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

If Amy has two apples and drops one, how many does she have then?

Answers

Answer:

one

Step-by-step explanation:

Answer:

one

Step-by-step explanation:

one

What expression is equivalent to 9(3x + 8)? *

Answers

Step-by-step explanation:

This is what it is equal to:

9×3x=27x

9×8=72

Therefore it will be:

[tex]27x + 72[/tex]

hope it helps!

Answer:

27x+72

Step-by-step explanation:

You have to use the distributive property to simplify the expression. Therefore, you have to  multiply both terms inside the parentheses.

1. 9*3x=27x

2. 9*8=72

They could not be added together, as they are not like-terms. So, you just write it down as 27x+72.

Round 149,640 to the nearest thousand

Answers

Answer:

150,000

Step-by-step explanation:

Hope this helps!!

Identify the scale factor if the length of a model train engine is 3 feet and the length of the engine itself is 24 feet

Answers

Answer:

jHshshshhzysjshhddbhxsbsshshsgshyskinsdisbandeds

Answer:

it should be 1 over 8

Step-by-step explanation:

b=2x^2(x-5) divided by 10x solve b if x=10​

Answers

Answer:

answer is 10

Step-by-step explanation:

2x^2(x-5) /10x

x=10

so,

=2*10^2 (10-5) / 10*10

=2*100(10-5) /100

=200*5 / 100

=1000/100

=10

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

The value of b when x = 10 is 10.

What is an expression?

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

Example: 2 + 3x + 4y = 7 is an expression.

We have,

b = 2x² (x - 5) ÷ 10x

When x = 10 find b.

Now,

b = (2x² (x - 5))/ 10x

Substitute x = 10

b = 2 x 10² ( 10 - 5) / 10 x 10

b = 200 x 5 / 100

b = 10

Thus,

The value of b when x = 10 is 10.

Learn more about expressions here:

https://brainly.com/question/3118662

#SPJ2

What graph represents the inequality? Whoever answers first gets brainliest!

Answers

Answer:

B

We know the circle is closed

Your answer would be A because there are no negative number in the equation and the number is inclining

A movie ticket costs $12 with a discount of 5%. What is the amount of discount and the sale price?

Answers

Answer:

0.6

Step-by-step explanation:


What’s the area for each figure?

Answers

9514 1404 393

Answer:

52.5 in²52.5 in²76.97 in²total: 181.97 in²

Step-by-step explanation:

1, 2. The area of each triangle is given by the formula ...

  A = (1/2)bh . . . . . for base b and height h

The area of the given triangle is ...

  A = (1/2)(7 in)(15 in) = 105/2 in² = 52.5 in²

Triangles 1 and 2 have the same dimensions, so have the same area.

  Figure 1 area: 52.5 in²

  Figure 2 area: 52.5 in²

__

3. The area of the semicircle is given by the formula ...

  A = (1/2)πr² . . . . for a semicircle of radius r

This semicircle has a radius of 7 in, so an area of ...

  A = (1/2)(3.1416)(7 in)² ≈ 76.97 in²

  Figure 3 area: 76.97 in²

__

The total area is the sum of these:

  52.5 in² + 52.5 in² +76.97 in² = 181.97 in²

  Composite Figure area: 181.97 in²

_____

Comment on decimal digits

We cannot tell your rounding requirements. Here, we have rounded to the nearest hundredth. If you use the value 3.14 for pi, then your areas for the semicircle and composite figure will end in .93, not .97.

1. Two students went to McDonald's. They each bought the same snack, which included a shake
and a burger. The shakes cost $2 each. In total, they spent $12.
Part A: Enter an equation to represent this equation. Let x represent the cost of one burger.
Part B: Enter the cost of one burger.

Answers

Answer:

12-2=10 b=10

Step-by-step explanation:

Becca joins a gym that charges a $150 starting fee, plus $50 per month she will quit before she’s payed the total of $1000, How many months can she work out at the gym?

