Mathematics Middle School

Which equation can be used to find the surface area of the cylinder?

r= 6 cm

h = 8 cm

S= 28(8)2 +2 (12)(6)

O S=2(6)? +2(6)(8) *

O S=212)2 + 23412)(8)

S = 2846)2 +27(6)(8)

Answers

Answer 1

Answer:

S = 2π(36) + 2π(6)(8)

S = 2(3.14)(36) + 2(3.14)(6)(8)

Step-by-step explanation:

The surface area of a cylinder is the sum of the area of the base and the lateral area. A cylinder has 2 circular base .

Surface area = 2πr² + 2πrh

surface area = 2πr(r + h)

where

r = radius

h = height

surface area = 2πr(r + h)

r = 6 cm

h = 8 cm

The equation to find the surface area is represented below.

Surface area = 2πr² + 2πrh

S = 2π (6²) + 2π (6)(8)

S = 2π(36) + 2π (6)(8)

Assuming π is given as 3.14 the equation will be as follows

S = 2(3.14)(36) + 2(3.14)(6)(8)

Related Questions

PLS HELP Consider the following table. Is the relationship proportional? Explain your answer.

i made the chart here


X value Y value

-2, -27

1, 12

4, 57

10, 147

Answers

Answer:

I think it 4 and 57 because it's not going to - and it not going to be too high

The answer is 4,57, you welcome

Banana Cupcakes
makes 10 cupcakes

1 cup granulated sugar

cup vegetable oil

1 large egg

4 tablespoons sour cream

2 medium-sized ripe bananas, mashed

1 cups all-purpose flour

1 teaspoon baking soda

teaspoon salt

1 teaspoon vanilla extract

pinch of nutmeg

You will use the recipe above to answer the following questions:

This recipe serves 10, but you need to serve 30. What number will you need to multiply the amount of each ingredient by to adjust the recipe? How did you determine this number?
How much vegetable oil do you need for 30 cupcakes?
How much flour do you need for 30 cupcakes?
What is the difference in the amount of vanilla extract you would need for 30 cupcakes?
What is the difference in the amount of salt you would need for 30 cupcakes?
In the real world, even though you make adjustments to a recipe to accommodate the number of people you need to serve, you sometimes round the amount of an ingredient instead of using an exact amount. Which ingredient would it make more sense to round rather than coming up with the exact amount? Why?

Answers

Answer: Hey give me 1 hour and ill answer it I'm doing odessyware rn so Ill get back to you later appreciate yo patients.

Step-by-step explanation:

Here we have a recipe that works for 10 serves.
Then, if we want to make 30 servings, we need to use that recipe 3 times. (because x*10 = 30, then x = 30/10 = 3)
This would be equivalent to multiply each ingredient by 3.
for 30 cupcakes we need:
3 cups of vegetable oil.
3 cups of all-purpose flour
(because for each one of these ingredients we needed only 1 cup to make 10 cupcakes).
for 10 cupcakes we need 1 teaspoon of vanilla.
for 30 cupcakes we need 3 teaspoons of vanilla, the difference is 3 - 1 = 2.
So the difference is 2 teaspoons.
About which quantities we should round are those where we may have mixed numbers or big numbers.
For example, we have 4 tablespoons of sour cream for 10 servings, then for 30 servings we should have:
3*4 = 12 tablespoons.
We could round this down to 10 tablespoons.

Hope this helped

I almost broke my brain doing this so can you give me brainliest answer please thank you

Which inequalities would have an open circle when graphed? Check all that apply.
t Less-than-or-equal-to 25
-2.5 Less-than-or-equal-to m
x > 5.4
One-half less-than x
x > 0

Answers

An open circle is used to graph strict inequalities, which means the inequality does not include the value at the boundary. The inequalities that would have an open circle when graphed are:

x > 5.4

One-half less-than x

x > 0

All of the options that are just LESS THAN are open circled

if an inequality states less than OR equal to that means the circle will be closed when graphed

i need help with this question

i need help with this question
i need help with this question

Answers

Answer:

1) 9/20

2) 5/11

Step-by-step explanation:

For the first question: We read the number "0.45" as "45 hundredths," and we write it as the fraction 45/100. Of course, since 45 and 100 share the common factor 5, we can reduce this fraction by dividing the numerator and denominator by 5 to get the reduced form 9/20.

