A cylinder has a volume of 45pi and a radius of 3. What is it’s height?
It’s height is _____ units.

Answers

Answer 1

Answer:

       It’s height is 5 units.

Step-by-step explanation:

[tex]V=\pi R^2\cdot H\\\\V=45\pi\\R=3\\H=??\\\\45\pi=\pi\cdot3^2\cdot H\\\\45=9H\\\\H=5[/tex]


Related Questions

someone help pls!


4x+3=5x+21

Answers

Answer:

x=-18

Step-by-step explanation:

Eli started saving money in his empty piggy bank. He inserted $1 on every Monday, $2 on every Tuesday, $3 on every Wednesday, $4 on every Thursday, $5 on every Friday, $6 on every Saturday, and $7 on every Sunday. At the end of 24 days, he opened his bank and found he had $93. On which day of the week did he start inserting money into his piggy bank?

Answers

Answer:

Tuesday

Step-by-step explanation:

Given:

Monday: $1

Tuesday: $2

Wednesday: $3

Thursday: $4

Friday: $5

Saturday: $6

Sunday: $7

And after 24 days he had $93

____

So lets convert 24 days into weeks. A week has 7 days we divide 24/7 and get 3.42857 weeks or just have it as 3 weeks and 3 days.

24 days = 3 weeks and 3 days

Now we want to know how much does Eli make in 1 week, we add all the numbers 1 + 2 + 3 + 4 + 5 + 6 + 7 = 28

Eli makes $28 in one week. And (28x3) in three weeks which is $84.

Now that we know that Eli made $84 in three weeks, we have three days left - now we calculate the difference.

93 - 84 = 9

Now these 9 dollars are split into three days. This means he started on Tuesday since Saturday is $7 and Monday is $1 and that sums it up to $8 and the first dollar was placed in his piggy bank on a Tuesday.

∆ ABC is isosceles with AB= AC= 7.5cm and BC= 0 cm .the height AD from A to BC, is 6cm . find the area of ∆ ABC what will be the height from C to AB i.e., CE​

Answers

I have attached an image of the triangle.

BC = 9 cm

Answer:

CE = 7.2 cm

Step-by-step explanation:

In the attached triangle, we see that;

AB = AC = 7.5cm

BC = 9 cm

AD = 6cm

BC = 9cm

Formula for area of triangle is given as;

A = ½bh

Where b is base and h is height.

For the ∆ ABC with BC as base,

Area = ½ × 9 × 6 = 27 m²

Similarly, For ∆ ABC with AB as base,

Area = ½ × 7.5 × CE

Now, area from earlier is 27 cm²

Thus;

½ × 7.5 × CE = 27

Multiply both sides by 2 to get;

7.5CE = 54

CE = 54/7.5

CE = 7.2 cm

Which expression is equivalent to 1/3 divided by 1/6

Answers

Answer:

The answer is A

Step-by-step explanation:

cross mutliply

1×6=6

1×3=3

divide the answers

result: 2

I hope this helps

if the measure of two angles of a triangle are 62 and 93 than the measure of the third angle is 35. true or false if false why​

Answers

Answer:

False

Step-by-step explanation:

All measures of triangle add up to 180°

[tex]A + B + C = 180[/tex]

[tex]62 + 93 + 35 = 190[/tex]

[tex]190 \neq 180[/tex]

[tex]62 + 93 + 25 = 180[/tex]

the third measure is [tex]25[/tex] not [tex]35[/tex].

plz mark me brainliest ;)

please solve this steps by step
1) (-5) - 5
2) (-10) + 11​

Answers

Answer:

1) -10

2) 1

Step-by-step explanation:

1)  (-5) - 5

- Removing the brackets won't change anything since it is subtraction, so now it will be - 5-5 which is equal to -10.

-5 -5 = -10

2) (-10) + 11

- The same case applies here since it is addition.

-10 + 11 = 1

Answer:

1) -10

2) -1

Step-by-step explanation:

[tex]( - 5) - 5 = - 10 \\ \\ ( - 10) + 11 = - 1 \: [/tex]

Rearrange t= 5s + 4 to make s the subject​

Answers

Answer:

Subject 's' in terms of 't'

  [tex]s = \frac{t-4}{5}[/tex]

Step-by-step explanation:

Explanation:-

Given that the subject 't in terms are 's'

Given that t = 5 s +4

subtracting '4' on both sides, we get

t - 4 = 5s +4-4

 t - 4 = 5 s

Dividing '5' on both sides ,we get

  [tex]\frac{t-4}{5} = \frac{5s}{5}[/tex]

   [tex]\frac{5s}{5 } = \frac{t-4}{5}[/tex]

    [tex]s = \frac{t-4}{5}[/tex]

ABCD TSVU find the value of Y

Answers

Answer:

The value of y = 7.5 and the scale factor is 2/3.

Step-by-step explanation:

To get the scale factor, let's get the ratio of 17 to 25

[tex] \frac{17}{25.5} = \frac{2}{3} [/tex]

To check if 17 really is the 2/3 of 25.5

[tex]17 = \frac{2}{3} \times 25.5 \\ 17 = \frac{51}{3} \\ 17 = 17[/tex]

Therefore, if 17 is the 2/3 of 25.5, then the line (3y-3.5) is also the 2/3 of (3y+6).

