A cylinder has a height of 4 inches and a diameter of 18 inches. Which equation can be used to find the total surface area of the cylinder in square inches?
A-S=2π(9) + π(9)´2
B-S=π(9)´2 (4)
C-S=2π(9)(4) + 2π(9)´2
D-S=π(9)(4) + π(9)´2

Answers

Answer 1

The equation to find the total surface area of the cylinder is S = 2π(9)(h) + 2π(9)².

As per the question, the diameter of the cylinder is given as 18 inches, so we can calculate the radius (r) by dividing the diameter by 2:

r = 18 inches / 2 = 9 inches

The height of the cylinder is given as 4 inches.

To find the total surface area of a cylinder, we can use the following equation:

Total Surface Area = 2πrh + 2πr²

Now we can substitute the values into the equation to find the total surface area:

S = 2π(9)(h) + 2π(9)²

Therefore, the required equation is S = 2π(9)(h) + 2π(9)².

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Related Questions

A rectangle has a length of 5x + 2 ft and a width of 2x + 11 ft.

Write an expression to model the area of the rectangle.

Show work, please!

Answers

Answer:

A = length * width

A = 5 (x+2)

A = 5x+10

I'm SO SORRY

Hey! Can someone help me?

Answers

Answer:

C) 180

Step-by-step explanation:

y = 105 (because of alternate interior angles)

105 + x = 180

x = 75

x + y

105 + 75

180

7th grade math angle homework

Answers

i’m pretty sure it’s c!

Which best represent the simplified relative frequency of winning 9 out 15 games?

A. 3/5
B. 5/3
C. 9/15
D. 15/9

Answers

Answer:

i think the answer is A

Step-by-step explanation:

9/15 simplified is 3/5

Answer:

best represent the simplified relative frequency of winning 9 out 15 games:9/15=3/5

A membership at a yoga studio costs $35 per month.
Write an equation for the cost of the membership, c, that you pay if you keep your membership for m months.

Answers

Answer:

c times m

Step-by-step explanation:

hope this helps :b

If a membership for a yoga studio costs $35 ea. month, then here's the equation we set up.
c - Cost of membership
m - Months we want to keep it.
35 * m = c

Example:
Since the membership is $35 per month, let's say we want to keep it for 5 months. The equation will look like this:
35 * 5 = $175

There are 25 questions in a quiz.
Every correct answer scores 3 points.
Each incorrect answer loses 2 points.
A question not answered scores 0 points.
It is possible to finish the quiz with a negative score.
a) What is the maximum score you could get on the quiz?
b) What is the minimum score you could get on the quiz?
c) A student answers 15 questions.
10 are correct. How many points does he score?
d) Another student answers 21 questions.
6 are correct. How many points does she score?​

Answers

Answers of the quiz are as follows

A. 75

B. -50

C. 20

D. -12

We have been given that -

Number of questions= 25

Correct answers= x and score= 3

Incorrect answers= y and score= -2

Not answered= z and score= 0

We can calculate the score as:

A) What is the maximum score you could get on the quiz?

Maximum score one can get on the quiz if he / she correct all i.e. -

25 × 3 = 75.

B)  What is the minimum score you could get on the quiz?

Minimum score one can get on the quiz if he / she correct all i.e. -

25 ×-2 = -50.

C)  A student answers 15 questions.10 are correct. How many points does he score?

Scored points = (10 × 3) + (5 × -2)

= 30 -10

=20 points

D) Another student answers 21 questions. 6 are correct. How many points does she score?

= 6 × 3 + (15 × -2)

= 18-30

= - 12 points

Hence, the answer are a- 75 , b- -50 , c - 20, d- -12.

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Consider the following inequality
Select the values that are in the solution set of this inequality. Select all that apply.
Select the objects by clicking on the tile. Clicking on a selected object will deselect it.

Answers

Answer:

3.25 and 4

Step-by-step explanation:

2y + 1/2 > 2y - (5/4y - 9/2)

2y + 1/2 > 3/4y + 9/2

1 1/4y > 8/2

y > 3.2

of the choices, only 3.25 and 4 are greater than 3.2

(3.2 is not greater than 3.2)

Answer:

3.25

Step-by-step explanation:

The volume of a cylinder is 80 cubic centimeters. If the diameter and
height of the cylinder are multiplied by 4/5, what is the volume of the new
cylinder?

Answers

Answer:2 yds and h

Step-by-step explanation:

The volume of the new cylinder will be equal to 40.96 cubic centimeters.

