Solve each problem. Round to the nearest tenth if necessary. Use 3.14 for π. What is the radius of a circle with a circumference of 15 cm? Show your work! I will be giving out brainliest!

Answers

Answer 1

Answer:

2.3

Step-by-step explanation:

First off, you start with the circumference formula which is 2(pi)r. Since we know our circumference, we can create the equation solving for r. so we have 15=2(pi)r. Now in order to solve for r, we need to transfer everything to the other side, meaning dividing by 2(pi). So 15/2(pi)=2(pi)r/2(pi). Since we are using 3.14 for pi, 3.14*2 is 6.28. 15/6.28 which is about 2.388 So the radius of the circle is 2.3 (rounded to the nearest tenth)


Related Questions

Construct an isosceles right-angled triangle ∆PQR where ∠

Answers

Answer:

Please find attached the required triangle drawn with Microsoft Visio

Step-by-step explanation:

The isosceles triangle ΔPQR we are to construct has the following parameters;

∠PQR = 90°

Length of side hypotenuse PR = 4 cm

Therefore, given that the triangle is right triangle is an isosceles triangle the length of each of the side legs are equal

Therefore, we have;

Length of PQ = Length of QR

The length of the legs , [tex]\overline {PQ}[/tex] and [tex]\overline {QR}[/tex], are given by Pythagoras's theorem as follows;

[tex]\overline {PR}[/tex] = √([tex]\overline {PQ}[/tex]² + [tex]\overline {QR}[/tex]²) = √([tex]\overline {PQ}[/tex]² + [tex]\overline {PQ}[/tex]²) = [tex]\overline {PQ}[/tex]·√2

∴ [tex]\overline {PQ}[/tex] = 4 cm/(√2) = 2·√2 cm = [tex]\overline {QR}[/tex]

The required triangle drawn with Microsoft Visio is attached

8th grade math, please help.

Answers

Answer:

∠x = 16°

Step-by-step explanation:

∠x = 180° - (180° - 16°) = 16°

Answer:

16° because alternative exterior angles are equal

Ben's car depreciates in value by 15 % per year. Ben bought his car for £ 22000 . Work out how much his car will be worth after 6 years.

Answers

Answer:

£8297.29

Step-by-step explanation:

£22 000 x 0.85 to the power of 6=£8297.29

3x+8x(-8x+3)= simplify it i guess

Answers

Answer:

27x-64x^2

Step-by-step explanation:

Distribute the 8x

3x-64x^2+24x

Combine like terms (3x and 24x)

27x-64x^2

Answer:

64x*2 + 27x

Step-by-step explanation:

This is the expression simplified.......

Consider the following formula y−p/2=e. Rearrange the formula to solve for "p":

Answers

Answer:

p = 2y - 2e

Step-by-step explanation:

Eliminate the fraction by multiplying all terms by 2:

2( y−p/2=e) = 2y - p = 2e

Now subtract 2e from both sides, obtaining:  2y - 2e = 0.

Finally, add p to both sides:  p = 2y - 2e

need help what is the equation of the purple line​

Answers

Answer:

y=-2/5x +8

Step-by-step explanation:

use y=mx+b      look at where the line intercepts with the y-axis and that is at 8 so that is your b. Then find two points and count how many down or up it is to get from the higher up point (i usually use the one that intercepts at the y-axis) to same line as the other point, in this case thats down two. Then count how many to the right it is and in this case it is 5. so since it went down thats -2 over 5 so then you just fill that into the y=mx+b   and you should get   y=-2/5x+8

Hope this helped!

ps. if this was right can you make it brainliest? thanks!

what is first three common multiples of 4,9,and 12​

Answers

Answer:

36 is the answer of this question

Answer:

Methods to Find LCM of 4, 9 and 12

Least Common Multiple of 4, 9 and 12 is the smallest number, which is exactly divisible by all of them without any remainder.

Multiples of 4 = 4, 8, 12, 16, 20, 24, 28, 32, 36.

Multiples of 9 = 9, 18, 27, 36.

Multiples of 12 = 12, 24, 36.

Yuki concluded:
"It's not possible to map AABC onto AFED using a sequence of rigid transformations, so the triangles
are not congruent."
What error did Yuki make in her conclusion?

Answers

Answer:

One more transformation — a rotation — would map △ABC onto △FED So the triangles are congruent.

Step-by-step explanation:

Yup

help the pictures underneath

Answers

Answer:

Step-by-step explanation:

I believe the correct answer is A, but im not sure. Hope it helps! <3

Answer:

a

Step-by-step explanation:

it takes a long time for a river to carve a path through rock. for example it took the grand canyon 5-6 million years to form by way of river erosion

How do I draw and determine the equation of a trend line on a scatterplot

Answers

Step-by-step explanation:

Step 1: Draw your trend line.

You begin by drawing your trend line. You want your trend line to follow your data. You want to have roughly half your data above the line and the other half below the line, like this:

trend line equation

Step 2: Locate two points on the line.

Your next step is to locate two points on the trend line. Look carefully at your trend line and look for two easy to figure out points on the line. Ideally, these are points where the trend line crosses a clearly identifiable location.

For the trend line that we just drew, we can see these two easily identifiable points.

trend line equation

We can easily identify these two points as (3, 3) and (12, 6).

Step 3: Plug these two points into the formula for slope.

The formula for slope is this one:

trend line equation

We can label our first point as (x1,y1), and our second point as (x2,y2). So our x1 is 3, our y1 is 3, our x2 is 12, and our y2 is 6. Plugging these values into the equation for slope and evaluating, we get this:

trend line equation

So our slope is 1/3.