Answers

Answer:

I believe it 13

Step-by-step explanation:

150+50= 200 then 100= two months so i added up till i got 13 weeks

Could someone possibly help me with this question? Thanks

Answers

Answer:

[tex]12\sqrt{2}[/tex]

good luck, hope this helps :)

Why might u want to estimate by rounding each value to the nearest $1 instead of to the nearest $5

35 POINTS ANSWER FAST!

Answers

You would want to round to the nearest $1 so that the total would be more accurate.

someone help pls?!? ill give brainliest

Answers

[tex]\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}[/tex]

Actually Welcome to the Concept of the Similar Triangles.

Since here we can see that, similar triangles different by size of the side by 0.5 ration,

hence,the value of x = 0.5 times of MN

hence, x = 5/2

so the mixed fraction representation is given as,

[tex]2 \times \frac{1}{2} [/tex]

mixed fraction ration is 2(1/2)

===> hence option is B.)

How can you write the expressiHow can you write the expression 7(b – 2) in words?
A.
two subtracted from the quotient of seven divided by b
B.
seven added to difference of b minus two
C.
the quotient of seven divided by b minus two
D.
two subtracted from seven times b
E.
the product of seven and the difference of b minus two
on 7(b – 2) in words?

Answers

Answer:

E.

the product of seven and the difference of b minus two

Answer:

The correct answer would be E

Step-by-step explanation:

the product of seven and the difference of b minus two

I did the test and got it right.

Which is greater than 4? (a) 5, Which is the smallest? (a) -1, Combine terms: 12a + 26b -4b – 16a. (a) 4a + 22b, Simplify: (4 – 5) – (13 – 18 + 2). (a) -1, What is |-26|? (a) -26, Multiply: (x – 4)(x + 5) (a) x2 + 5x - 20, Factor: 5x2 – 15x – 20. (a) 5(x-4)(x+1), Factor: 3y(x – 3) -2(x – 3).

Answers

What? You can just send a picture ???
Huh? Can you send a picture lol

Gloria rides a bike 8 miles in 40 minutes. Nanette rides a bike 5 miles in 30 minutes. Who bikes faster? Explain.

Answers

Answer:

Nanette

Step-by-step explanation:

Nanette.

Gloria's rate = 40/8 = 5mph

Nanette's rate = 30/5 = 6mph

Hope that helps!

Answer:

gloria

Step-by-step explanation:

40 divided by 8 = 5

30 divided by 5 =6

is it a, b, c, or d?

Answers

Answer:

The answer is B. 4,7.5,8

Step-by-step explanation:

Becouse A and C Both of them is Right-angled triangle and D is Obtuse triangle

4(y – 3) = y – pls help me on this question

Answers

Answer:

y=4

Step-by-step explanation:

Yesenia records the ages of 9 friends. A

box plot of her data set is shown.

Click above the number line to create a

dot plot that could represent Yesenia's

data set

Answers

Answer:

did not get the point of the sum

3. There were 567 whos in Whoville. Each who ate 814 bowls of
stew. How many bowls of stew were eaten all together?

Answers

All together, there were 461,538 bowls of stew eaten all together.

Find the measure of one of the interior angles of a
regular polygon with 12 sides.
A 30°
B 165°
C 150°
D 2160°

Answers

1)(12-2)*180=1800
2)1800\12=150
So the answer is C

What is the distance between point A(-9, 15) and B(26, -2)?

A. 38.91
B. 52
C. 39
D. 30.59

Answers

Answer:

A 38.91

Step-by-step explanation:

distance formula = d= √((x2-x1)²+(y2-y1)²)

WILL GIVE BRAINLIEST!
At the end of a five day business week, the General Stock Market had a net gain of −50 points. For this five day business week, find the average net gain in points per day. (Enter an exact number.)

Answers

Answer:

Average is -10 points per day

Step-by-step explanation:

Average gain = Net gain / Five day

Average gain = -50 / 5

Which of these graphs is the solution set for the equation y = -4?