For our second problem, we need to perform a bit of "mathematical surgery" to find the appropriate fraction for x = 0.454545... First, the dots tell us that this fraction is repeating - those 45s will keep going on and on forever. When we multiply x by 100, then, we move the decimal two places to the right, but the repeating part still remains, giving us

\(100x=45.454545\dots\)

From here, we can "surgically remove" the repeating bit using our original value of x:

\(100x-x=45.454545\dots-0.454545\dots\\99x=45\)

And from here, we just have to divide both sides of the equation by 99 to solve for x:

\(99x=45\\x=45/99\\x=5/11\)

Answer: 4/9

Step-by-step explanation:

please help me i will give brainliest to first person to anwser.

please help me i will give brainliest to first person to anwser.

Answers

A. 1607.7

First we start with the formula for cylinders v=(pi)r(squared)h filled in Thats v=(3.14)(8 squared) (8) which brings us to the answer 1607.68 but you must round to the nearest tenth aka 1607.7
please help me i will give brainliest to first person to anwser.

Answer:

The first option, V ≈ 1607.7 in²

Step-by-step explanation:

Find the volume of the given cylinder.

\(\begin{center}\framebox{\parbox{4cm}{\textbf{Volume of a Cylinder:}\\[2ex]The volume of a cylinder with radius $r$ and height $h$ is given by the formula:\\[2ex]\center{$V = \pi r^2 h$} \\ \\}}\end{center}\)

Given:

r = 8 in

h = 8 in

π = 3.14

Find:

V = ?? in³

\(\hrulefill\)

Now solving,

Substitute the given values into the formula:

=> V = (3.14)(8)²(8)

Using a calculator to simplify:

=> V = 1607.68 in²

Rounded to the nearest tenth:

∴ V ≈ 1607.7 in²

Thus, the first option is correct.

Can you do this please?

Can you do this please?

Answers

Answer: 1/6

Step-by-step explanation:

First, you have a 1/3 chance of picking 1. Second, you have only 2 and 3 left, which means you have a 1/2 chance of picking a number less than 3. Since you have to multiply these two probabilities, and 1/3x1/2=1/6, the answer is 1/6. Hope this helps!

The answer is 1/6 because 1/3x1/2=1/6

A scuba diver is 15.5 feet below the surface of the water. If the diver continues to swim downward at a rate of 2.5 feet per second, what is her location, in feet, relative to the surface after 712 seconds? feet

A scuba diver is 15.5 feet below the surface of the water. If the diver continues to swim downward at

Answers

The answers is: 33

33 is the integer that represents her location relative to the surface after 7 seconds.

And 33 feet far the diver have to go to return to the surface.

Step-by-step explanation:

Given:

A scuba diver is 15.5 feet below the surface of the water.

The diver continues to swim downward at a rate of 2.5 feet per second.

Now, to find the integer represents her location relative to the surface after 7 seconds.

And to find how far does the diver have to go to return to the surface.

So, to get the integer represents her location relative to the surface after 7 seconds.

Initial depth = 15.5 feet.

Distance traveled down = 7 × 2.5 = 17.5 feet.

Final depth of water surface = Initial depth + Distance traveled down.

Final depth of water surface = 15.5 feet + 17.5 feet.

Final depth of water surface = 33 feet.

Thus, 33 is the integer represents her location relative to the surface after 7 seconds.

Now, to get how far does the diver have to go to return to the surface:

As, the diver goes to 33 feet down to the surface.

Thus, the diver to return she have to go through the same distance.

So, to return to the surface she need to go to 33 feet far.

Therefore, 33 is the integer that represents her location relative to the surface after 7 seconds.

And 33 feet far the diver have to go to return to the surface.

33! hope this helped

1. Triangle XYZ has angle XYZ=42 degrees, YZX= 50 degrees and YXZ= 88 degrees. What is the midsize side?

Answers

Answer:

YZX

Step-by-step explanation:

HELP ASAP
The interior angles formed by the sides of a quadrilateral have measures that sum to 360°.

What is the value of x?

Enter your answer in the box.

HELP ASAPThe interior angles formed by the sides of a quadrilateral have measures that sum to 360.What

Answers

Answer: x= 34

Step-by-step explanation:

Given: The measurement of the angles of the quadrilateral are as

First angle=88°

Second angle=108°

Third angle= 2x°

Forth angle =(3x-6)°

Now, The interior angles formed by the sides of a quadrilateral have measures that sum to 360°.

Therefore,

HELP ASAPThe interior angles formed by the sides of a quadrilateral have measures that sum to 360.What

Answer: x=59

Step-by-step explanation: first you would do (2x+3)×2+2x=360°

Which simplifies to 6x+6=360°

then solve to get x=59°

then substitute the x=59°

Which will then add up to 360°

In a right triangle the length of a hypotenuse is c and the length of one leg is a. Find the length of the other leg b, if:

c=13, a=5

Answers

Answer:

12

Step-by-step explanation:

a^2+b^2=c^2. This is the pythagorean theorem.

c^2-a^2=b^2.

