Mathematics Middle School

## Answers

**Answer 1**

answer is 113.04 ft³

formula is

volume = pi times radius squared times height

3.14 times 3 squared times 4

3.14 x 9 x 4 =

## Related Questions

You fly a hot air balloon 1.5 miles above the ground. What is the measure of BD⌢, the portion of Earth that you can see? Round your answer to the nearest tenth. (Earth's radius is approximately 4000 miles.)

### Answers

Answer:

If the radius of the earth isRand the distance of the observer from the earth's surface isd, then the percent of the sphere's surfaceAthat is visible to the observer is given by:

Given that the hot balloon is 1.5 miles above the ground and that the radius of the earth is approximately 4000 miles, then the percent of the earth's surface that you can see is given by:Therefore, the measure of arc BD, the portion of Earth that you can see is 0.0187% of 360 degrees = 0.1 degrees.

Step-by-step explanation:

How would 3 1/4 be written as a percent?

A: 0.0325%

B: 3.25%

C: 32.5%

D: 325%

### Answers

D.325%

3 1/4= 13/4

13 divides to 4 is 3.25

3.25 x 100 = 325%

* percent is out of 100

**Fractions are parts of a number. Decimals are fractions whose denominators are powers of 10. Percents are numbers out of 100. Therefore, you convert a fraction to a decimal, follow these steps:**

Convert the mixed fraction into a whole fraction:

[tex]3\frac{1}{4} = \frac{13}{4} = \frac{325}{100}[/tex]

Convert the fraction into a decimal:

[tex]\frac{325}{100}[/tex] = 3.25

Convert the decimal into a percent by multiplying by 100:

3.25 × 100 = **325%**

**Your answer is D**

How many lines of symmetry does this figure have?

### Answers

**Answer:**

i think 2 not really sure

**Answer:**

4 lines

**Step-by-step explanation:**

you have 1 line vertically, another horizonatlly and two on a line that equal t y=x and y= -x

PLeaseeee helppp!! Math: percentages. will make BRAINLY

### Answers

**Answer: 840**

**Step-by-step explanation: 50% is half. All I did was add 420 two time since 420 is half of what this person has to spend.**

**Answer:**

the answer should be 210 dollars because first of all remember that when we are dealing with this problems of percents we need to divide first the percent which is 50% by 100 and you will get 0.50 so then you multiplied it.

0.50 times 420= 210

210 is the correct answer and have a great day.

**Step-by-step explanation: :DDDD**

1. A coin is flipped 100 times. The results are 42 heads and 58 tails. What is the relative frequency of getting heads?

A. 56%

B. 50%

C. 58%

D. 42%

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This table shows the results of rolling a standard number cube.

What is the approximate experimental probability of rolling a number less than 3?

Answer choices:

19%

17%

26%

33%

### Answers

**1) Correct option is C)**

**A fair coin is tossed 100 times and the head occurs 58 times and tail 42 times.**

**The experimental probability of getting a head is :**

**P(E)= **

**Total outcomes divided by Number of head**

**58/100 = 29/50 (29/50x100) = 58% (C)**

**2) 19%**

****

**Answer:**

1. 42%

2. 33%

**Step-by-step explanation:**

1. Relative frequency = Number of successful trials ÷ Total number of trials

plug the numbers in and we get 42/100. 42/100 = 0.42 = 42%

2. Experimental probability = Number of in which the outcome occurs ÷ Total number of trials

plug the numbers in and we get 2/6 = 1/3 = 33%

Can someone pls help me? I haven't been working on this since I was on vacation :/

### Answers

**Answer:**

m=36 degrees

**Step-by-step explanation: if the lines p and q are parralel and inside angles are equal y will be equal to u**

Angle u = 36 dégrées

Step-by step:

Alternate interior angles are =

please help me thinks

### Answers

**Answer:**

8

**Step-by-step explanation:**

A health food store has launched a new pack of vitamins for children. The store records the number of packs ordered by a random sample of 100 online customers and the number of packs ordered by a random sample of 100 walk-in customers.

Which of the following inferences can be drawn about the buying pattern of the online customers versus that of the walk-in customers?

