-by-step explanation:

26 inches = 2.17 feet

9 seconds = 0.15 of a minute = 0.0025 of an hour

2.17 / 0.0025 = 867

867 ft/h
EXPLANATION
26 in=2.17ft
9 sec = 0.0025 hr
2.17/0.0025 = 867
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