A certain machine is to contain two wheels, one of radius 2 inches and one of radius 8 inches. The
manufacturer of this machine needs to produce a belt that will fit snugly around the two wheels,
as shown in the diagram below. How long should the belt be?

A Certain Machine Is To Contain Two Wheels, One Of Radius 2 Inches And One Of Radius 8 Inches. Themanufacturer

Answers

Answer 1

Answer:

62.83 in

Step-by-step explanation:

C is circumference

r is the radius

We sum up both, given first one radius is 2 and second one radius is 8, so we have:

The length of the belt should be around 62.83 in


Related Questions

Claudia is making a candle by pouring melted wax into a mold in the shape of a cylinder. The radius of the cylinder’s base is 4 cm, and the height of the cylinder is 9 cm. To get the wax for the candle, Claudia melts cubes of wax that are each 3 cm by 3 cm by 3 cm. How many of the wax cubes will Claudia need to purchase to make the candle? (Note that Claudia is not able to purchase partial cubes). Show all your work.

Answers

The formula of a cylinder is 2πr (r+h)

2π4 (4+9)

8π (13)

25.13 (13)

326.73

Cubes: area = a^3

3x3x3 = 27

326.73 / 27 = 12.1

Claudia would need to buy 13 wax cubes to fil the candle.

hope this helps k12 students :)

please can someone help fr​

Answers

Step-by-step explanation:

help with what because on this tab I can only see a picture icon and not the actual snap so I'd like to help but I really cant

Answer:

x = 116°

Step-by-step explanation:

Finding the value of 'x' in a polygon

 [tex]\sf \boxed{\text{Sum of interior angles of a polygon = (n - 2)*180}}[/tex]

                                                           = (5 - 2) *180

                                                           = 3*180

                                                            = 540°

                      90 + 119 + 86 + 129 +x = 540  

                                               424 + x = 540

                                                         x = 540 - 424

                                                         x   = 116°

find the cost of 10 pens at x pence each

Answers

Answer:

D. x + 10 pence

Step-by-step explanation:

Since the pen costs 10 pence more than the ruler, we need to add 10 to x.

2) A box contains 9 red and 2 blue marbles and 3 yellow marbles. If you select oneat
random from the box, determine:
a) The probability the marble is red.
b) The odds in favor of selecting a red marble.
c) The probability the marble is blue.
d) The odds against selectinp a hlue marble

Answers

Answer:

red is more in value unlike the rest

⚠ANSWER FOR THE 5TH GRADERS⚠

Answers

Answer:

vitamins - organic compound

minerals - inorganic compounds

Step-by-step explanation:

Answer:

1. minerals = B inorganic elements

2. Vitamins = A organic compound

Step-by-step explanation:

the product of nine and a number decreased by six​

Answers

Answer:

9* (x-6)

9x-54

9x=54

x=54/9

x=6

Step-by-step explanation:

I need help 20 points

Answers

Answer:

[tex]A = 9\pi[/tex]

Step-by-step explanation:

This is basically just 3/4 of a circle, so the area will be:

[tex]A = \frac{3}{4} \pi r^{2}[/tex]

Plug in 6 for the radius:

[tex]A = \frac{3}{4} \pi (6)^{2}[/tex]

Simplify:

[tex]A = \frac{3}{4} \pi (36)[/tex]

Simplify further:

[tex]A = 9\pi[/tex]

Answer: 84.825

Step-by-step explanation:

area of circle = pi r squared.

radius is 6. plug in numbers for area.

the whole circle is 113.1 x 3/4 is 84.825

When calculating interest accrued, you use the
O A. APR
O B. APY
O C. debt ratio
O D. going rate

Answers

A. APR.

multiply the principal by the APR and the
number of months in the year, then divide by the
number of months earning interest. multiply the
principal by the APR and number of months,
then divide by the total number of months in the
year. multiply the principal by the APR and
number of months.

Unit test
Problem
Here are two different samples drawn from two different populations:
Two dot plots show the distributions of two samples. For each sample, the number line has a scale from 0 to 100 in increments of 10. For sample A, n = 11. The distribution is right skewed between 70 and 100, with outliers at 0 and 10. For sample B, n = 14. The distribution is right skewed between 0 and 100.
Which sample satisfies the normal condition for constructing a ttt interval?

Answers

Using the Central Limit Theorem, it is found that none of the samples satisfy the normal condition.

What does the Central Limit Theorem state?

It states that the sampling distribution of sample means of size n has standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex], as long as at least one of these following conditions is respected.

The underlying distribution is normal.The sample size is greater than 30.