What is the volume of a cylinder?

The amount of space inside a cylinder is its volume. You can find it by dividing the base area by the height.

The formula to calculate the volume of the cylinder is given below:-

V = πr²h

Given that volume of a cylinder is 80 cubic centimeters. The diameter and height of the cylinder is multiplied by 4/5. The new volume will be:-

Vi= πr²h = 80 cubic centimeters.

The new volume will be calculated as:-

Vn= π (4/5r)²(4/5)h

Vn = (64 / 125 )  πr²h

Vn = (64 / 125 ) x Vi

Vn = (64 / 125 ) x 80

Vn = 40.96 cubic centimeters.

Therefore, the volume of the new cylinder will be equal to 40.96 cubic centimeters.

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0=pi/4 radians identify the terminal point and tan 0.

a. terminal point (2square/2,2square/2); tan0=1

b.terminal point (square3/2,1/2);tan0=square3/3

c.terminal point (2square/2,square2/2);tan0=1/2

d.terminal point (1/2,3square/2);tan=3square

Answers

Answer:A

Step-by-step explanation: I did the quiz

The terminal point of the 0=pi/4 is (2/√2 and 2/√2) and the value of tan0  is 1.

What is a terminal point?

The terminal point of a circle or circular path is the measure of the angle in degrees or radians over the circle, at the endpoint on the coordinate plane.

The equation for the angle is given as,

[tex]\theta=\dfrac{\pi}{4}\rm radians[/tex]

The terminal point and tan 0 has to be found out.As, the value of pi is 180 degrees. Put this value in the above expression as,

[tex]\dfrac{\pi}{4}=\dfrac{180}{4}=45^o[/tex]

Now, as the rotation of it clockwise from the x-axis in quadrant 1to get the degrees of the angle to the terminal point.

Let this is unit circle with radius 1. Therefore, from the unit circle attached below,

[tex]y=\sin(45)\times1=\dfrac{2}{\sqrt{2}}\\x=\cos(45)\times1=\dfrac{2}{\sqrt{2}}[/tex]

[tex]\tan (45)=1[/tex]

Hence, the terminal point of the 0=pi/4 is (2/√2 and 2/√2) and the value of tan0  is 1.

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5x^2 + 19x + 12=0
how do i figure this out

Answers

Answer:

x=−4/5 or x=−3

Step-by-step explanation:

Step 1: Factor left side of equation.

(5x+4)(x+3)=0

Step 2: Set factors equal to 0.

5x+4=0 or x+3=0

x=−4/5 or x=−3

Which shape has no parallel sides? (2 points)

Group of answer choices

a quadrilateral with one small square in each of the four corners, and arrows going in the same direction for each of the opposite sides

a quadrilateral with one small square in each of the four corners, and single arrows going in the same direction for one pair of the opposite sides and double arrows for the other pair of opposite sides

a quadrilateral with sides of different lengths

a quadrilateral with single arrows going in the same direction for one pair of the opposite sides and double arrows for the other pair of opposite sides

Answers

Answer: a quadrilateral with sides of different lengths.

Parallel sides are marked by arrows (single or double) btw

Option (C) is the correct option.

What is quadrilateral?

"In geometry, a quadrilateral is a four-sided polygon, having four edges (sides) and four corners (vertices). If the sides are represented by arrows, then the side is parallel to each other. A quadrilateral with sides of different lengths, may not have the sides parallel to each other".

For the given situation,

From the definition, a quadrilateral with sides of different lengths has no parallel sides.

Hence, option (C) is the correct option.

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What's 3(5x + 4) (I’m on a time limit

Answers

Answer:

15x + 12

Step-by-step explanation:

3(5x + 4)

15x + 12

3 · 5x = 15x

3 · 4 = 12

Combine them:

15x + 12

Answer:

3(5x + 4)

15x + 12

3 · 5x = 15x

3 · 4 = 12

15x + 12

SOMEONE HELP please!!!! *ill mark brainliest

Answers

Answer:

-12 degrees

Step-by-step explanation:

the graph

30 degrees hope it helps

La multiplicación (-5)(6) obtenemos como resultado

Answers

Answer:

-30

Step-by-step explanation:

Helllllllpppppp ASAP

Answers

answer is b. 105 degrees

explanation:
a straight line is 180 degrees.
35+40=75
180-75=105

Answer:

D.B

Step-by-step explanation

40+35= 75+105= 180

(edited)

Which justification can be used to demonstrate the graph is correct?

