8th grade geometry part 3, please explain the steps :)))

8th Grade Geometry Part 3, Please Explain The Steps :)))

Answers

Answer 1

Answer: Volume = 97.6

Step-by-step explanation:

Volume of the cone first

V = 1/3 h π r²

h = 0.7

r = 2

V = 1/3 × 0.7 × 2² × 3.14

V = 1/3 × 0.7 × 4 × 3.14

V = 1/3 × 8.792

V = 2.93

Then find the volume of the cylinder if the cone was there.

V = π r² h

r = 2

h = 8

V = 3.14 × 2² × 8

V = 3.14 × 4 × 8

V = 3.14 × 32

V = 100.48

Now you subtract the volume of the cone from the cylinder.

100.48 - 2.93 = 97.55

Rounded to the nearest tenth is 97.6

Hope this was helpful, I know it is a lot to look at but I tried my best.

Also, can I get brainliest? I worked really hard on this.


Related Questions

Find the surface are of this figure

Answers

Answer:

If I am correct, I think the surface area is 448.

Step-by-step explanation:

First start by finding the area of all the sides

Front side. 12 x 10 = 120

2 triangle sides: 8 x 10 = 80, 80 x 2 = 160

Bottom side: 6 x 12 = 72

Back side: 8 x 12 = 96

Then add up the surface area

120 + 160 + 72 + 96 = 448

Btw I don't know if I am correct, but I think this is the way you find surface area.

the surface of this figure is 448

Calculate the median of the following list of numbers: 3, 5, 2, 10, 6, 3, 7, 3

Answers

Answer: 3

Step-by-step explanation: Rearrange the numbers ascendingly - 2, 3, 3, 3, 5, 6, 7, 10

3 is in the middle, so 3 is the median.

Answer:

4

Step-by-step explanation:

put them in order: 2, 3, 3, 3, 5, 6, 7, 10

the two in the middle are 3 and 5. Between 3 and 5 is 4.

What is the value of x and y please explain will give brainliest if you give me a good explanation!!

Answers

x = 30
y = 120

30 x 4 = 120
120 + 120 = 240
240 + 120 = 360
The first number in an ordered pair is a value for x, and the second number is a value for y.

The table shows the cost of hiring a plumber for the first 3 hours of a job.

Which graph shows the points in this table?


Ps: sorry there are too many screen shots.

Answers

Answer: it's A

Step-by-step explanation:

since the cost for hiring a plumber for three hours costs $120 so in graph A the graph has more likely stopped at $120 on the y axis which can be said as the cost axis too. I'm pretty sure the answer is A!

A
The cost of working is$150

Plis help with this problem! (Screenshot attached)

"Find the surface area of each pyramid. Round to the nearest tenth if necessary."

Answers

Answer: The total surface area is 633.9

Step-by-step explanation:

12.25 times 15.75, then divide by 2 = 96.46875 (this is the area of the triangle

Then times 4 = 385.875 (Because there are four triangles

15.75 times 15.75 = 248.0625 (The area of the square)

The sum is 633.9375

Rounded = 633.9

yes because when u ok so he said yes would go

Craig bought 8 folders and notebooks for school. Folders cost 0.50 cents and notebooks cost 1.50.Craig spent a total of 6 dollars. How many folders (f) and how many notebooks (n) did he buy?

Answers

Answer:

4 of each

Step-by-step explanation:

1.50 x 4 =6

.50 x 4 =2

he bought 4 folders and 4

Answer:

6*0.50=3
2*1.50=3

So, 6 folders and 2 notebooks.

What is the answer to 6 - 1 1/2

Answers

Answer:

the answer is 0.5

Step-by-step explanation:

11/2=5.5

6-5.5=0.5

Answer: Heyaa! ~

Your Answer is... 4.5 or in exact form its, 9/2

Step-by-step explanation:

Convert the mixed numbers to improper fractions, then find the LCD and combine.

To find the least common denominator first convert all integers and mixed numbers (mixed fractions) into fractions. Then find the lowest common multiple (LCM) of the denominators. This number is same as the least common denominator (LCD).You can then write each term as an equivalent fraction with the same LCD denominator.