A. Online customers buy an average of four packs compared with walk-in customers, who buy an average of one pack.

B. Online customers buy an average of five packs compared with walk-in customers, who buy an average of two packs.

C. Online customers buy an average of four packs compared with walk-in customers, who buy an average of two packs.

D. Online customers buy an average of five packs compared with walk-in customers, who buy an average of one pack.

### Answers

**Answer:**

The Answer is C. Online customers buy an average of four packs compared with walk-in customers, who buy an average of two packs. **Step-by-step explanation:**

The mean for online customers is 4.3

The mean for walk in customers is 1.8

Round the 4.3 to 4 and Round the 1.8 to 2

Which of the following conditions produces a unique triangle?

### Answers

**Answer: I would say A because it makes the most sense **

**Step-by-step explanation:**

i need some help with this!! i want my grade to go up

### Answers

The answer is 8

the square root of 61 is close to the square root of 64, which is 8

24 + 8 = 32

32/4 = 8

BRAINLIEST? thank you!! :DD

the correct answer is 8.

24+8=32

32/4=8

the square root of 64 is 8

The cylinder and the cone have the same volume and the same height. If the radius of the base of the cone is 3 cm, then the radius of the base of the cylinder is _____ cm.

### Answers

**Step-by-step explanation:**

I hope you understood if yes mark me brainliest

what is the radius of a cylinder with a diameter of 4 inches and a height of 7 in

### Answers

**Answer:**

2

**Step-by-step explanation:**

**Answer:**

the answer is 2 because first of all if the diameter is 4 the radius is 2 because the radius is half of the diameter so the answer is 2.

**Step-by-step explanation: give brainliest to the first people that answer it first.**

please help! I will give brainliest

If the blueprint is drawn on the coordinate plane with vertices (1, 5) and (11, 15) for the corners labeled with red stars, would that be an accurate representation of the length of the diagonal of the square C? Show your work and explain your reasoning.

### Answers

Answer:

Yes that will be an accurate representation

Step-by-step explanation:

Since there is a right triangle so we know for a fact that these all all squares. All squares can be cut in half and the vertices will meet up

help on this please will give brainiest

### Answers

Function = Linear

Domain = (3,infinite)

Range = (1,infinite)

**Answer:**

Function = Linear

Domain = (3,infinite)

Range = (1,infinite)

Susan is buying 5 and a half pies from the market. Write this amount as a mixed number, improper fraction, decimal and percent.

### Answers

**Mixed Number:**

[tex]5\frac{1}{2}[/tex]** or 5 1/2**

**Improper fraction:**

2x5+1=11

[tex]\frac{11}{2}[/tex]** or 11/2**

**Decimal:**

5.5

**5.5** because 5 is whole number, and then, 5 *tenths* because 5 is half of 10.

**Percent:**

1 whole = 100%

100% x 5 = 500%

500% + 50% (1/2) = 550%

**550%**

5 1/2

11/2

5.5

550%

I hope this helped :)

A test has 40 questions. The test awards 2 points if the answer is correct and takes away 1 point if the answer is incorrect. A student answered 5 questions incorrectly. And got 35 questions correct. What was his score?

### Answers

**Answer:**

His score is 65

**Step-by-step explanation:**

All you have to do is 35 x 2 and then subtract it by 5!

His grade was a 65 because 35x2=70(-5) is equal to 65

A lawn sprinkler sparys water 6 feet in all directions as it rotates

Find the area of the lawn that the sprinkler covers. use 3.14 for π

A 113.04²

B 37.68²

C 678.24²

D 18.84²

### Answers

**Answer:**

(A) 113.04^2

**Step-by-step explanation:**

Area of a circle is found with: πr^2

in this we will replace π with 3.14

the radius is 6feet

first step: 6^2 = 36

second step: 3.14*36= 113.04^2

its B hope this helps :)))))

9. Find the number of possible color arrangements for the 12 given disks, arranged in a row.

5 black, 3 red, 2 white, 2 green

### Answers

**Answer:**

479001600

**Step-by-step explanation:**

There are 12 possible outcomes. So you do 12 factorial. Which is 12 x 11 x 10... and so on going down till one.

500 people are asked to name their favorite color. The results of this survey are shown in the pie chart below:

Each sector of the pie chart makes an angle at the center. For example, the yellow sector makes an 18 degree angle, since 18 degrees is 5% of 360 degrees.