In this problem, the underlying distributions are skewed, and both sample sizes are less than 30, hence none of the samples satisfy the normal condition.

More can be learned about the Central Limit Theorem at https://brainly.com/question/24663213

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Answer:

N/A

Step-by-step explanation:

Please help me with this math problem!! Will give brainliest!! :)

Answers

Answer:

A. 17

B. 16

Step-by-step explanation:

F(5)

5 > 2 so you plug the 5 into 3x+2

F(-2)

-5 < -2 < 2 so you plug the -2 into (x-2)^2

What is the slope of a line perpendicular to the line whose equation x+y=3. Fully simplify your answer

Answers

keeping in mind that perpendicular lines have negative reciprocal slopes, let's check for the slope of the equation above

[tex]x + y =3\implies y=-x+3\implies y=\stackrel{\stackrel{m}{\downarrow }}{-1}x+3 \impliedby \begin{array}{|c|ll} \cline{1-1} slope-intercept~form\\ \cline{1-1} \\ y=\underset{y-intercept}{\stackrel{slope\qquad }{\stackrel{\downarrow }{m}x+\underset{\uparrow }{b}}} \\\\ \cline{1-1} \end{array} \\\\[-0.35em] ~\dotfill[/tex]

[tex]\stackrel{~\hspace{5em}\textit{perpendicular lines have \underline{negative reciprocal} slopes}~\hspace{5em}} {\stackrel{slope}{-1\implies \cfrac{-1}{1}} ~\hfill \stackrel{reciprocal}{\cfrac{1}{-1}} ~\hfill \stackrel{negative~reciprocal}{-\cfrac{1}{-1}\implies 1}}[/tex]

Help me pls which one

Answers

Answer:

C . 0.1

Step-by-step explanation:

There are nine lines between 0 and 1

The one the red dot is one is 0.1





Find two numbers whose difference is 30 and whose product is a minimum.

Answers

Answer:60-30 I guess

Step-by-step explanation:n60-30=30

what is the answer to (2x -3) / 4 = 9

Answers

Answer:

[tex]x=\frac{39}{2}[/tex]

Step-by-step explanation:

[tex]\frac{2x-3}{4}=9\\ \\2x-3=36\\\\2x=39\\\\x=\frac{39}{2}[/tex]

Maria makes 9 dollars for each hour of work. Write an equation to represent her total pay p after working h hours.

Answers

Answer: p = 9h

Step-by-step explanation:

     If she makes 9 dollars of every hour of work, this will be a linear equation. We will write it as the following:

      p = 9h

Answer:

9h/p

Step-by-step explanation:

9 x # of hours = total pay

$9 is the dollars for each hour, so you multiply that by how many hours Maria works. You will get the total pay.

can someone help me with this question? Thank you!

Answers

Answer:

i hope this can help you!

Find the total value of the investment after the time given. $480 at 9% compounded monthly for 7 years​

Answers

[tex]~~~~~~ \textit{Compound Interest Earned Amount} \\\\ A=P\left(1+\frac{r}{n}\right)^{nt} \quad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{original amount deposited}\dotfill &\$480\\ r=rate\to 9\%\to \frac{9}{100}\dotfill &0.09\\ n= \begin{array}{llll} \textit{times it compounds per year}\\ \textit{monthly, thus twelve} \end{array}\dotfill &12\\ t=years\dotfill &7 \end{cases} \\\\\\ A=480\left(1+\frac{0.09}{12}\right)^{12\cdot 7}\implies A=480(1.0075)^{84}\implies A\approx 899.14[/tex]

helppppppppppppppppppppppppp

Answers

The answer is c thats what i think

Goran wants to find the average height of students in the 9th grade at Northside Highschool. So he will use the height of 50 students in the 9th grade to find the average height.

Explanation: pounds - currency/weight, ounces - volume of water, centimeter - height/length, grams - mass, inches - height

Solution:

(a)

1) centimeters

2) inches

(b) Solution: Randomly pick 50 students from the 9th grade and measure their heights.

83 + (25) : 5 > 32 + 42

Answers

Step-by-step explanation:

83 +(25)/5 >32 + 42

Simplify 83 + (25)/5= 108/5

Simplify 32 + 42: 74

108/5>74

Therefore the solution is false

PLEASE HELP!!!!!!!!!!!!!!

Answers

In a circle, the arc is two times the length of the angle.