Hopefully this helps you! ^^

How to solve this? WILL GIVE BRAINLIEST

Answers

8x-10=6x
8x-6x=10
2x=10
X/2 10/2 = x=5
X=5 that will be your answer

PLEASE HELP!!

Hhuhuhihihi

Answers

Answer: adjacent and complimentary

Step-by-step explanation:

adjacent because they are next to each other and complimentary because they together make 90 degrees

Answer:

The answers are B and D, I did this one.

Yw guys

PLEASE HELP ASAP!!!!! a simulation by tossing a coin to model whether these puppies will be male or female. • Let heads (H) = female puppy • Let tails (T) = male puppy The results of the simulation are: 1. TTTT 6. HHHH 2. TTTT 7.HTHT 3. THTH 8. HHHH 4. HTTT 9. THTH 5. TTTT 10. HHHH What is the estimated probability that at least two of the puppies will be male?

Answers

Answer:

7/10 or 70%

Step-by-step explanation:

There has to be at least two T in each result of the simulation. This means you can also have 3 T's and 4 T's in the result.

These are the results that qualify as having at least two T's.

1. TTTT, 2. TTTT, 3. THTH, 4. HTTT, 5. TTTT, 7. HTHT, 9. THTH

That is 7 out of the 10 results which is 7/10 or 70%

70% is the correct answer

Put the following equation of a line into slope-intercept form, simplifying all fractions. 2x-10y=-20

Answers

y = 1/5x + 2


Slope-intercept form:

y = mx + b

First, you must get y alone by subtracting 2x on both sides of the equation and then dividing both sides by -10:

-10y = -2x - 20

y = -2/-10x - 20/-10


Simplify: y = 1/5x + 2

Answer: y = 1/5x + 2

Check out the workings I have done in the document I have uploaded :)

A party hat has a height of 7 inches and a diameter of 6 inches. What is the volume of the party hat in cubic inches? Use 3.14 for pie.

Answers

Answer:

65.94 in³

Step-by-step explanation:

First, we need to determine to the shape, a party hat is a cone.

The volume formula that use to calculate the cone is 1/3hπr².

Notice: h is for height and r is for radius

Using this formula, we can easily set up the equation below:

1/3 · 7 · 3.14 · (6/2)²  = 65.94 (cubic inches)

You must halved the diameter first (in this case, 6) and then square it.

So: The answer of this question is 65.94 in³

9-2x=-8-4x Its for math

Answers

Answer:

x=-8.5

Step-by-step explanation:

Combine like terms:

9+8=-4x+2x

Solve:

17=-2x

Divide:

17/-2=x

-8.5=x

Hope this Helps!

Answer:

your answer is x=-8.5

Step-by-step explanation:

Match each expression on the left with an equivalent expression on the right. Some options on the right will be used more than once.

Answers

Answer:

See below

Step-by-step explanation:

9000/100=90

1680/20=84

84000/1000=84

2700/30=90

720/10=72

1. 9000/100=90
2. 1680/20 = 84

You could use a calculator easily for every answer

pls answer my question I will mark brainliest

Answers

Answer:

V = 4000 cm^3

Step-by-step explanation:

The volume of the sphere is given by

V = 4/3 pi r^3

We are given the radius of 10 and are to use 3 for pi

V = 4/3 (3) * (10)^3

V = 4/3 *3 * 1000

V = 4000 cm^3

Its 4000 bc 4/3x3x10^3

3^4 + 4 ⋅ 5 = ____. (Input whole numbers only.)

Answers

Answer:

101

Step-by-step explanation:

3^4 = 3 * 3 * 3 * 3 = 81

4 ⋅ 5 = 4 * 5 = 20

3^4 + 4 ⋅ 5

= 81 + 20

= 101

101


Evaluate the power and multiply the numbers

PLEASE HELP ASAP!!! Which of the ten groups show at least one 8th grader?
A. 3, 7, 8, 10
B. 4
C. 1, 2, 5, 7, 8, 10
D. 1, 3, 4, 5, 6, 7, 8, 10

Answers

Answer:

1 3 4 5 6 7 8 10

Step-by-step explanation:

the numbers 7,8,9,0 represent 8th graders and the groups 1 3 4 5 6 7 8 10 all contain at least one of the numbers while the others groups dont meaning they are no 8th graders in groups 2 or 9

The correct awnser is D, 1,3,4,5,6,7,8,10

What is the area of this figure?

