Mathematics College

TIMED PLS HELP ME IM BEGGING

Answers

Answer 1

Answer:

4 cm

Step-by-step explanation:

Cylinder Volume formula:

V = πr²h

Given:

V = 240π

h = 15

Finding r:

V = πr²h

240π = πr²(15)

r² = 240π/15π

r² = 16

[tex]\sqrt{r^2} =\sqrt{16}[/tex]

r = 4

Answer 2

Answer:

4 cm

Step-by-step explanation:

TTr^2h = 240TTcm^3(the TT cancel out)r^2 x 15 = 240cm^3(divide both sides by 15)r^2 = 16(square root both sides)r = 4cm

Related Questions

A certain high school reported that only 74% of its students enroll in a math class during senior year. If
there are 407 seniors enrolled in math at this school, how many seniors are in the school?

Answers

Answer:

550 students are in the school.

Step-by-step explanation:

The way I found my answer was by first turning 74% into a decimal, which is 0.74. Then I divided 407 by 0.74 and I got 550. Therefore, 550 is our answer.

Determine the surface area of the rectangular prism.

Answers

Answer:

The answer is 220 cm^2

Step-by-step explanation:

Formula of a rectangular prism: 2 (lw + lh + wh)

2 (lw + lh + wh)

2 (10 x 4 + 10 x 5 + 4 x 5)

2 (40 + 50 + 20)

2 (110)

= 220 cm^2

Two Social Security numbers (see Exercise 8.12) match zeros if a digit of one number is zero iff the corresponding digit of the other is also zero. In other words, the zeros in the two numbers appear in exactly the same position. For example, the Social Security numbers 120-90-1109 and 430-20-5402 have matching zeros.
Prove: Given a collection of 513 Social Security numbers, there must be two that match zeros.

Answers

Answer:

Proved

Step-by-step explanation:

From the given parameters, we have:

[tex]n = 9[/tex] i.e. the length of each security numbers

[tex]r = 2[/tex] i.e. 2 security numbers

Required

In 513 security numbers, 2 must have matching zeros

To do this, we make use of Pigeonhole principle.

First, we calculate the number of all security numbers not having matching zeros.

Each of the 9 digits can be selected in 2 ways.

2 ways implies that each digit is either 0 or not

So, total selection is:

[tex]Total = 2^9[/tex]

[tex]Total = 512[/tex]

Apply Pigeonhole principle

The principle states that: suppose there are n items in m containers, where [tex]n>m[/tex], then there is at least one container that contains more than 1 item.

This means that if there are 512 security number without matching zeros, then there is 1 (i.e. 512 + 1) with matching zeros.

[tex]512 + 1 = 513[/tex]

You have 32 cups of milk. You need 1.25 cups to make one serving of deep-fried chicken. How many servings can you make? Whole servings only - round down rather than using partial servings.

Answers

Answer:

25 cups and 3/5 of a cup

Step-by-step explanation:

Bro trust me

Answer:

Step-by-step explanation:

32÷1.25=25.6

I hope this helps ^-^

Complete the sentence.
9 is 36% of

Answers

Answer:

Step-by-step explanation:

[tex]\frac{9}{y} =\frac{36}{100}[/tex]

y × 36 = 9 × 100

36y = 900

36y ÷ 36 = 900 ÷ 36

y = 35

Answer:

Step-by-step explanation:

36% 9

-------------- (36% over 100% and 9 over x)

100% x

Cross multiply: 36% times x and 100% times 9

36% times x=36x

100% times 9=900

Divide: 900 divided by 36=25

25 is your answer

Hope this helped!

Bella was here :)

Answer:

A) 12.24

Step-by-step explanation:

Mean absolute deviation: 65, 90, 85, 70, 70, 95, 55 = 12.244897959184

Answer:

75.7

Step-by-step explanation:

A summer job pays $5 per hour.
a. you work 12 hours. How much do you make?
b. after working 24 hours do you have enough money to buy an mp3 player that costs $100?

Answers

Answer:

A. 60, B. 120.

You just need to add to get your answer

whats 21(2 - m) + 12m = 44. please

Answers

Answer:

= − 2 /9

Step-by-step explanation:

Special right triangles. find the value of x?
hypotenuse = leg ×
[tex] \sqrt{2} [/tex]

Answers

Answer:

x = (9√2)/2

Step-by-step explanation:

Reference angle = 45°

Hypotenuse length = 9

Adjacent length = x

Apply the trigonometric ratio CAH:

Cos 45° = Adj/Hyp

Cos 45° = x/9

Multiply both sides by 9

9*Cos 45 = x

9*1/√2 = x (cos 45 = 1/√2)

9/√2 = x

Rationalize

(9*√2)/2 = x

x = (9√2)/2

Which of these expressions is equal to 3(30 - p)?