EFG = 98°

98 x 2 = 196

Minor arc EG = 196°

Hopefully this helps :)

caleb is choosing a bank from the two banks below in an average month he writes 12 checks use his debit card 10 times and uses the atm six times how much caleb send on his monthly bank fees at state bank six times

Answers

Based on the number of times that Caleb writes checks, uses his debit card, and uses the ATM, his monthly bank fees are $11 and $15.70 at NeoBank and Arbor Bank respectively.

What are Caleb's bank fees?

The question is incomplete so I will use a similar question to answer it.

Caleb's fees at Neobank would be:

= (12 checks x 0 per check) + (10 debt card uses x 0 per use) + (6 ATM uses x 1 per use) + 5 Monthly fee

= 0 + 0 + 6 + 5

= $11

Caleb's fees at Arbor Bank:

= (12 checks x 0.10 per check) + (10 debt card uses x 0.25 per use) + (6 ATM uses x 2 per use) + 0 Monthly fee

= $15.70

Find out more on bank fees at https://brainly.com/question/25160447.

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The given two-way table shows the number of passengers, by type, on the Ferris wheel at an amusement part for its first two runs on a Sunday morning.

First Run
Second Run Total
Children 122 146 268
Adults 183 219 402
Total 305 365 670

Based on the data in the table, what is the value of P(Adult|Second run) rounded to the nearest thousandth?

Answers

The two-way table is an illustration of probability, and the value of P(Adult|Second run) is 0.600

How to determine the probability?

The probability to calculate is given as: P(Adult|Second run)

This means:

The probability that an Adult is selected given that the adult runs the second run

The formula to solve this is:

P(Adult|Second run) = n(Adult and Second run)/n(Second run)

From the table, we have:

n(Adult and Second run) = 219

n(Second run) = 365

So, we have:

P(Adult|Second run) = 219/365

Evaluate

P(Adult|Second run) = 0.600

Hence, the value of P(Adult|Second run) is 0.600

Read more about probabliity at

https://brainly.com/question/251701

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Answer:

The value of P rounded to the nearest thousandth would be 0.6

Hope this helped!

On March 1st Kendra’s checking account had a balance of $325.31. She wrote a check for $24.85, withdrew $40 from the ATM, and deposited $15. What was Kendra’s balance after these transactions?

Answers

Answer:

275.46

Step-by-step explanation:

She has $325.31

she writes a check for $24.85

she withdrew $40

and deposited $15

so do 325.31-24.85-40+15

and that equals

275.46

Write cos 32° in terms of sine.
cos 32° = sin

Answers

[tex]\cos32^{\circ} \\\\=\sin(90-32)^\circ~~~~~~~~~~~~~~;[\cos \theta = \sin(90- \theta)]\\\\=\sin 58^{\circ}[/tex]

Find the surface area of the rectangular prism

Answers

Answer:

126 mi²

Step-by-step explanation:

Surface Area of a Rectangular Prism :

SA = 2(bh + lh + lb)SA = 2(3 × 5 + 6  × 5 + 6 × 3)SA = 2(15 + 30 + 18)SA = 2(63)SA = 126 mi²

will give brainliest look at pitcure

Answers

Answer:

x = 90°

Step-by-step explanation:

From the meaning of figure

30² + 2x° + (2x - 30)° = 360°

4x° = 360°

x = 90°

HOPE THIS HELPS AND HAVE A NICE DAY <3

If 3x^2+3y^2 = 42 and xy = -15, find the value of (x-y)^2

Answers

Answer:

3x² + 3y² = 42

3 ( x² + y² ) = 42

x² + y² = 14

xy = -15 ( given )

(x-y)² = x² + y² - xy

14 - ( -15 )

14 + 15

29

Find the area of a polygon

Answers

Answer:

32.71cm² is the area

Elsie is going to flip a coin and spin a spinner. The coin has a heads and a tails. The spinner has four equal parts that are yellow, blue, red, and green. What are the chances that Elsie gets heads and red on the spinner?


A. 1/8

B. 1/6

C. 1/4

D. 1/2

Answers

Answer:

1/8

Step-by-step explanation:

.5x.25=.125

1 divided by 8 equals .125

Answer:

Step-by-step explanation:

Answer:

1/8

Step-by-step explanation:

.5x.25=.125

1 divided by 8 equals .125

Use the following data set to answer questions 1-8: 13, 19, 7, 12, 21, 18, 15 1. Calculate the mean. Round to the nearest tenth.​

Answers

Answer:

Mean = 13.3

Step-by-step explanation:

Mean = Sum of numbers    =  13 + 19 + 7 + 12 + 21 + 18 + 15 + 1  =  106 = 13.25

          Amount of numbers                          8                                    8

13.25≈13.3

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