Please help me


The following graph shows a proportional relationship. What is the constant of proportionality between y and x in the graph?

please​

Answers

Answer:

0,3

Step-by-step explanation:

Answer:

the answer is 0.3

Step-by-step explanation:

i got it right on kahn

PLEASE HELP. .......

Answers

Answer:

40

Step-by-step explanation:

Can fit 4 length wise, 5 width wise, and 2 depth wise. So 40 packages total.

the nth term of a sequence is n+7
work out the 10th term

Answers

Answer:

17

Step-by-step explanation:

Substitute n = 10 into the n th term rule, that is

a₁₀ = 10 + 7 = 17

You have to replace the nth term which is given as 10

10+7=17

Answer:17

all values of x
5 ( x + 10 )^2 − 30 = − 5
Plzzzz

Answers

i got -7. 76 or rounded to -8. If right can you please mark me brainliest?

help on math! thanks!

Answers

Answer:

A

Step-by-step explanation:

covert to slope intercept form

x-y=2

-y=-x+2

y=x-2

Answer: C

Step-by-step explanation:

Can someone help me plz?? and if u answer it can u explain how you got the answer? thx :)

Answers

Answer:

x=5

Step-by-step explanation:

2x+7=5x-8

+8+7=5x-2x

15=3x

15/3

x=5

Un rectángulo de 72 metros cuadrados de área y 18 m de base ¿Cuánto mide de altura?

Answers

Answer:

Step-by-step explanation:

área = base multiplicada por altura

72 m² = 18 m × altura

Altura = 72/18 = 4 m

Mike collects trading cards. His favorites are baseball and football cards. For every 3 basebali cards he owns, Mike has 5 football cards. What is the ratio of baseball cards to football cards in his collection ?

Answers

Answer:

56 cards

Step-by-step explanation:

If 5 baseball cards multiplied by 8 is 40, then you multiply the 7 football cards by 8 as well.

7x8=56

56 is the answer because if 5 baseball cards multiplied by 8 is 40, then you multiply the 7 football cards by 8 as well.

David's money is three times Siti's money. Farid has RM 150 less than Siti. The total amount of their money is RM 2 000. How much do each of them have? ​

Answers

Answer:

Siti's money = RM 430

David = RM 1,290

Farid = RM 280

Step-by-step explanation:

Let

Siti's money = x

David = 3x

Farid = x - 150

Total of their money = RM 2 000

x + 3x + (x - 150) = 2000

4x + x - 150 = 2000

5x = 2000 + 150

5x = 2,150

x = 2,150/5

x = RM 430

Siti's money = x

= RM 430

David = 3x

= 3(430)

= RM 1,290

Farid = x - 150

= 430 - 150

= RM 280

What is the verb in the following sentence? “It is too cold for ice cream.”
too
is
cold
It

Answers

Answer:

Is is the verb.

Hope u understand.... :P

Hope it helps...

Step-by-step explanation:

is because it is actually happening

cold is an ADVERB to describe something

i need the answer for b+4+2b-5

Answers

Steps:
B+4+3b-5
B-1+3b
Answer:
4b-1

Answer:

[tex]\huge\boxed{3b-1}[/tex]

Step-by-step explanation:

[tex]\text{Combine like terms.}\\\\\\b+4+2b-5\\\\b+2b+4-5\\\\3b-1\\\\\text{The expression could not be simplified further.}\\\\\\\boxed{\text{The correct answer should be: } 3b-1}[/tex]

Hope this helps.

Help please
what is 61x18x4x487?

Answers

Answer:

2138904

Step-by-step explanation:

yep

Answer:

61x18x4x487=2138904is your answer

pls help 100 points given to u

Answers

Answer:

9 is 2

10 is 6

Step-by-step explanation:

Mark spent $60 dollars on 4 shirts. How much was one shirt

Answers

Mark spent 15$ for one shirt
Answer is $15 one shirt
60/4
15

2/100+5/10 find the sum

Answers

Answer:

0.52

Step-by-step explanation:

2/100=0.02, and 5/10=0.5. 0.5+0.02=0.52

PLEASE ANSWER ASAP !! HAS TO BE DUE AT 11:59 WILL GIVE BRAINLIEST

Answers

Answer:

(2,-2)

Step-by-step explanation:

Used a midpoint calculator

Answer:

2,-2

Step-by-step explanation:

midpoint formula:

(x1+x2/2 , y1+y2/2)

Solve this and get 20 points

Answers

take x =initial deposit amount. then make equation:

x+75.5+55.25-25.15-18.65 = 210.85

simplify:

x+86.95 = 210.85

x=210.85 - 86.95

x=123.90

so Initial deposit amount is $123.90

check:  210.85+18.65+25.15-55.25-75.5 = 123.9

123.9 = 123.9

Find the number that makes the ratio equivalent to 72:96.

Answers

Answer:

72:96=72/12=6

So, 96/12=8

6:8

Answer:

3:4

Step-by-step explanation:

72/24:96/24 ( dividing numerator and denominator by 24)

=3:4

find the value of y

Answers

Answer:

Step-by-step explanation:

[tex]sin90/10=sin45/y\\ \\ y=10sin45\\ \\ y=5\sqrt{2}[/tex]

Answer:

The answer is

[tex]5 \sqrt{2} [/tex]

Step-by-step explanation:

By using Pythagoras

Then

[tex] {y}^{2} + {y}^{2} = {10}^{2} \\ 2 {y}^{2} = 100 \\ {y}^{2} = 50 \\ y = \sqrt{50} = \sqrt{2 \times 25} = 5 \sqrt{2} [/tex]

Find two acute angles that satisfy the equation sin(2x + 8) = cos(x + 28). Check that your answers make sense.
The smaller angle is
°.
The larger angle is

Answers

Step-by-step explanation:

why is my brainly sux lol due dude.ex

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