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olga55 [171]
2 years ago
5

The diameter of a cylindrical construction pipe is7ft. If the pipe is 36ft long, what is its volume?

Mathematics
1 answer:
Svetradugi [14.3K]2 years ago
6 0

Question:

The diameter of a construction pipe is 7ft. If the pipe is 35ft long, what is the volume. (Use 3.14 for pie and round your answer to the nearest cubic foot.)

Answer: V=pir^2h V=3.14*3.5^2*35 V=1346 cu ft

Not fully sure....

But it should be right...

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A man drove his car a distance of 315 miles in 5 hours. If counting at this rate is possible, he will travel_miles in 9 hours
quester [9]

Answer:

<em>567 miles</em>

Step-by-step explanation:

<em>(315 miles)/(5 hours) = 63 miles/hour  </em>

<em> </em>

<em>9 hours × 63 miles/hour = 567 miles</em>

3 0
3 years ago
Matthew is 7 years older then twice the age of his sister, if matthew is 13, how old is his sister
Irina18 [472]
This is subtraction an the answer would be 6

5 0
4 years ago
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3(x - 1) = 2x+9<br>¿cómo puedo resolver este problema?​
inysia [295]

Answer:

x=12

Step-by-step explanation:

3(x-1)=2x+9

3x-3=2x+9

3x-2x-3=9

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5 0
4 years ago
Write the point-slope form of the line that passes through (5,5) and is perpendicular to a line with a slope of 1/4 include all
amid [387]

<u>Answer:</u>

The point-slope form of the line that passes through (5,5) and is perpendicular to a line with a slope of \frac{1}{4} is 4x + y -25 = 0

<u>Solution:</u>

The point slope form of the line that passes through the points \left(x_{1} y_{1}\right) and perpendicular to the line with a slope of “m” is given as  

\bold{y-y_{1}=-\frac{1}{m}\left(x-x_{1}\right)} ---- eqn 1

Where “m” is the slope of the line. x_{1} \text { and } y_{1} are the points that passes through the line.

From question, given that slope “m” = \frac{1}{4}

Given that the line passes through the points (5,5).Hence we get

x_{1}=5 ; y_{1}=5

By substituting the values in eqn 1 , we get the point slope form of the line which is perpendicular to the line having slope \frac{1}{4}can be found out.

y - 5 = -4(x - 5)

y - 5 = -4x + 20

on simplifying the above equation, we get

y - 5 + 4x -20 = 0

4x + y - 25 = 0

hence the point slope form of given line is 4x + y - 25 = 0

3 0
3 years ago
Sara has $150 in her savings account. The amount in her account increases by %6 every year. If she does not put more money into
strojnjashka [21]

Answer:

$159

Step-by-step explanation:

we know that

The equation of a exponential growth function is equal to

y=a(1+r)^x

where

y is the balance in the saving account

x is the number of years

a is the initial amount

r is the percent rate of change

we have

a=\$150\\r=6\%=6/100=0.06

substitute

y=150(1+0.06)^x

y=150(1.06)^x

For x= 1 year

substitute

y=150(1.06)^1=\$159

3 0
4 years ago
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