_______ square kilometers

Answers

Answer:

90 square kilometers

Step-by-step explanation:

1. split the figure in small definite sections

2. find the areas of the smaller sections.

3. find the sum of the areas.

Answer : 90
Step-by-step explaining
Split this figure into three different figures
The first figure will be 8x4 = 32
The second figure will be 8×6 = 48
The last figure is 2×5 = 10
Done we add 32+48+10= 90

calling brainiacs... probably some math logic question that im not getting.

Answers

The picture blurry can we get a better picture
All I need is for you to tell me what the first question is asking, which citrus fruit?

To find out if customers would prefer free texting or free internet access for their cell phones, a marketing executive at a cell phone company contacted every customer whose cell phone number started with "269" and "454". Identify the sampling method used.

Answers

Answer:

E commerce , E learning , Online games

whats greater brianliest + MAX ponits or 4 x 2160 4 x 2610

Answers

It is equal. The same either way. :)

Hey there!

PROBLEM #1. 4 * 2,160

4 * 2,160
= 2,160 * 4

= 2,160 + 2,160 + 2,160 + 2,160

= 4,320 + 4,320

= 8,640
Therefore, the answer should be: 8,640

Problem #2. 4 * 2,610
4 * 2,610
= 2,610 * 4

= 2,610 + 2,610 + 2,610 + 2,610

= 5,220 + 5,220

= 10,440

Therefore, the answer should be:

10,440


Good luck on your assignment & enjoy your day!



~Amphitrite1040:)

Help please!!
You might need to zoom in to see the photo better.
-You cant really see what 1 says but it says (The net below can be folded to make the triangular prism? Label the dimensions of the prism.)
And 8 says (Calculate the total area of the net and the surface area of the triangular prism from Problem 7. area net= surface area= ___ cm^2)

Answers

Answer:

1. Left side = 3 inches, Bottom side = 4 inches, Right side = 2 inches, Top side = 5 inches

2.  A = 6 inches²

3.  A = 8 inches²

4.  A = 10 inches²

5.  A = 12 inches²

6.  A = 36 inches²

7. Left side = 5 cm, Bottom side = 12 cm, Right side = 4 cm, Top side = 13 cm

8. A = 180 cm²

Step-by-step explanation:

1. Label the dimensions of the prism:

Left side = 3 inches

Bottom side = 4 inches

Right side = 2 inches

Top side = 5 inches

2. Area of the red rectangle:

Formula:

LH = A (Length x Height = Area)

A = 3 x 2

A = 6 inches²

3. Area of the blue rectangle:

Formula:

LH = A (Length x Height = Area)

A = 4 x 2

A = 8 inches²

4. Area of the green rectangle:

Formula:

LH = A (Length x Height = Area)

A = 5 x 2

A = 10 inches²

5. (They gave the formula of the two triangles, but the question said green rectangle?  They must've meant yellow triangles)

Area of the yellow triangles:

Formula:

2 (1/2 Bh) (2 (half of base x height))

A = 2(1/2 3 x 4)

A = 2(1/2 12)

A = 2(6)

A = 12 inches²

6. Total surface area of the triangular prism:

Formula:

LH + LH + LH + 2 (1/2 Bh) = Surface Area of the triangular prism (Area of the red rectangle + Area of the blue rectangle + Area of the green rectangle + Area of the yellow triangles = Total surface area of the triangular prism)

A = 6 inches² + 8 inches² + 10 inches² + 12 inches²

A = 36 inches²

7. Label the dimensions of the prism:

Left side = 5 cm

Bottom side = 12 cm

Right side = 4 cm

Top side = 13 cm

8. Total surface area of the triangular prism:

First, we can find the area of each shape, as we had previously to find the total area of the net and the surface area of the triangular prism.

