The volume of the above cylinder is 21m find the radius of the circular end

The Volume Of The Above Cylinder Is 21m Find The Radius Of The Circular End

Answers

Answer 1

Answer:

0.75m

Step-by-step explanation:

The volume of a prism is:

the area of the cross section × length

In this case the cross section is the circle so the formula is

v = πr²h

volume = 21m³

height or length = 12m

Sub in the values:

21 = πr² × 12

1.75 = πr² (I divided both sides by 12)

0.5570423008 = r² (I divided both sides by π)

r = 0.74635... (I square rooted both sides)

r ≈ 0.75m (to 2 d.p)


Related Questions


From the graph, write the linear equation in slope-intercept form

Answers

Answer:

y = -3x + 1

Step-by-step explanation:

slope intercept form -> y=mx+b

you can find your slope, m, by doing rise over run ( up 3, left one -> -3/1 )

you can find your y-intercept, b, by just looking at the y axis ( 0,1 -> 1 )

from there you just plug in the values

y = m ( slope ) x + b ( y-intercept )

y = -3x + 1

Helpp! who ever gets it right gets brainliest!
1. K+9, When k = 5
Answer:
2. 4x - 3, when x = 2
Answer:
3. t/5 + t, when t = 15
Answer:
4. 5x2 + 3x, when x = 2
Answer:
5. 6y - 5, when y+7
Answer:
6. 4x2 + 3x, when x = 6
Answer:
7. 56/x + 3y, when x = 4 and y = 3
Answer:
8. 4d2 - 3d, when 4 = -2
Answer:
9. + 3p - 5t + 3, when p= 2 and t = 1
Answer:
10. 3(w-4) 2, when w + -5
Answer:

Answers

Answer:

1. 14

2. 5

3. 18

4. 16

5. 37

6. 26

7. 23

8. -10

9. 4

10. -54

Some questions are wrong so i answered what i understood. And giving me brainest will be helpful.

a plane is a BLANK figure. The intersection of two planes that do not coincide (if it exists) is a BLANK.

Answers

Answer: blanck

Step-by-step explanation:

Ricardo invests $8650 in an account that earns 3.9% interest compounded weekly. What is the total amount of his investment after 9 years? Round your answer to the nearest dollar.

Answers

Based on the amount he invested and the period of his investment, Ricardo's investment worth in 9 years will be $12,286.

The period of compounding is weekly so you first need to convert the interest rate to a weekly rate as well as the period of investment:

= 3.9% / 52 = 3.9/52%

= 9 years x 52 weeks per year = 468

Value of the investment after 9 years is:

= Amount x ( 1 + rate) ^ no. of periods

= 8,650 x (1 + 3.9/52%)⁴⁶⁸

= 12,285.599

= $12,286

In conclusion, the investment would be worth $12,286.

Find out more at https://brainly.com/question/10582389.

Joseph compared the graphs of two functions. The first function wasf(x)=−2x+6. The second function fits the values in the table: x 2 5 8 11 y 2 -4 -10 -16 What is the distance between the y-intercepts of the two functions?

Answers

Answer: No difference

Step-by-step explanation:

The function f(x)=-2x+6 will produce the very same points in the table.

x y y calculated

2 2 2

5 -4 -4

8 -10 -10

11 -16 -16

The points are all on the line y=-2x+6. They describe the same line, which will have the same intercept.

how many solutions can a quadratic have
a.0 solution
b.1 solution
c.2 solutions
d.3 solutions

Answers

It can have C. 2 solutions.

17
1 point
Write the equation of the line that passes through the points (-2.3) and (-2.5).

Answers

Answer:

pa pic nyou nalang kung may pic plss

PLEASE HELP ME IM BEGGING YOU

Answers

Answer:

look at the photo..................

find the domain and range of the following functions​

Answers

Answer:

Step-by-step explanation:

X values are the domain and y values are range.

Domain = {-1,8,1,-2 }

Range = {3,2,5}

Lily buys 378 crystals for 6 dollars,
What is the cost of 109 crystals?

Answers

About $1.73. Since 378 cost six dollars, The price of one equates to be about 0.0158. Using this knowledge, we can multiply by 109 to get roughly 1.7301

Find m FGN
See picture and give explanation please! Thank you!

Answers

Answer:

m<FGN=(7x+18)º=88º

Step-by-step explanation:

(7x+18)º=(6x-10)º+38º

x=10

so

m<FGN=(7x+18)º=88º

hope this is the answer you're looking for.

I need to solve for A.
Please help! Thank you!

Answers

Step-by-step explanation:

125 is vertically opposite to the interior angle of triangle

then X+40+X+31+125=180(sum of angle of triangle is 180)

the we get X= -22

no need for explanation just answer

Answers

Answer:

19

Step-by-step explanation:

Find the values of x and y.
т
>
75°
45
(6x + 3)

Answers

Answer:

X=12°

y=60°

Step-by-step explanation:

75=6x+3

x=12°

y=180-(45+75)

y=60°

convert to standard form 2.9x10 to the power of 3 plssss help

Answers

Answer:

To write a linear expression in standard form, rearrange the terms in alphabetical order.

[tex]2.9[/tex] × [tex]10^3[/tex]

But, if you need to write it in scientific notation, the answer is 2,900.