[tex]3y - 3.5 = \frac{2}{3} (3y + 6) \\ 3(3y - 3.5) = 2(3y + 6) \\ 9y - 10.5 = 6y + 12 \\ 9y - 6y = 12 + 10.5 \\ 3y = 22.5 \\ y = 7.5[/tex]

A county in the shape of a rectangle has a length of 120 miles and a width of 80 miles. The population of the county is about 300,000 people. Find the population density in people per square mile. Round your answer to the nearest whole number. ---will give brainliest hurrryyy

Answers

Answer: 31 people per square mile


Explanation: First we need to find the area of the rectangle (A=lw), which is 120*80 or 9600 square miles.

To find population density, we take the number of people and divided by square miles in this case (300,000/9600).

We then get 125/4 or 31.25.

Rounding to the nearest whole number gives us a population density 31 people per square mile

please help me with this will give you brainliest!!

Answers

Answer:

They are both 122 degrees

Step-by-step explanation:

does anyone know the answer?????

Answers

Answer:

-3x + 7

Step-by-step explanation:

she used the y-intercept as the slope and the slope as the y- intercept.

Answer:

its y= -3x+7

Step-by-step explanation:

she used the x intercept for the y - intercept and the y- intercept for the c-intercept

Find an equation of the line that contains the point (-1,3) and is parallel to the line x+3y=6.

HELLPPPPPPPPPPPPPP PLEASE

Answers

Answer:

Step-by-step explanation:

3y = -x + 6

y = -1/3x + 2

y - 3 = -1/3(x + 1)

y - 3 = -1/3x - 1/3

y - 9/3 = -1/3x - 1/3

y = -1/3x + 8/3

Please help,
7p + 2 = 5(p-4)

Answers

Answer:

-11

Step-by-step explanation:

7p +2=5p-20

7p-5p= -2-20

2p= -22

p=-11

The answer is p=-11

The steps are in the attached photo

Lainey bought a set of 20 markers for $6
What is the cost of 111 marker?

Answers

Answer:

370

Step-by-step explanation:

First find the unit rate aka price per pencil: 20 divided by 6 equals 3.333

Then find amount for all pencils

3.333 by 111 is 369.963

Then we round up to have a realistic amount of pencils to 370

Coordinates (2,5) (6,11) what's the equation of the line?

Answers

Answer:

y= 2x+1

Step-by-step explanation:

Using the general linear form y=mx+c

First find the gradient: change in y/change in x

11-5/6-2 = 6/3= 2

y=2x+c

Secondly find out c:

Use one of the coordinats

5= 2(2)+c

5=4+c

-4

1=c

y= 2x+1

Equation of the line—-> y=2x+1

A circular dining room table has a radius of 3 feet of each person sitting at the table needs about 2 feet of space, how many people will fit at the table

Answers

Answer:

need to find the area of the circular dining room table which has a radius of 3 feet of each person sitting at the table needs about 2 feet of space how many people will fit at the table 3 feet of each person sitting at table needs about two feet of space than about five people will fit at the table

Can somebody pls help me with this??? It’s due at 11:59 pm and I am stuck! Will mark any one who can help me with this as Brainiest!

Answers

Answer:

a.

Step-by-step explanation:

A proportional relationship is going to be a straight line that passes through the origin. The only graph that fits that criteria is graph a.

Answer:

a and c

Step-by-step explanation:

both of them go up linear-ly

i don’t understand explain please

Answers

Answer:

d=65

f=73

e=the one triangle =180

65+73=138

180-138=42

e=42

Step-by-step explanation:

I think so

(2x-14) = (3x-6) how do I solve this

Answers

Step-by-step explanation:

there you go that is how you solve

Answer:

x=-8

Step-by-step explanation:

    Given: 2x-14=3x-6

                    +14   +14

                     -----------

                   2x=3x+8

                   -3x -3x

                  --------------

                   -1x=8

                   ---  ---

                   -1   -1

                 -------------

                  x= -8

Hope this makes sense

Greg rented a truck for one day. There was a base fee of $20.99, and there was an additional charge of 71 cents for each mile driven. Greg had to pay $144.53
when he returned the truck. For how many miles did he drive the truck?

Answers

He drove 87.71 miles

what's 5x+6=36???????????