Area of the red rectangle:

Formula:

LH = A (Length x Height = Area)

A = 5 x 4

A = 20 cm²

Area of the blue rectangle:

Formula:

LH = A (Length x Height = Area)

A = 12 x 4

A = 48 cm²

Area of the green rectangle:

Formula:

LH = A (Length x Height = Area)

A = 13 x 4

A = 52 cm²

Area of the yellow triangles:

Formula:

2 (1/2 Bh) (2 (half of base x height))

A = 2(1/2 5 x 12)

A = 2(1/2 60)

A = 2(30)

A = 60 cm²

Total surface area of the triangular prism:

LH + LH + LH + 2 (1/2 Bh) = Surface Area of the triangular prism (Area of the red rectangle + Area of the blue rectangle + Area of the green rectangle + Area of the yellow triangles = Total surface area of the triangular prism)

A = 20 cm² + 48 cm² + 52 cm² + 60 cm²

A = 180 cm²

The answer should be 180 cm so ur final answer is 180

Can someone answer this

Answers

Answer:

2÷1 =2

2x1 =2

2-1 = 1

Step-by-step explanation:

Hopw this helps

2 divided by 1 = 2
2 X 1 = 2
2 - 1 = 1

solve the inequality
1/5x+3>9

Answers

Answer:

Step-by-step explanation:
First, you would want to subtract the 3 on the left side to the right side to get the 1/5x to be alone.
1/5x>6
Next, we need to solve for x, by multiplying 5 to cancel out the 1/5.
(5)1/5x>6(5)
That leaves us with x>30
treat the inequality sign as an equal sign, that should help

its gonna be x>30 because x+15>45 then u subtract .

Oscar and Ruth walk to school. Oscar walks 1/4 of a kilometre to school. His walk is 2/3 of the distance that Ruth walks to school. What is the total distance, in kilometres, that Ruth walks to school?

Answers

I might be wrong but I think the answer is 167 metres
416.6 and then the six is repeating not sure if you can apply it to things like this

(a) Simplify x² − (x − m)(x + m). (b) Using your answer to (a), write down the value of 1023² - 1022 x 1024 without using a calculator.​

Answers

Answer:

Step-by-step explanation:

Which relationships describe angles 1 and 2?

Select each correct answer.


adjacent angles

complementary angles

supplementary angles

vertical angles

Answers

Answer:

Complementary Angles

Step-by-step explanation:

They are both in right angles

complementary angles they are both on the origin line

What is the volume of this figure?

Enter your answer in the box
ft³

Answers

Answer:

76

Step-by-step explanation:

(5x4x2)+(6x2x3)

Answer:

76 ft^3

Step-by-step explanation:

What is the volume of this figure?

these are two cuboids side by side, Volume = L * W * h, we find the volume of both and then we add.

4 * 2 * 8 = 64 ft ^ 3

2 * 2 * 3 = 12 ft ^ 3

64 + 12 =

76 ft ^ 3 (your answer)

Please help Me! I am confuzzled, I’m just a poor unfortunate kid I cannot be expected to do dis math! Ahhhhh

Answers

Answer:2x³ + 4x² - 48xD) Cubic Trinomial

Explanation:

[tex]\rightarrow \sf 2x(x-4)(x+6)[/tex]

[tex]\rightarrow \sf (2x^2-8x)(x+6)[/tex]

[tex]\rightarrow \sf 2x^3 + 12x^2 - 8x^2 -48x[/tex]

[tex]\rightarrow \sf 2x^3 + 4x^2 -48x[/tex]

As there are three terms, the above polynomial is a cubic trinomial.

I think the answer is 7-12%=98+12

FIRST CORRECT ANSWER GETS BRAINLIEST

Answers

Answer:

1092

Step-by-step explanation:

(12x34) x 2 + (12x3) x2 + (34x3) x2 = 408 x 2 + 36 x 2 + 102 x 2

=816 + 72 + 204

= 1092

(the numbers in brackets are the "net" areas)

The answer is 1092, 816 + 72 + 204
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