What is the missing side length of this right triangle? Type the answer in the box.
13 in.
5 in.
х
1

Answers

Answer:

13in

Step-by-step explanation:

remember it's the same angle width.

The original price of a DVD is represented by the variable x. If the DVD is discounted 45%, write a subtraction expression and a multiplication expression to represent its sale price.

What is the multiplication expression?

Answers

Answer:

Sale price = x - 0.45x

Step-by-step explanation:

you can earn $33 in 8 hours. At this rate, how much would you earn in 5 hours​

Answers

Answer:

20 pounds and 62p

Step-by-step explanation:

33 divided by 8 then you times it by 5

Bags are filled with bird food at a rate of 420 grams per second.
How many 20 kg bags can be completely filled in 4 hours?

Answers

Answer:

302

Step-by-step explanation:

420(grams per sec)x60(seconds in a min) = 25,200(grams per min)

25,200x60(min in an hour) = 1,512,000(grams an hour)

1,512,000/1,000(grams in a kilogram) = 1,512 (kilograms per hour)

1,512/20 (size of bag) = 75.6 (bags filled per hour)

75.6x4(hours elapsed asked by the question) = 302 bags completly filled in 4 hours

Multiply out and simplify:
(3x + 4) (2x - 1)

Answers

Answer:

6x²+5x-4

Step-by-step explanation:

[tex](3x+4)(2x-1)\\=6x^2-3x+8x-4\\=6x^2+5x-4[/tex]

Answer:

[tex]6x^{2}+5x-4[/tex]

Step-by-step explanation:

Apply the distributive property

[tex](a+b)(c+d)=ac+ad+bc+bd[/tex]

Therefore,

[tex](3x+4)(2x-1)=3x*2x+3x(-1)+4*2x+4(-1)[/tex]

[tex](3x+4)(2x-1)=6x^{2} +5x-4[/tex]

will mark brainliest ​

Answers

Answer:

115

Step-by-step explanation:

Simplify
[tex] \frac{ {x}^{2} - 9 }{ {x}^{2} - 3x} [/tex]
CORRCET ANSWER+EXPLANATION SHALL BE MARKED BRAINLIEST+RECEIVE 34 POINTS

Thanks xx​

Answers

Here you go, if you have any questions please ask

please help I will make you Brainliest if correct (show working)​

Answers

1.) X= 4m - 1.2m = 2.8m

Split the irregular shape into 2 (A and B)

A= 4m x 3.8m = 15.2m^2

B= 3m x 2.8m = 8.4m^2

2.) Total area = A + B
= 15.2 + 8.4 = 23.6m^2

What is the best choice for the equation of the line of best fit shown?
Note that this estimate would be a strong prediction since it is an interpolation (between data points) and the graph shows fairly strong negative correlation.
a) y = -2.5x + 25
b) y = -1.5x +23
c) y = 1.5x + 23
d) y = -2.5x + 15

Answers

Answer:

What is the best choice for the equation of the line of best fit shown?

b) y = -1.5x + 23

What would the value of y be for a point at x = 8?

b) 11

Did this on EDGE!

The best choice for the equation of the line shown in the graph is y = -1.5x + 23. the correct option is B.

What is an equation?

The equation in mathematics is the relationship between the variables and the number and establishes the relationship between the two or more variables.

Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.

In the given graph the data is varying along the line y = -1.5x + 23. Where y is the dependent variable and x is the independent variable.

Therefore, the correct option is B.

To know more about equations follow

https://brainly.com/question/2972832

#SPJ5

Multiply.

2.5(-4)





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Answers

Answer:

x = 5/8 = 0.625

Step-by-step explanation:

Omar owns a sandwich shop, and his best selling sandwich is the BLT. When making BLT sandwiches, it takes 3/4 of a pound of
bacon to make 4 sandwiches. He uses 1 1/20 pounds of bacon for every 2 tomatoes used and 5 tomatoes for every full head of
lettuce used
If Omar is making enough BLT sandwiches to use 2 full heads of lettuce, then he is going to use (answer) pounds of bacon
and will make a total of (answer) BLT sandwiches

Answers

ok so its confusing

5 tomatoes = 1 head of lettuce

2 heads of lettuce = 10 tomatoes

2 tomatoes = 1/20 pound of bacon

2x5=10

1/20x5/1=5/20=1/4

1/4 a pound of baon

.75(3/4

-----------

.25(1/4)

3

1/4 a pound of bacon

a heck of alot of cholesterol

and 3 BLT sandwiches.

and a lot of clogged arteries  

The answer above me is right I got it correct

A woman sold a sari for Rs 1960 at a profit of 20% At vbal price should she self: 30 gain 15562​

Answers

I can answer it but what’s the end part 15562

how do you subtract integers​

Answers

Answer:

1: First, keep the first number (known as the minuend) 2 .Second, change the operation from subtraction to addition

2. Third, get the opposite sign of the second number (known as the subtrahend)

4: finally, proceed with the regular addition of integers

Step-by-step explanation:

Example: 1: (6-(-4)

6+4=10

(10)

2: (-1-(-9)

-1+9=8

(8)

what is 2/4 added to 1/3?​

Answers

5/6. fine the common factor of both 4 and 3 and multiple and than simplify.

Johanna's monthly salary was increased by 4% to $27,560. What was the salary before the increase?​

Answers

Answer:

$15,500

Step-by-step explanation: Trust

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