Mathematics High School

A cylinder has a base radius of3 and a hight of 20m what is its volume in cubic m,to the nearest tenths

Answers

Answer 1

Answer:

hi

Step-by-step explanation:

Answer 2

Answer:

V = 565.5

Step-by-step explanation:

Cylinder Formulas in terms of r and h

Calculate the volume of a cylinder: V = πr2h Calculate the lateral surface area of a cylinder (just the curved outside): L = 2πrh Calculate the top and bottom surface area of a cylinder (2 circles): T = B = πr2 Total surface area of a closed cylinder is: A = L + T + B = 2πrh + 2(πr2) = 2πr(h+r)

Related Questions

What is the value of x in the equation 1.5(x + 4) – 3 = 4.5(x – 2)?

Answers

Step-by-step explanation:

1.5x + 6-3= 4.5x- 2

1.5x+3=4.5x-2

we transposed

4.5x-1.5x= 3+2

3x= 5

we divide both sides by 3

3x/3= 5/3

x= 5/3

Mia solved the equation 4x - 8 = 2(2x-4) and ended up with -8 = -8. what does this mean?
a) one solution
b) many solutions
c) no solutions
d) she did it wrong

Answers

Answer:

D

Step-by-step explanation:

She should have ended up with 4x-8= 4x-8

When you put everything on the proper side everything cancels out

Write an equation in slope-intercept form for the line that has a slope of
4
and passes through (0, 7).
5

Answers

Answer:

D. y = -4/5x + 7

Step-by-step explanation:

y = -4/5x + b

7 = -4/5(0) + b

7 = 0 + b

7 = b

Renting a kayak costs $10 per hour. renting a canoe cost $5 per hour plus a $7 fee. Which equation could be used to determine h, the number of hours for which they each cost the same ?

Answers

10(h)+5(h)+7, because 10 and 15 are charged per a hour, so they have a h(house). 7 dollars is a fee that you only pay once. I hope this helps :)

This year, the girl scouts sold 2 more than four times as boxes of cookies as they did last year. This year they sold 402 boxes.
How many boxes did they sell last year?

Answers

Answer:

100

Step-by-step explanation:

they sold 2 more that 4 times as many, so subtract two

402-2=400

then divide by four

400/4=100

Hope this helps!

fully simplify (2x+y)^2

Answers

Answer:

4

2

+

4

+

2

Step-by-step explanation:

The answer is: 4x^2 + 4xy + y^2



If Susie takes a test with 50
questions and gets of them
5
correct, how many questions did
she miss?

Answers

she would get 45 wrong
50 - 5 = 45
She missed 45, because there was 50 questions and she only got 5 correct 50-5=45

After two years, the ash tree grew 51 inches. How much does it grow each year? How tall is in in 5 years? Use the double number line to find your answer.

Answers

Answer: 25.5 inches per year, in 5 years it will be 127.5 inches.

Step-by-step explanation:

it grows 25.5 inches every year, so the math for this is 25.5 x 5

(5 representing the years) and you get an answer of 127.5in.

127.5 in 5 years and 25.5 per year

Which fractions are equivalent to
62/10

Answers

Answer:

31/5

Step-by-step explanation:

Divide both the numerator and denominator by 2.

HELP MEEEE !! I’m stuck

Answers

Answer:

10

Step-by-step explanation:

because it is what it is i just did the math

An exploring ship is pulling up a diver at the rate of 25 feet per minute. The diver is currently 100 feet below sea level. How deep was the diver 15 minutes ago?

Answers

the answer is ur mom

Can someone help me do this

Answers

Answer:

71 degrees

Step-by-step explanation:

It is quite hard to see the question but I believe we are looking for the unknown angle E (correct me if I am wrong and I will revise my answer!)

A ratio is a _______________ of two quantities.

Answers

Answer: Comparision

A ratio is a comparison of two quantities.

,  Hope this helps :)

Have a great day!!

Answer:

a comparison of two quantities by division.