Substitute c and a

13^2-5^2=b^2

169-25=b^2

144=b^2

sqrt144=b

b=12.

Hope this helps plz hit the crown :D

Step-by-step explanation:

C^2=A^2+B^2

C^2=13 A^2=5 B^2=?

13^2=5^2+B^2

169-25=B^2

B^2=144

\( \sqrt{144} \)

B=12

Help with this math, please. It's just one question.

Help with this math, please. It's just one question.

Answers

Answer:

Hello! Answer: 116.64

Step-by-step explanation:

What I did was multiplied 5.4 by 7.2 by 6 and we get a total of 233.28 then we just divide by 2 so...

233.28 ÷ 2 = 116.64 HOPE THAT HELPS!

Answer:

Step-by-step explanation:

To find the volume of a three dimensional shape, you can multiply all three dimensions(length, width, and height).

Volume = 5.4 * 7.2 * 6

Volume = 233.28

If you round to the nearest tenth place, your answer is 233.28 inches cubed . However, if you think about a triangle, the area is base times height divided by two. Similarly, you have to divide the volume by two to get your final answer. Thus, your final answer is (C) 116.64

Use the distributive property to rewrite the expression as a multiple of a sum of two numbers with no common factor. 30 + 4

Answers

Answer:

30 = 10 + 20  4 = 2 +2

Step-by-step explanation:

10 + 20 + 2 +2 = 34

10 + 2 and +2 has to equal 24

If there are 27 lollipops and 54 candy bars for a gift bag, fill out all of the possible ratios of lollipops to candy bars that could be made.

Answers

the ratio is 1 : 2. hope this helps

Answer:

1:2

Step-by-step explanation: 54 divided by 27 is 2 so 1 lollipop is 2 candy bars!

Please help me inno what im doing

Please help me inno what im doing

Answers

Answer:

-1/2 -1

Step-by-step explanation:

Yo can someone help me out

Yo can someone help me out

Answers

Answer:15

Step-by-step explanation:

answer to a division problem is what quotient means

Answer:

well all i can do is agree that it is 15 cause it is

Step-by-step explanation:

yes its 15 it took me a min to get it but yes its 15

Which expression is equivalent to (4x−3y4)−2?
negative quantity 16 times x raised to the sixth power end quantity over y raised to the eighth power
−16x6y8
1 over quantity 16 times x raised to the sixth power times y raised to the eighth power end quantity
x raised to the sixth power over quantity 16 times y raised to the eighth power end quantity

Answers

Answer:

1/16x^-6y^8

Step-by-step explanation:

Help ASAP!! I'll give brainliest, it's not that hard I just don't feel like I can do it right now!

Find the area

Help ASAP!! I'll give brainliest, it's not that hard I just don't feel like I can do it right now!Find

Answers

Answer:

45,864

Step-by-step explanation:

14x26x26=45,864

Which expression gives the distance between the points (1, -2) and (2, 4)?

Which expression gives the distance between the points (1, -2) and (2, 4)?

Answers

Answer: D

Step-by-step explanation:

The expresion of distance is \(d=\sqrt{(x_1-x_2)^2 +(y_1 -y_2)^2}\)

Multiply the pairs of numbers and match them with their products. Tiles (-5)(4.2) (-7)(-3) (4) (5) (2.5)(-9) Pairs 22.5 21 -22.5 -21 111

Answers

Here are the pairs matched with their products:

- (-5)(4.2) matches with -21

- (-7)(-3) matches with 21

- (2.5)(-9) matches with -22.5

Pairs (4) and (5) do not have corresponding products in the given options.

The products of the given pairs of numbers are:

(-5)(4.2) = -21

(-7)(-3) = 21

(4)(5) = 20

(2.5)(-9) = -22.5

So, the pairs of numbers and their products are as follows:

(-5)(4.2) = -21 matches with -21.

(-7)(-3) = 21 matches with 21.

(4)(5) = 20 matches with 20.

(2.5)(-9) = -22.5 matches with -22.5.

I hope this helps!

Which scenario can be modeled by the linear function
y = -15x + 500?

