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3 years ago

We use the formula V = πr2h to find the volume of a cylinder. Make h the subject of the formula.

Mathematics

1 answer:

Gennadij [26K]3 years ago

7 0

Answer:

V / ( pi r^2) = h

Step-by-step explanation:

V = pi r^2 h

Divide each side by pi r^2

V / ( pi r^2) = pi r^2 h / pi r^2

V / ( pi r^2) = h

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A card is in the shape of a rectangle. The length of the card is 7 cm

bogdanovich [222]

lol ok so

7*something or you can make it into a variable x=35

7*x=35

/7 /7

x=5.

3 0

3 years ago

The diameters of F and G are 5 and 6 units, respectively. Find each measure.

harkovskaia [24]

Answer:

Part 8) B.F=0.5 units

Part 9) A.B=2 units

Step-by-step explanation:

we have

The diameter of circle F is 5 units

The radius of circle F is r.f=5/2=2.5 units

The diameter of circle G is 6 units

The radius of circle G is r.g=6/2=3 units

Part 8) Find B.F

we know that

B.F=G.B-F.G

we have

G.B=rg=3 units

FG=rf=2.5 units

substitute the values

B.F=3-2.5=0.5 units

Part 9) Find A.B

we know that

A.B=A.F-B.F

we have

A.F=r.f=2.5 units

B.F=0.5 units

substitute the values

A.B=2.5-0.5=2 units

7 0

3 years ago

Dmitry runs 3.1 miles on Saturday,shown by the model. He runs 2.45 on Sunday. How much farther does he run on Saturday

Amiraneli [1.4K]

Answer:

0.65 miles.

Step-by-step explanation:

Dmitry runs 3.1 miles on Saturday.

He runs 2.45 miles on Sunday.

On Saturday he runs 3.1 - 2.45 = 0.65 miles farther.

7 0

3 years ago

Read 2 more answers

The first tap can fill the pool in 10 hours. When the second tap was opened, the empty pool was filled in 6 hours. How long will

NARA [144]

Answer: $15\ hours$

Step-by-step explanation:

We can use the following formula to solve this exercise:

$\frac{T}{A}+\frac{T}{B}=1$

In this case "T" is the time in hours it takes to both taps fill the pool working together, "A" is the time in hours for the first tap filling the pool alone an "B" is the time in hours for the second tap filling the pool alone.

We can identify that:

$T=6\\\\A=10$

Then, we must subsitute the known values into the formula:

$\frac{6}{10}+\frac{6}{B}=1$

And finally we must solve for "B".

Then we get:

$\frac{6}{10}+\frac{6}{B}=1\\\\\frac{6}{B}=1-\frac{6}{10}\\\\\frac{6}{B}=0.4\\\\6=0.4B\\\\\frac{6}{0.4}=B\\\\B=15$

3 0

3 years ago

Read 2 more answers

Sixth-grade students completed a random survey to determine how many songs each student has downloaded to his/her media player i

Sav [38]

Answer:

boys median:50 mean:46

girls median:33 mean:34

Step-by-step explanation: because both groups 10 scores the mean is average and median is the middle number.

i think this is the answer if I'm not wrong I tried I hope I helped.

8 0

3 years ago

Read 2 more answers