Sum of the radius of the base and height of a cylinder is 21 cm and the curved surface area of the cylinder is 616 sq.cm,find the total surface area of the cylinder.
PLEASE HELP ME AS FAST AS POSSIBLE

Answers

Answer 1

Step-by-step explanation:

lets radius be r and height be h,

r+h=21 -----(1)

curved surface area

2×pi×r×h=616 -----(2)

use simultaneous eqn to solve for r and h.

total surface area of cylinder= 2×pi×r×h + 2×pi×r²

= ans if im not wrong


Related Questions

read the question below please

Answers

Answer: 900 times

Step-by-step explanation:

1 kilometer = 1000 meters

1.8 kilometers = 1000 × 1.8

1.8 kilometers = 1800 meters

2 meters = 1 click

1800 meters = 1800 ÷ 2

1800 meters = 900 clicks

The wheel will click 900 times when Ty walks 1.8 kilometers.

Hope this helped!

Answer:

It will click 900 times

Step-by-step explanation:

We know that there are 1000 meter in 1 km.

So 1.8 km is basically

1.8*1000=1800

So 1800 meters

And every 2 meters it clicks once

So 1800/2=900

So 900 times in 1.8 km

What reason justifies 3x>3

Answers

Answer:

3x is greater then 3 because 3x has 3 of x and 3 is plain 3

Anyone can help me out with this question real fast?

Answers

Answer:

Linear equation

Step-by-step explanation:

Given

The attached

Required

Determine the type of function

We start by checking for linear function

A linear function is such that:

[tex]m = \frac{y_2 - y_1}{x_2 - x_1}[/tex]

The above represents the slope

For any pair of coordinate points, the slope must be constant.

We have:

[tex](x_1,y_1) = (-3,-16)[/tex]

[tex](x_2,y_2) = (-2,-13)[/tex]

The slope (m) is:

[tex]m = \frac{-13-(-16)}{-2-(-3)}[/tex]

[tex]m = \frac{-13+16}{-2+3}[/tex]

[tex]m = \frac{3}{1}[/tex]

[tex]m = 3[/tex]

Take another pair:

[tex](x_1,y_1) = (-1,0)[/tex]

[tex](x_2,y_2) = (-10,-7)[/tex]

The slope (m) is:

[tex]m = \frac{-7-(-10)}{0-(-1)}[/tex]

[tex]m = \frac{-7+10}{0+1}[/tex]

[tex]m = \frac{3}{1}[/tex]

[tex]m = 3[/tex]

The slope remains constant

Hence, it is a linear function

PLEASE ANSWER ASAP FOR BRAINLEST!!!!!!!!!!!!!!!!
A bank is offering 2.5% simple interest on a savings account. If you deposit $5000, how much interest will you earn in one year?

Answers

Answer:

$125

Step-by-step explanation:

To solve this, we need to find 2.5% of 5,000. To do this, we multiply 5,000 by .025. This gets us 125. That means you earn $125 worth of interest in one year.

you would earn $125 dollars in interest after one year!

Let y=[ 3 1 ]y=
[3
1] and u=[ 8 6 ]u=
[8
6].
Compute the distance from y to the line through u and the origin.

Answers

Answer:

2√5

Step-by-step explanation:

Given the coordinates y(3,1) and u(8,6)

We are to find the distance between the two coordinates

Using the formula:

D = √(x2-x1)²+(y2-y1)²

D = √(8-3)²+(6-1)²

yu = √(5)²+(5)²

yu = √25+25

yu = √50

yu = 2√5

Hence the distance between the two coordinates is 2√5

PLEASE ANSWER FAST!!!!!!!!Construct ΔABC with AB = 3.8 cm, BC = 4.5 cm and CA = 5 cm.​

Answers

Step-by-step explanation:

I will write the steps of construction,

1. Draw line segment BC = 4.5cm

2.Using a compass and radius 3.8 cm draw an arc

keeping the point at B.