A. The temperature on Jupiter is
15℉ and increases by 500℉ every day.

B. There is a population of 500 giraffes in Western Africa that decreases by 15 giraffes each year.

C. A carpet cleaning service charges $500 plus an additional $15 for every hour.

D. A membership fee for a movie streaming service is free, but each rental costs $15.

Answers

I think the answer is C
The answer is a because it is able to be modeled unlike the rest

HELP LIKE RIGHT NOW PLEASE

The temperature in a greenhouse should be 67 degrees or higher. One​ morning, the heater stopped working. The temperature dropped 3 degrees before someone fixed the heater. The temperature was still at least 67 degrees when the heater started working again. How can you best describe the temperature in the greenhouse before the heater stopped​ working?

Answers

Answer:

Step-by-step explanation:

the best way to describe the temperature in the greenhouse before the heater stopped working is that it was " was atleast 73 degrees "

At the 2022 Winter Olympics, one country won a total of 150 medals. A circle graph of the medals is shown.

a circle graph titled 2022 Winter Olympic Medals, with three sections labeled gold 20 percent, silver 30 percent, and bronze 50 percent

How many silver and bronze medals were won?

Answers

Answer:80

Step-by-step explanation:

50 + 30 = 80

80 silver bronze and medal were won

hows you day going:)
When you woke up -
Around lunch-
Now-

Answers

Answer:

its going ok so far

Step-by-step explanation:

I NEED HELP PLEASEEEE

I NEED HELP PLEASEEEE

Answers

Answer:

D

Step-by-step explanation:

a,b,c are the same thing just in different forms so d is the right one.

also a is suppose to be a/1 i think for question d

The answer to your question is D

Find the surface area of this triangular prism:

Find the surface area of this triangular prism:

Answers


144 cm^2

Bottom 32 + slant 40 + 2 sides 24 each + back 24
6cmx8cm=48cm
48cm/2=24cm
24x4cm=96cm
Answer=96 cm

PLEASE ANSWER AS FAST AS YOU CAN BUT PLEASE GET THE RIGHT ANSWER!!!

PLEASE ANSWER AS FAST AS YOU CAN BUT PLEASE GET THE RIGHT ANSWER!!!

Answers

Answer: (-3,-8)

Step-by-step explanation: opposite of (3,-8)

It’s (-3,-8) because (-3,-8) is the opposite of (3,8)

whats the surface area?

whats the surface area?

Answers

Answer:

  1108 in²

Step-by-step explanation:

You want the total surface area of the pentagonal prism shown.

Base area

The area of each of the two pentagonal bases is the sum of the area of the yellow rectangle and the area of the triangle above it. That sum is ...

  A = LW +1/2bh

  A = 5(12) +1/2(12)(9) = 12(5 +9/2) = 114 . . . . square inches

Lateral area

The lateral area of the prism is the sum of the areas of the 5 rectangles. That sum will be the product of the perimeter of the pentagonal base and the distance between bases.

  LA = (12 +5 +11 +11 +5)(20) = (44)(20) = 880 . . . . square inches

Total area

The total surface area of the figure is the sum of the two base areas and the lateral area:

  SA = 2(114 in²) +880 in² = 1108 in²

The surface area of the composite figure is 1108 in².

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whats the surface area?

Alan has to pay Robin $48, but he has only $36 with him. Alan overdraws the remaining amount from the bank to pay Robin. After paying Robin, what will Alan's account balance be?

Answers

-12 I think. I hope this helps.

Answer:

$-12

Step-by-step explanation:

First, we subtract to see how much money Alan still owed.

48 - 36 = 12

Next, we subtract this number to Alan's account balance because this is the amount of money he needs to borrow from the bank, and which we know to be 0.

0 - 12 = -12

Alan's account balance after paying Robin will be $-12

You have a pizza with diameter 12
2
3 in., and a square box that is 12.65 in. across. Write 12
2
3 as a decimal. Can you fit the pizza inside the​ box?
What is the decimal expansion for 12
2
3​?
A.12.6
B.12.65
C.12.6
D.12.66
pls help me

Answers

Answer:

D is the right choice and no you cannot fit the pizza inside the box.

Step-by-step explanation:

D is the answer because to turn 2/3 into a decimal you would divide 2 by 3 and the answer you would get would be 0.66666666666...You would then add 12 to the answer and get 12.6666... Once you get this answer you would round it to the hundredths to get 12.67 but since that is not an option you could use D, 12.66 inches.

Answer:

I believe the answer is D.

Step-by-step explanation:

GOOGLE

ANSWER FAST YO

An English test has 20 questions. A student answers 75% correctly.

How many questions does the student answer correctly?

Enter your answer in the box.

_____ questions

Answers

Answer:

The student answers 15 answers correctly.

Answer:

15

Step-by-step explanation:

hope it helps

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