Answers

Answer:

[tex](3 \times 30) - (3 \times p)[/tex]

Answer B is correct

Step-by-step explanation:

[tex]3(30 - p) \\ (3 \times 30) - (3 \times p)[/tex]

hope this helps you

can I have the brainliest please?

Answer:

Step-by-step explanation:

B is correct. According to the distributive property of multiplication, we have 3(30 - p) = 3·30 - 3·p

Find AB. Round the answer to the nearest tenth if needed.

Answers

9514 1404 393

Answer:

Step-by-step explanation:

The product of segment lengths to the near and far circle intersection points is the same for both "secants". AD is a tangent, so the two intersection points are the same point. This gives ...

AD² = AB·AC

144 = AB(AB +10)

We can add 25 to complete the square.

169 = (AB +5)² . . . write as a square

13 = AB +5 . . . . . . positive square root

8 = AB . . . . . . . . . .subtract 5

A computer engineer is investigating whether the amount of installed RAM (random access memory) can be used to predict the mean cost of a laptop with the operating system. The computer engineer collected a sample of 20 laptops with the same operating system. The engineer wants to estimate the mean change in the cost, in dollars, for each increase of 1 gigabyte of installed RAM. Assuming the conditions for inference have been met, which of the following inference procedures is the most appropriate for such an investigation?

a. A two-sample z-interval for a difference between proportions.
b. A two-sample t-interval for a difference between means.
c. A matched-pairs t-interval for a mean difference.
d. A one-sample t-test for means.
e. A linear regression t-interval for slope

Answers

I agree with (a). As the best sentence

Answer:

The answer is 18.

Step-by-step explanation:

You take 7x12 which is 84 and then you take 84 and subtract it from 102 inches so 102-84=18.

Hope this helps!

Noah after using 7 feet of the border is now left with 95 feet of the boarder.

What are some alternative names for arithmetic operations?

Addition is also known as the sum, subtraction is also known as the difference, multiplication is also known as the product, and division is also known as the factor.

We also know about some basic properties of arithmetics,

There are three types of basic arithmetic laws of operation.

Commutative law for addition and multiplication states,

a + b = b + a.

a×b = b×a.

Distributive law states,

a(b ± c) = ab ± ac.

Associative law states,

a + (b + c) = (a + b) + c.

Given, Noah has 102 inches of the border for poster board and he uses 7 feet of the border.

Therefore, The amount of border left can be obtained by subtracting the length used from the total length which is,

= (102 - 7) feet.

= 95 feet.

learn more about arithmetic operations here :

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Margot has paid $13,800 in
rent for a year. How much is
her monthly rent, r?
Hint: Remember there are 12
months in a year.

Answers

Answer:

$1150 per month

Step-by-step explanation:

13800/ 12

When eleven is reduced by one-third of a number, the result is 5
. Find the number.

Answers

Answer:

Step-by-step explanation:

11 - 1/3x = 5

Subtract 11 from both sides

-1/3x = -6

Multiply both sides by -3

x = 18

Which expression is equivalent to 8x - 12y + 32

Answers

4(2x-3y+8)

Hope its the correct answer

Answer:

-16(0.5x-0.75y+2)

Step-by-step explanation:

I got it right on edge 2022 Hope it helps <3

At the book fair, Vald spends all of his money on new books. Pamela spends
2/3 as much as Vald. Eli spends 4/3 as much as Vald. Who spent the most?
The least?

Answers

Step-by-step explanation:

Lets take Vald spends $100 on the book fair which are all the money he had.

Pamela Spends 2/3 as much as Vald

Pamela Spends 2/3 x 100 = $66.67

Eli Spends 4/3 as much as Vald

Eli spends 4/3 x 100 = $133.33

From here, we can see Eli Spends the most and Pamela Spends the least.

Hayden has 90 trading cards

Answers

Answer:

Step-by-step explanation:

90/10 =9

Which equation shows x^2+6x-2 = 0 rewritten by completing the square?

A. (x+3)^2=18
B. (x+3)^2-11
C. (x+3)^2-2
D. (X+3)^2-9

Answers

Answer:

Option B.

Step-by-step explanation:

We have the equation:

x^2 + 6*x - 2 = 0

Remember that:

(a*x + b)^2 = (a*x)^2 + 2*a*b*x + b^2

Because the term with x^2 has a coefficient equal to 1, then a = 1.

(x + b)^2 = x^2 + 2*b*x + b^2

The ter with x is: 6*x

then:

2*b*x = 6*X

2*b = 6

b = 6/2 = 3

we have:

(x + 3)^2 = x^2 + 6*x + 9

Now, our equation is:

x^2 + 6*x - 2 = 0

Now we can add the term (11 - 11) = 0

x^2 + 6*x - 2 + (11 - 11) = 0

x^2 + 6*x - 2 + 11 - 11 = 0

x^2 + 6*x + (11 - 2) - 11 = 0

x^2 + 6*x + 9 - 11 = 0

And we know that:

x^2 + 6*x + 9 = (x + 3)^2

Then we can rewrite our equation as:

(x + 3)^2 - 11 = 0

Then the correct option is B.