If we consider only the people who named a rainbow color (red, orange, yellow, green, blue, or purple), what percentage of those people preferred red?

### Answers

**Answer:**

**20%**

**Step-by-step explanation:**

**Method 1**

**Percentage of people who preferred red:**

**= 13%**

**Percentage of people who named a rainbow color:**

**= 13 % + 4% + 5% + 15% + 16% + 12%**

**= 65%**

**Percentage of people who preferred red from those who named a rainbow color:**

**= (13% ÷ 65%) × 100**

**= 20%**

**Method 2**

**Number of people who preferred red:**

**= 13% of 500**

**= 13% × 500**

**= 0.13 × 500**

**= 65**

**Percentage of people who named a rainbow color:**

**= 13 % + 4% + 5% + 15% + 16% + 12%**

**= 65%**

**Number of people who named a rainbow color:**

**= 65% of 500**

**= 65% × 500**

**= 0.65 × 500**

**= 325**

**Percentage of people who preferred red from those who named a rainbow color:**

**= (number who preferred red ÷ number named rainbow color) × 100**

**= (65 ÷ 325) × 100**

**= 20%**

**Pls Brainliest!**

**Answer:**

20%

**Step-by-step explanation:**

The rainbow colors add up to13 + 4 + 5 + 15 + 16 + 12 = 65percent of the pie chart. So,65% ∙ 500 = 325people in the survey named a rainbow color. Of these,13% ∙ 500 = 65named red.

Therefore, if we consider only the325people who named a rainbow color, the percentage of those people who preferred red is

65/325 = 1/5 = 20%

(You may notice that the answer would still be20%even if the total number of people in the survey were some number other than500.This is because13%is20%of65%,no matter what these are percentagesof!)

please help me with this square!

### Answers

**Answer:**

EF

**Step-by-step explanation:**

its EF because its on the same corresponding side as LM

BRAINIEST PLS MY LADY

**Answer:EF**

**Step-by-step explanation:**

corresponds means having a close similarity; match or agree almost exactly. and by looking at the graph EF corresponds with LM meaning that EF is the answer.

Hope this helps, have a good day/night!

Heres another brainly question giving 20pts!!

### Answers

**Answer:**

We are given an area and three different widths and we need to determine the corresponding length and perimeter.

The first width that is provided is 4 yards and to get an area of 100 we need to multiply it by 25 yards. This would mean that our **length is 25 yards** and our perimeter would be 2(l + w) which is 2(25 + 4) = **58 yards**.

The second width that is given is 5 yards and in order to get an area of 100 yards we need to multiply by 20 yards. This would mean that our **length is 20 yards** and our perimeter would be 2(l + w) which is 2(20 + 5) = **50 yards**.

The final width that is given is 10 yards and in order to get an area of 100 yards we need to multiply by 10. This would mean that our **length is 10 yards** and our perimeter would be 2(l + w) which is 2(10 + 10) = **40 yards**.

Therefore the field that would require the least amount of fencing (the smallest perimeter) is **option C, field #3**.

**Hope this helps!**

ASAP HELP PLEASE ITS HOMEWORK

### Answers

**Answer:**

[tex]=132[/tex]

**Step-by-step explanation:**

[tex]A=2AB+(a+b+c)h[/tex]

[tex]AB=\sqrt{s(s-1)(s-b)(s-c)}[/tex]

[tex]s=\frac{a+b+c}{s}[/tex]

Now we have to solve for A:

[tex]A=ah+bh+ch+\frac{1}{2}\sqrt{-a^{4}+2(ab)^2+2(ac)-B^4(bc)^2-c^4[/tex]

[tex]4*10+3*10+5*10+\frac{1}{2}*\sqrt{-4^4+2*(4*3)^2*(4*5)^2-3^4+2*(3*5)^2-5^4}[/tex][tex]=132[/tex]

A plumber can install the pipes in a bathroom in 4 hours. A different plumber needs 5 hours to do the same job. If both plumbers work together, how many hours will it take to install the pipes?

A. 1

B. 2 2/9

C. 3 1/2

D. 4 1/2

### Answers

**Answer:**

it would be 3 1/2

**Step-by-step explanation:**

**Answer:**

D

**Step-by-step explanation:**

If you add 4+5=9 and then divide 9÷2, ( 2 is the number of digits you used) then the answer would be 4 1/2

somebody had a seizure while making this question, please help

### Answers

Check the picture below.