Answers

Answer:

x=6

Step-by-step explanation:

5*x+6=36

so 5*6=30

+6=36

Answer:

36

Step-by-step explanation:

Calculate the size of angle x.
Give your answer to 1 decimal place.
8 cm
11 cm
15 cm

Answers

Answer:

45.6° (1 d.p)

Step-by-step explanation:

Using the cosine rule;

c = √( a² + b² - 2ab Cosx)

11 =√(8² + 15² - 2 (8) (15) Cosx)

11² = 8² + 15² - 240 Cosx

11² - 8² - 15² = - 240 Cosx

-168 = -240 cosx

cosx = 0.7

x = cos⁻¹ (0.7) = 45.57 ≈ 45.6°

Answer:

45.6

Step-by-step explanation:

Angela is repainting her kitchen. she estimates that she paints 35 feet every 1/3 hour. how many feet does she paint in 1 hour?​

Answers

Answer: 105 feet(make sure to put feet)

Step-by-step explanation:if it only took her 1/3 of an hour to get 35 feet done so 35 x 3=105

Write each number in two equivalent forms as fraction, decimal, or percent.
0.29 35% 2/5
show work :D

Answers

Answer:

0.29 = 29% = [tex]\frac{29}{100}[/tex]

35% = 0.35 = [tex]\frac{7}{20}[/tex]

[tex]\frac{2}{5}[/tex]= 0.40 = 40%

Step-by-step explanation:

A cylinder has a base diameter of 20ft and a height of 5ft what is its volume in cubic ft round to the nearest tenths place

Answers

Answer:

1571 ft^3

Step-by-step explanation:

Given data

diameter= 20ft

radius= 20/2= 10 ft

Height= 5ft

Volume of cylinder = πr^2h

Substitute

V= 3.142*10^2*5

V= 3.142*100*5

V= 1571 ft^3

Hence the volume is 1571 ft^3

Answer:

1580.8 ft^3

Step-by-step explanation:

Plz help.... I will, I am offering 18 points on my other one. ( click on my profile to find it) plz help

Answers

Answer:

1)C

2)B

3)D

Step-by-step explanation:

1)C, since 160/3 does not equal to 55

2)B, since 2/8=0.25, 3/12=0.25 and so on

3)D, since 48/3=16

Hope I helped!

What is 5% lower than 40?

Answers

Answer: 38

Step-by-step explanation:

Answer:

38

Step-by-step explanation:

Let's use benchmark fractions

What is 10% of 40?

that's 40/10 which is 4

What is half of 4?

4/2 = 2

That means 5% of 40 is 2

So then we do 40 - 2 = 38

The other way we can do it is by using percent proportions:

[tex]\frac{x}{95} \frac{40}{100} \\do:\\x=\frac{95 * 40}{100}[/tex]

[tex]x=\frac{3800}{100}[/tex]

[tex]x=38[/tex]

The doctor recommended that Matt decrease thenumber of calories he consumed from 2,500 to 1,800. By what percent did the number of calories decrease?

Answers

I would say about 40 percent

Answer:

28 decrease

Step-by-step explanation:

2,500 - 1,800 = 700

700/2500 x 100 = 28

So its 28% decrease.

what is the slope of (4,-6) and (4,4)​

Answers

Answer:

Undefined

Step-by-step explanation:

m=(y2-y1)/(x2-x1)

m=(4-(-6))/(4-4)

m=(4+6)/0

m=10/0

undefined

Does anyone know the answer? 19 points if u answer + brainliest answer! :P

Answers

Answer:

first start by finding the equation and then put it into photomath and then boom theres your answer hun

Step-by-step explanation:

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The author provides examples and evidence.C. The author gives examples and restates the thesis.D. The author provides evidence from experts.excerpt adapted from Canyons of the Coloradoby John Wesley Powell The wonders of the Grand Canyon cannot be adequately represented in symbols of speech, nor by speech itself. The resources of the visual arts are taxed beyond their powers in attempting to portray its phenomenal beauty. Language and illustration combined must fail. The elements that unite to make the Grand Canyon the most sublime spectacle in nature are many and exceedingly diverse. The giant forms, which result from the sculpture of tempests through ages too long for man to compute, are wrought into endless details. To describe these forms would be a task equal in magnitude to that of describing the stars in the sky or the abundant beauties of the forest with its traceries of foliage presented by oak and pine and poplar, by beech and linden and hawthorn, by tulip and lily and rose, by fern and moss and lichen. Besides the elements of form, there are elements of color. The rainbow is not more replete with hues. But form and color do not exhaust all the divine qualities of the Grand Canyon. It is the land of music. The river thunders in perpetual roar, swelling in floods of music when the storm rains play upon the rocks, and fading away in soft and low murmurs when the infinite blue of the sky is unveiled. With the melody of the great tide rising and falling, swelling and vanishing forever, other melodies are heard in the gorges of the lateral canyons, while the waters plunge in the rapids among the rocks or leap in great cataracts. Thus, the Grand Canyon is a land of song. Mountains of music swell in the rivers, hills of music billow in the creeks, and meadows of music murmur in the rills that ripple over the rocks. Altogether it is a symphony of diverse melodies. All this is the music of waters. The adamant foundations of the earth have been wrought into a sublime harp, upon which the clouds of the skies play with mighty tempests or with gentle showers. Globe Services plans on closing its doors after one more year. During its last year in business, the firm expects to generate a cash flow of $67,000 if the economy booms and $44,000 if it does not. The probability of a boom is 30 percent. The firm has debt of $53,400 that is due in one year. That debt has a market value of $45,800 today. Ignore taxes. The current promised return on debt is __________ percent, and the expected return on debt is __________ percent. The equation for the price of a baseball card that was bought for 5 dollars and has appreciated 5% yearly. 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