3.Again taking the radius as 5cm draw an another arc intersecting the previous arc.

4. Join both the lines at that arc and you will get

Triangle ABC.

Skye's Ice Cream Shoppe is Mario's favorite place to get ice cream. Unfortunately, because he was late arriving, his friends had already ordered. He did not know what they had ordered for him. They told him that is was either a waffle cone or a sundae and that the ice cream flavor was apricot, chocolate, or blackberry.

The total number of possible outcomes is?

Answers

Answer:

6

Step-by-step explanation:

there are six outcomes:

waffle cone apricot

waffle cone chocolate

waffle cone blackberry

sundae apricot

sundae chocolate

sundae blackberry

Please help me with this

Answers

Answer:

Since you are graphing the line of x, the line should be vertical where it is placed 2 units before the center of the graph.

Solve in terms of x: z = x + y

Answers

Answer:

[tex]z = x + y \\ \huge \boxed{x = z - y}[/tex]

4
A roulette wheel consists of 18 red slots, 18 black slots, and 2 green slots. A player can wager $1 that a marble
will land in a red slot, in which case the player would gain a $1. If the marble lands in a slot that isn't red, then
the player loses their $1 wager. Let X represent the player's gain from a random $1 wager on red. Here's the
probability distribution of X along with summary statistics:
A piz
size
Xro
prot
Lose
Win
-1
1
X = gain ($)
P(X)
20/38
X
18/38
px - $0.05
Mean:
P
Standard deviation:
Ox $1.00
Suppose a player decides to wager $5 instead of $1, so the possible outcomes become either losing or winning
$5. Let Z represent the player's gain from a random $5 wager on red.
The
What are the mean and standard deviation of Z?
any
prot
on a
μ28
dollars
Wha
dollars
Uy

Answers

Answer: -0.25 and 5

Step-by-step explanation:

Khan

Please help quickly I only have 5 mins!!!

Answers

PLEASE MARK BRAINLIEST!

Answer:

Let's go step-by-step ⇒

[tex]\frac{10x + 4}{7} = 8[/tex]

= [tex](\frac{7}{1})\frac{10x+4}{7} = \frac{8}{1}(\frac{7}{1})[/tex]

= [tex]10x+4=56[/tex]

= [tex]10x = 52[/tex]

= [tex]x = 5.2[/tex]

Your answer is x = 5.2

I hope this helps!

- sincerelynini

Jaylin has a scale model of a train. 2 cm in the lotto represents 3 feet in a real train. The height of the model train is 10.2 cm. What is the height of the real train?

Answers

First divide 10.2cm by 2, then multiply that by three. 15.3 feet high

A nickel is placed flat on a table. What is the maximum number of nickels that can be placedaround it, flat on the table, with each one tangent to it?
(a) 4
(b) 5
(c) 6
(d) 7
(e) 8

Answers

Answer:

6

Step-by-step explanation:

any help
plz
i need som body help

Answers

the least amount of dozens they can buy is 9. the cost will be $13.41

How do I ask a quaestion

Answers

Answer:

Step-by-step explanation:

Hahahhhh Lol

Eva bought one share of a company's stock for $42 on Monday. Over the next two days, the value of the stock changed, as described below. •change in value on Tuesday: -$15 • change in value on Wednesday: +$15 which number line best represent the value of Eva’s stock over the three-day period?

Answers

Answer:

The first number line is correct.

Step-by-step explanation:

To find the number which best represents Eva's stock, we look into the text, and find the changes:

Monday: Stock bought at $42.

Tuesday: Change of -$15, so now it is worth $42 - $15 = $27

Wednesday: Change of +$15, so now it is worth $27 + $15 = $42

The number line which represents the decrease, and then the increase, is the first one.