Answers

Answer:

A

Step-by-step explanation:

A

Only line A is the line that represent y = -4

please help me!!
basic Radicals

Answers

Answer:

C)

Step-by-step explanation:

[tex]x = \frac{\sqrt{a}}{ \sqrt{b}} = \sqrt{\frac{a}{b}}\\\\[/tex]

Both sides take square

[tex]x^{2}= ( \sqrt{\frac{a}{b}})^{2}=\frac{a}{b}[/tex]

John sells candy bars for 2$ each. How much will he make if he sells 10 bars

Answers

Each Candy Bar is $2, so if he sells 10, you just need to multiply,

10 * $2 = 20

So He'll make $20, selling 10 bars.

If he sells 50 bars then just multiply,

50 * $2 = 100

So He'll make $100 selling 50 bars.

Answer:

he will make $20 dallors

10×$2=20

in a 2liter of bottle
87 centiliters of oil and 4.1 deciliters. how much more liquid needed to fill the bottle

Answers

Answer:

i also don't know

Step-by-step explanation:

A runner runs at an average speed of 9 m/s for 20 seconds
How far did the runner run in metres?​

Answers

Answer:

The answer would be 180 meters.

Step-by-step explanation:

We are told the runner runs at 9 m/s for 20 seconds.

Since they run 9 meters per second, all we have to do is multiply 9 by 20, which will give us 180 meters.

9 x 20 = 180


Michelle owns a hair salon. She has 150 customers per month. On average, the price Michelle
charges her customers is £20. The cost to Michelle of providing each hair cut is £4. Michelle
has other costs of £500 for things like advertising and rent,
HOW MUCH PROFIT DOES MICHELLE'S HAIR SALON MAKE IN 3 MONTHS?

Answers

750
because she on average makes 3000 dollars a month, making her monthly profit 750 but if she needs to spend each month a 500 dollar more then she is only making 250 a month multiply 250 by 3 and she made 750

Plzzzzzzzzz somebody helppp me with this plzzz...!!!

Card sort rational numbers: order from least to greatest.


10, 15, 8, 23, 11, 5, 3, 22, 2, -1, -3, -7.7, -23, -22 3/8, -7, -8/3, -1/4, 9/8, -31/3, -6, -2.5, 0, -10, -5 5/6, -2, 1, -9, -4, -1.125, 1/4, 2.5, 8/3, 22 3/8, 31/3, 5 5/6, and 7.7

Answers

Answer:

3/8 < -31/3 < -7.7 < -7 < -6 < -3 < -8/3 < -2.5 < -1 < -1/4 < 0 < 9/8 < 2 < 3 < 5 < 8 < 10 < 11 < 15 < 22 < 23

Showing Work

Using the given inputs:

10 15 8 23 11 5 3 22 2 -1 -3 -7.7 -23 -22 3/8 -7 -8/3 -1/4 9/8 -31/3 -6 -2.5 0

Rewriting these inputs as decimals:

10 15 8 23 11 5 3 22 2 -1 -3 -7.7 -23 -22 3/8 -7 -8/3 -1/4 9/8 -31/3 -6 -2.5 0

10 15 8 23 11 5 3 22 2 -1 -3 -7.7 -23 -22.375 -7 -2.666667 -0.25 1.125 -10.333333 -6 -2.5 0

Sorting this table by decimal values in order from least to greatest:

-23   -22 3/8   -31/3   -7.7   -7   -6   -3   -8/3   -2.5   -1   -1/4   0   9/8   2   3   5   8   10   11   15   22   23

-23 < -22.375 < -10.333333 < -7.7 < -7 < -6 < -3 < -2.666667 < -2.5 < -1 < -0.25 < 0 < 1.125 < 2 < 3 < 5 < 8 < 10 < 11 < 15 < 22 < 23

Therefore, the sorted inputs in order from least to greatest is:

-23 < -22 3/8 < -31/3 < -7.7 < -7 < -6 < -3 < -8/3 < -2.5 < -1 < -1/4 < 0 < 9/8 < 2 < 3 < 5 < 8 < 10 < 11 < 15 < 22 < 23

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