[tex]\textit{area of a regular polygon}\\\\ A=\cfrac{1}{2}asn ~~ \begin{cases} a=apothem\\ n=\stackrel{side's}{number}\\ s=\stackrel{side's}{length}\\[-0.5em] \hrulefill\\ a=7\\ s=8.1\\ n=6 \end{cases}\implies \stackrel{\textit{area of the hexagonal base}}{A=\cfrac{1}{2}(7)(8.1)(6)} \\\\[-0.35em] ~\dotfill[/tex]

[tex]\textit{volume of a prism}\\\\ V=Bh ~~ \begin{cases} B=\stackrel{base's}{area}\\ h=height\\[-0.5em] \hrulefill\\ B=\frac{1}{2}(7)(8.1)(6)\\ V=3572.1 \end{cases}\implies 3572.1=\cfrac{1}{2}(7)(8.1)(6)h \\\\\\ 3572.1=170.1h\implies \cfrac{3572.1}{170.1}=h\implies \boxed{21=h}[/tex]

well, the length of the tunnel is "h", now two 8 meters cars, that's 8+8=16 meters plus a 3 meter connector between them, that's 16 + 3 = 19 meters, can those two cars connected like so fit inside the tunnel? sure thing, "h" can fit 19 meters just fine.

H e l p m e e e e ee e e e

:( T a u r u s

### Answers

**Answer:**

40 cm^3 is the answer

**Step-by-step explanation:**

5x2x4

40cm because you just times all the numbers

5x2x4 = 40

Someone told me to get it done so im asking brainly

### Answers

The didn’t distribute the -6 properly to the fraction the second part of solving should have been -6(4x)+((-6)-2/13)

No because a negative times a negative = a positive and they left the 12/13 negative when it should’ve been changed to positive

Solve for B in the picture below

### Answers

**Answer:**

b= -48

**Step-by-step explanation:**

by transposing,

43=59+b/3

b/3+59=43

b/3=43-59

b/3= -16

b= -16×3

b= -48

therefore the answer is b= -48

hope it helps!!!

PLEASE MARK BRAINLIEST..

Doing all the steps gets B to equal -48.

A health food store has launched a new pack of vitamins for children. The store records the number of packs ordered by a random sample of 100 online customers and the number of packs ordered by a random sample of 100 walk-in customers.

Two dot plots are shown one below the other. The title for the top dot plot is Online Customers and the title for the bottom plot is Walk-In Customers. Below the line for each dot plot is written Number of Packs. There are markings from 1 to 5 on each line at intervals of one. For the top line there are 0, 0, 1, 4, 5 dots respectively for marks from 1 to 5. For the bottom line there are 6, 2, 1, 0, 0 dots respectively for marks from 1 to 5

Which of the following inferences can be drawn about the buying pattern of the online customers versus that of the walk-in customers?

A. Online customers buy an average of four packs compared with walk-in customers, who buy an average of one pack.

B. Online customers buy an average of five packs compared with walk-in customers, who buy an average of two packs.

C. Online customers buy an average of four packs compared with walk-in customers, who buy an average of two packs.

D. Online customers buy an average of five packs compared with walk-in customers who, buy an average of one pack.

### Answers

**Answer: **The inference to make using the median is: online customers by an average of five packs compared with walking customers who buy an average of two packs online.

**Step-by-step explanation: **

The median is the middle value, which has equal data points on the right and to the left.

The median for online customers is between 5 and 6.

The median for walk-in customers is 2.

Therefore, the inference to make using the median is: online customers by an average of five packs compared with walking customers who buy an average of two packs online.

What is the best way to describe the center of the data represented in this line plot?

Select from the drop-down menus to correctly complete the statement.

### Answers

**Answer:**

The number of inches is 1

**Step-by-step explanation:**

The median

A retail store mailed out 350 shipments. 14% of the shipments arrived late.

How many shipments arrived late?

Enter your answer in the box.

shipments

### Answers

**Answer:**

49

**Step-by-step explanation:**

0.14x350 = 49

The answer is 49……………..