6. Expand the expression 4(x + 5).
PLEASE HELP DUE TOMORROW

Answers

Answer:

4x+20

Step-by-step explanation:

Using the distributive property you multiply the terms outside by the terms inside. So the expression will be like this

4(x)+4(5)

When simplified the answer is

4x+20

Answer:

Step-by-step explanation:

Here you go mate

Step 1

4(x + 5)  equation

Step 2

4(x + 5)  simplify the expression

(x+5)4

(x+5)(4)

answer

20+4x

50 POINTS!!!! PLEASE HELLPPP!!!
HURRY PLS

Hugh made a recipe that yields 8 and 1 over 2 cups. If each serving is 1 over 4 cup, which expression will help Hugh determine the number of servings his recipe will yield? (1 point) 8 and 1 over 2 ⋅ 1 over 4 8 and 1 over 2 + 1 over 4 8 and 1 over 2 - 1 over 4 8 and 1 over 2 ÷ 1 over 4

Answers

Answer: It says 25 points brat but whatever.

Step-by-step explanation:→ The number of servings his recipe will yield = (Total recipe yields) ÷ (Each serving) = 8(1/2) ÷ (1/4) = 8 and 1 over 2 ÷ 1 over 4. SO that means it would be option d

May someone help me understand 2 step equations


3y + 6 = 12

Answers

Now that you have the problem set up you need to combine like terms. There is only one “y” so you leave that alone. There two numbers that are by themselves, so you would combine them. The only thing is that since 6 is on the opposite side you need to somehow put it to the other. What’s the opposite of adding? Subtracting! Now you have 3y=6. Okay so now you need to get y by itself. You divide three where 3 is so 3/3=1 so now the y is by itself. Then divide 6/3 to get 2!

Answer:

 = 2

Step-by-step explanation:

3  +  6  =  1 2

subtract 6 from both sides of the equation

3  +  6  −  6  =  1 2  −  6

3  =  1 2  −  6

3y/3 = 6/3

y = 6/3

y = 2

i'm taking the same thing :)

The sum of two numbers is 66 and the difference is 14. What are the numbers!?

Larger number :

Smaller number!? ​

Answers

Answer:

66 and 52?

Step-by-step explanation:

What is the value of x in simplest radical form?

Answers

Answer:

D. [tex] x = \frac{5*\sqrt{2}}{2} [/tex]

Step-by-step explanation:

Reference angle = 45°

Length of Opposite side = x

Hypotenuse length = 5

Applying trigonometric ratio, we have:

[tex] sin(45) = \frac{x}{5} [/tex]

Multiply both sides by 5

[tex] 5*sin(45) = \frac{x}{5}*5 [/tex]

[tex] 5*sin(45) = x [/tex]

[tex] 5*\frac{1}{\sqrt{2}} = x [/tex] (sin 45 = 1/√2)

[tex] \frac{5}{\sqrt{2}} = x [/tex]

Rationalize

[tex] \frac{5*\sqrt{2}}{\sqrt{2}*\sqrt{2}} = x [/tex]

[tex] x = \frac{5*\sqrt{2}}{2} [/tex]


PLS HELP ASAP THANKS

Answers

Answer:

(5,-1)

x=5

y= -1

Step-by-step explanation:

To solve this we're going to solve for one variable in either equation

so we have

x+y=4

We can subtract y and 4 from both sides to get

x-4= -y

Then divide by -1 so that y will be a positive number

-x+4=y

We can plug this in for y in the other equation

2x -2(-x+4)=12

Distribute the -2 and get

2x+2x-8=12

Combine like terms and add 8 to get

4x=20

divide and get x=5

Plug in x=5 into the first equation to get

5+y=4

subtract 5 to get y= -1

Our answer is (5,-1) or x=5 y= -1

I checked this on desmos and the math is correct

Answer:

The solution to the system of equations will be:

x = 5, y = -1

Step-by-step explanation:

Given the system of equations

x + y = 4

2x - 2y = 12

Isolate x for x + y = 4:    x = 4 - y

substitute x = 4 - y in the equation 2x - 2y = 12

2(4-y) - 2y = 12

8 - 2y - 2y = 12

8 - 4y = 12

4y = 8 - 12

4y = -4

divide both sides by 4

4y/4 = -4/4

y = -1

substitute y = -1 in x + y = 4

x + y = 4

x + (-1) = 4

x - 1 = 4

x = 5

so

(x, y) = (5, -1)

Therefore, the solution to the system of equations will be:

x = 5, y = -1

is this correct btw I put 1400​

Answers

Answer: Yes

Step-by-step explanation: The answer of 1400 is correct.

