1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
MArishka [77]
3 years ago
13

A cylindrical piece of iron pipe is shown below. The wall of the pipe is 1.25 inches thick: The figure shows a cylinder of heigh

t 14 inches and diameter 8 inches What is the approximate inside volume of the pipe?
332 cubic inches
69 cubic inches
703 cubic inches
99 cubic inches
Mathematics
1 answer:
Andreas93 [3]3 years ago
8 0

Answer: 332 cubic inches

Step-by-step explanation:

You can eliminate 69 and 99 as those answers don't make any sense. This leaves you with 703 and 332.

It says the wall of the pipe is 1.25 inches thick so you multiply that by 2 and subtract it by the diameter to get the insider diameter of 5.5

Now you just use the equation V = (3.14)(r^2)(14) where the radius is half of 5.5.

So to finalize the equation you get V = (3.14)(5.5)^2(14) which comes out to 332 cubic inches

You might be interested in
• The total rise of a set of stairs is 81.125". If there are 11 risers, what is the height of
patriot [66]

Answer:

7.375".

Step-by-step explanation:

That would be 81.125 / 11

= 7.375 ".

3 0
3 years ago
Sarah Meeham blends coffee for Tasti-Delight. She needs to prepare 160 pounds of blended coffee beans selling for $4.97 per poun
jok3333 [9.3K]
Given:
let h be the high quality bean
let c be the cheaper bean

h + c = 160
6h + 3.25c = 160*4.97
6h + 3.25c = 795.20

h = 160 - c
6(160 - c) + 3.25c = 795.20
960 - 6c + 3.25c = 795.20
-2.75c = 795.20 - 960 
-2.75c = -164.80
c = -164.80 / -2.75
c = 59.92 or 60 lbs

h = 160 - c
h = 160 - 60
h = 100 lbs

Sarah should blend 60 lbs of cheap coffee bean and 100 lbs of high quality coffee bean.
3 0
4 years ago
17 is added to a number, the result is 37 less than twice the number. Find the number
vesna_86 [32]

Answer:

x=6.67

Step-by-step explanation:

17+x=37-2x

17+x-x=37-2x-x

17=37-3x

17-37=37-37-3x

-20=-3x

-20/-3=-3x/3

6.666667=x

3 0
3 years ago
Number 1. ............................l.........
siniylev [52]
It equals 34.5600000012
8 0
4 years ago
We'll assume that the stem diameter is normally distributed. An agronomist measured stem diameter in 8 randomly selected plants
BaLLatris [955]

Answer:

The 80% confidence interval for the population mean is (2.156, 2.394).

Step-by-step explanation:

We have the standard deviation for the sample, which means that the t-distribution is used to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 8 - 1 = 7

80% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 7 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.8}{2} = 0.9. So we have T = 1.415

The margin of error is:

M = T\frac{s}{\sqrt{n}} = 1.415\frac{0.238}{\sqrt{8}} = 0.119

In which s is the standard deviation of the sample and n is the size of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 2.275 - 0.119 = 2.156

The upper end of the interval is the sample mean added to M. So it is 2.275 + 0.119 = 2.394

The 80% confidence interval for the population mean is (2.156, 2.394).

6 0
3 years ago
Other questions:
  • What numbers add up to-15 but when multiplied gives me-54
    15·1 answer
  • The distance a baseball travels when a player hits the ball varies directly with the speed with which the player swings the bat.
    11·2 answers
  • Can someone help me with this question please. I'll give the brainliest answer to whoever helps me.
    10·1 answer
  • Calculate the sample standard deviation and sample variance for the following frequency distribution of final exam scores in a s
    8·1 answer
  • Camille has eaten 18/36 pieces of candy what percent of her candy has she eaten
    8·1 answer
  • Jeff invests an amount at 4% interest compounded annually. After 3 year he has 1687.30, What was the original amount jeff invest
    8·1 answer
  • A bunch of bananas cost $4, a pineapple cost $2 more than a bunch of banana, and 4 apples cost one-half of a pineapple.
    13·1 answer
  • CAN SOMEONE HELP ME WITH THIS IT'S DUE TODAY
    15·1 answer
  • Will mark brainliest, what are the missing numbers?
    13·2 answers
  • BRAINLIEST!⚠️ QUESTION ON PIC TY
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!