Answers

The justification (D) shading is to the left because (0, 0) does not satisfy the inequality option (D) is correct.

What is inequality?

It is defined as the expression in mathematics in which both sides are not equal they have mathematical signs either less than or greater than, known as inequality.

We have inequality:

[tex]\rm x+3.5 < \dfrac{1}{10}(y-2)^2[/tex]

If plug (0, 0)

0 + 3.5 < 4/10

Which is not true.

Thus, the justification (D) shading is to the left because (0, 0) does not satisfy the inequality option (D) is correct.

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Help? please do not answer randomly

Answers

Answer:

x = 4.5

Step-by-step explanation:

Given a segment joining the midpoints of 2 sides of a triangle, then

the segment is half the length of the 3rd side, that is

5x = 0.5 × 45 = 22.5 ( divide both sides by 5 )

x = 4.5

hii please help i’ll give brainliest

Answers

i think the answer would be 1/2 but i’m not sure if that’s what it’s asking

Round 287.32 to whole number

Answers

Answer: 287

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Answer:

287

Step-by-step explanation:

since we are rounding to a whole number, the number would be depending on .3

3 is less than 5 so round down

287

Twelve eggs cost $2.04 how much would 18 eggs cost?

Answers

Answer:

18 eggs would cost $3.06 :)

Step-by-step explanation:

Answer:

If 12 eggs cost $2.04, then figure out how much 1 egg costs. You do that by dividing the total by the amount = 0.17. Take that number and multiply by how many eggs and you'll get the total which is $3.06

Plzz help i really need it will mark brainiest. don't do it for points plzz

Answers

Answer:

A

Step-by-step explaanation:

Answer: i think its c

Step-by-step explanation:

What is the measure of each angle if x = 13?
A. 42°, 38°
B. 527, 26°
C 429, 269
D. 527, 38°
The measures of two angles are 4x° and (2x + 12) °

Answers

52, 38
hope that helps!! pls mark brainliest ☺️

how do you solve this?

Answers

I’m pretty sure it’s 29°
Explanation:

The degree in total is 180

151 degree + x degree= 180

x= 180-151= 29 degrees

Answer= 29 degrees

Please fast and explain!!!!

Answers

since we know that 40% = $20. we can understand that 80% = $40. since books and savings combine to 40%. this means books and savings mean $20. now that we have found how much 80% of money she has. we can find the remaining. 100% - 80% = 20%. we can divide our ratio 40% = $20 by 2 too see how much money is 20%. in which is %10

now we add up and get $50 in total.

hope this helps :D

HELPP ILL GIVE BRAINLESS
Which inequality represents all values of x for which the quotient below is
defined?
VX+1 + 33 -
A. XS3
B. -1 sx<3
C. -1 sxs3
D. X2-1

Answers

Answer:

Step-by-step explanation:It's c bestie ,;

Answer:

The answer is C

Step-by-step explanation:

I took the quiz and looked it up just to make sure

What's the volume?
Please help

Answers

The answer is 14 2 /3, if the area of the rectangle face is 7 1/3 then you just multiply by the height.

please help i’ll give brainliest

Answers

Answer:

decomposer

Step-by-step explanation:

[tex]\frac{33}{4-\sqrt{5} }[/tex]

Answers

The answer I got was: 12 + 3/5

Sorry I didn’t have that symbol thing on my phone so i had to use a slash.
Hope this helps :)

44⁷×55+76÷79+80
i am can't solve this question​

Answers

Step-by-step explanation:

Cumulative frequency can also defined as the sum of all previous frequencies up to the current point.

So, 48+24=72

So, the missing cumulative frequency is . 72

Answer:

the missing cumulative frequency is . 72

Step-by-step explanation:

how do you solve:
f(x) = x^2 - 6x + 8

I need to understand how to solve this so please show work, thank you!

Answers

Answer:

Hopes this SS Helps you

Step-by-step explanation:

XOXO

KIT

Answer:

x = 2, x = 4

Step-by-step explanation:

Begin by letting f(x) = 0 , that is

x² - 6x + 8 = 0

Consider the factors of the constant term (+ 8) which sum to give the coefficient of the x- term (- 6)

The factors are - 2 and - 4 , since

- 2 × - 4 = + 8 and - 2 - 4 = - 6 , then

(x - 2)(x - 4) = 0

Equate each factor to zero and solve for x

x - 2 = 0 ⇒ x = 2

x - 4 = 0 ⇒ x = 4

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