What I did is I found the area of the figure assuming it was a rectangle, then I subtracted the corners that were removed.

1800 - 150 - 100 - 150 = 1400

Answer:

Yup Its Correct

Step-by-step explanation:

The Calculated Area Al adds up to 1400

(-25 + 4²) × 7
.pemdas​

Answers

(-25 + 16)(7)
(-9)(7)
-63
using pemdas, your answer would be -63 (simplified)

Steve sold 252 fruit basket for a school fundraiser. Evie aold 25 fruit baskets for each 100 baskets that steve sold. How many fruit baskets did evie sell?


PLEASE NEED HELP AND STEPS

Answers

Answer: 63

Step-by-step explanation:

From the question, we are informed that Steve sold 252 fruit basket for a school fundraiser while Evie aold 25 fruit baskets for each 100 baskets that Steve sold. This means that Evie sold 25/100 = 1/4 of what Steve sold.

Therefore, the number of fruit baskets sold by Evie will be:

= 1/4 × 252

= 63

Can anyone help me with this

Answers

Answer:

D. 8x³ + 4x⁷ - 3x³ + 3x² - 2x + 9

Step-by-step explanation:

(8x⁸ - 9x³ + 3x² + 9) + (4x⁷ + 6x³ - 2x)

Apply distributive property to eliminate parentheses

8x⁸ - 9x³ + 3x² + 9 + 4x⁷ + 6x³ - 2x

Collect like terms

8x⁸ + 4x⁷ - 9x³ + 6x³ + 3x² - 2x + 9

8x³ + 4x⁷ - 3x³ + 3x² - 2x + 9

i giveeee brainlilst

Answers

Answer:

yes 17-17=8=9=23/23/234/23=-234

Step-by-step explanation:

Lisset throws a softball from a height of 4 feet, with an initial velocity of 60 feet per second at an angle of 45 degrees with respect to the horizontal. what is the height of the ball when it is 100 feet away from Lisset?

Answers

24ftghhjvjvpycyfyyuxugi

plss helpp !! beainliest and extra points

Biking at 10 mph, it takes Kristen 1/2 hour to reach the train station to go to work. Kristen then takes the train to work, and it takes another 1/2 hour for her to get to work when the train travels 24 mph. How far does Kristen travel to work?
A. 65 miles
B. 27 miles
C. 17 miles
D. 16 miles

Answers

Answer: 17 miles

.5hr x 10Mph + .5 x 24mph = 17 miles

Step-by-step explanation:

On Saturday, the vacation resort offers a discount on water sports. To take

a surfing lesson and go parasailing costs $130. That day, 25 people take

surfing lessons, and 30 people go parasailing. A total of $3,650 is collected.

What is the discounted price of each activity?

Answers

Answer:

Let x be the discounting price of a surfing lessons per person

Let y be the discounted price of a surfing lessons per person

The cost of taking a surfing lesson and go parasailing is $130

x + y = 130--------------(i)

25 people take

Surfing lessons, and 30 people go parasailing and a total of $3,650 is collected

25x + 30y = 3650--------------(ii)

We solve for y using equ (i):

y = 130 - x ------------(iii)

Substitute equ (iii) to equ (ii) and solve for x

25x + 30(130 - x) = 3650

25x + 390 - 30x = 3650

-5x = -250

-x = 50

We solve for y using equ (iii):

y = 130 - x

y = 130 - 50

y = 80

So, the discounted price to take a surfing lesson is $50 and the discounted price to go parasailing is $80

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