Help please!! i will give brainliest

Answers

Answer:

[tex]for \: - 1 \leqslant x < 1 \: y = - 3 \\ for \: \: 1 \leqslant x < 3 \: \: y = 1 \\ for \: 3 \leqslant x \leqslant 5 \: y = 5[/tex]

2. Ms. De Los Santos bought 5 3/7 gallons of ice cream for the 6th grade Wakanda Day celebration. If each scholar is served 1/16 gallon of ice cream, what is the greatest number of scholars that can be served?
​

Answers

So we convert both to improper fractions.
38/7 and 1/16
Now we make them the same denominator
608/112 and 7/112
Now we divide 608 by 7
Maximum amount which can be given is 85 scholars.
Give me brainliest answer!

Look at the angle. Which description is true

Answers

This angle is greater than 90 degrees

Answer:

The angle is greater than 90 degrees, which is also known as an obtuse angle.

PLS HELP WILL MARK AS BRAINLIEST

Answers

Answer:

26. the y intercept is -6

27. the y intercept is 2

28. the y intercept is -3

29. I cant answer because it is cut off in the picture...

Step-by-step explanation:

These equations follow a simple formula- the slope formula

y=mx+b

In this formula:

b is the y intercept

m is the slope that is multiplied by x

hope this helps:)

please crown me brainliest!!!

Quadratic shifted left by
1 unit vertical stretch by a
factor of 1.

Answers

Answer:

1(x+1)^2

Step-by-step explanation:

824 is between which two numbers ?
​

Answers

Answer:

823 and 825

Step-by-step explanation: i doubt this is what you meant but be more specific

What is the measure of the supplement of each angle 117º

Answers

Answer:

The supplementary angle of 117° :

= 180° – 117°

= 63°

factorise B square minus 25 ​

Answers

Answer: (b+5)(b-5)

Step-by-step explanation:

both b^2 and 25 are square numbers, so square root both of them to give b and 5, then put into brackets with a + and -

solve for k.
k(4r−5)≥12r−9

Answers

Answer:

[tex]k = \frac{12r - 9}{4r - 5} \\ [/tex]

Step-by-step explanation:

[tex]k(4r - 5) \geqslant 12r - 9 \\ k = \frac{12r - 9}{4r - 5} \\ [/tex]

someone help me im trying not to fail this year-​

Answers

Answer:

x-y=-3

Step-by-step explanation:

what is equivalent to x^4-12x^2+36

Answers

Answer: x^4-12x^2+36

Step-by-step explanation:

Help with this please

Answers

Answer: B

Step-by-step explanation: u have to simplify the 36 and the 12

Please help me!!! Will give brainliest!​

Answers

Answer:   x  = 40

Step-by-step explanation:

3x° + 36° = 156°        (since alternate interior angles are equal)

        3x°  = 120 °

           x  = 40

Find the slope of the line that passes through (6, 3) and (9, 5).

Answers

Answer:

2/3

Step-by-step explanation:

y2 - y1 / x2 - x1

5 - 3 / 9 - 6

2/3

A fence is 7 feet 6 inches high.
1 foot=12 inches
What is the height of the fence in centimetres?

Answers

Answer:

228.6 centimeters

Step-by-step explanation:

We remember that 1 inch is 2.54 centimeters.

We also know that 7 feet 6 inches is equal to 7*12+6 inches, which equals 90 inches.

So, 7 feet 6 inches is 90 inches is [tex]\boxed{228.6}[/tex] centimeters.

A plant splits into 2 new plants each week. How many plants will you have after 6 weeks?

Answers

Answer:

The answer is 12

Step-by-step explanation

6x2

Just multiply 6 by 12

For the function f(x) whose graph is shown below, what is the value of f(5)?

Answers

f(5)=2 you look at the x-axis and find 5 which is in the right side then find the point on the line that touches and you will see it’s 2.

We want to look at the given graph to estimate the value of f(5). We found that: f(5) = 2

In the coordinate axis, we can see a blue curve, which represents the function f(x).

To find the value of f(5), first, we need to locate the value x = 5 on the horizontal axis.

Once we find it, we need to move vertically until we meet the curve.

Once we meet the curve, we move horizontally until we meet the vertical axis, that intersection gives the value of the function when evaluated in x = 5.

By this method we can see that: f(5) = 2

If you want to learn more, you can read:

https://brainly.com/question/17267403

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