The equation that matches our result is option B. (x+3)² - 11. Therefore, rewriting x² + 6x - 2 = 0 by completing the square gives us (x+3)² - 11 = 0.

To rewrite the equation x² + 6x - 2 = 0 by completing the square, we need to follow these steps:

Move the constant term (-2) to the other side of the equation:

x² + 6x = 2

Take half of the coefficient of x (which is 6) and square it. Add the result to both sides of the equation:

x² + 6x + (6/2)² = 2 + (6/2)²

x² + 6x + 9 = 2 + 9

x² + 6x + 9 = 11

Now, let's look at the answer choices:

A. (x+3)² = 18

B. (x+3)² - 11

C. (x+3)² - 2

D. (x+3)² - 9

Among the answer choices, the equation that matches our result is option B. (x+3)² - 11. Therefore, rewriting x² + 6x - 2 = 0 by completing the square gives us (x+3)² - 11 = 0.

To know more about equation:

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Help please!

This is due on April 18th but I would prefer the answer today! No sus links please!

Answers

3(y-2)=18

3y-6=18

3y=24

y=8

HOPE THIS HELPS AND YOU GOT GOOD GRADES

Answer:

blank 1= 6

blank 2=6

Step-by-step explanation:

y=2

3y=6

6/3=2

hope that helps

have a great day/night

The eight subjects used for this comparison were not a random sample. In fact, they were friends of the researchers whose ages and weights were similar to the types of people who would be measured with this DXA. Comment on the appropriateness of this procedure for selecting a sample, and discuss any consequences regarding the interpretation of the significance testing and confidence interval results.

Answers

Answer:

The sample may be a representative of the future of the future subjects, but the test results and confidence interval are suspect because it is not a random sample

Step-by-step explanation:

When the subjects used for a research are not a random sample but friends whom share similar qualities/quantities related to the purpose of the experiment. The sample may be a representative of the future subjects, but the test results and confidence interval will not be reliable enough to be accepted as standard simply because it was not a random sample

Hence the comment :The sample may be a representative of the future of the future subjects, but the test results and confidence interval are suspect because it is not a random sample

find the gcf of 2³×3² and 2³×3⁴ please no links

Answers

Answer:

Step-by-step explanation:

GCF - List out the prime factors that are common to both numbers

2³ * 3²

2³ * 3⁴

GCF = 2³ * 3² = 8 *9 = 72

Other Questions

Suppose a 16-sided die was rolled. Fill in the information [6 mks]a. The probability of rolling a number greater than but not equal to 10 is _______ as a fraction, as a ratio _______ and as a percentage ____________b. The odds in favour of rolling an even number less than or equal to 7 are ____ : ____ whereas the odds against rolling an even number less than or equal to 7 are ____ : ____c. What are the odds in favour of rolling a number less than 5? ____ : ____ Read the following sentence:I found this tie, and it looks fancy.Which synonym for the underlined word would most clearly make thissentence a criticism of the tie?A. LavishB. ElaborateC. GaudyD. Opulent Translate He isn't as smart as they are into Spanish by filling in the missing letters: _ n_ __ tan _nteli_e_te co_o _llos Classify each statement as a property of ethers, alcohols, or both ethers and alcohols?1. These compounds form hydrogen bonds between themselves and with other compounds containing an O-H, N-H, or F-H bond, such as water.2. These compounds are water soluble if they have fewer than four carbon atoms.3. When comparing ethers and alcohols of similar molecular weights, these compounds have the lower boiling point. 3) Consider the function f defined byf(x) = (3 - x)(4 + 3x). At what point doesthe curve y=f(x) intersect the y-axis? One of the themes that emerges over the course of this novel is that war is brutal and awful. How does the depiction of Henry's mother in this excerpt begin to establish or develop that theme? The graph below shows how the monthly rent for an apartment changed over time When do we use the coordinating conjunction NOR? Question 1(Multiple Choice Worth 2 points) (09.03 LC) Fairy tales typically use ________ as characters. gods and goddesses historical figures ordinary people royalty and magical creatures The magnitude of the gravitational acceleration at the surface of a planet of mass M and radius R is g. What is the magnitude of the gravitational acceleration at the surface of a planet of mass 2M and radius 2R? The pros and cons of new product concepts are analyzed during the idea generation phase of new product development.TrueFalse Which is a notable fact about the Clinton presidency? Uplift and weathering are two of the processes that shape the features of the Earth. How are they different and how are they similar? Which of the following is considered a risk of driving?A. Spending too much on gasB. Getting lostC. Causing damage What are the rules for using parentheses The main reason for the weeklong festival Paryushan is ___________ What television shows, movies, or advertisements relate to the topic of health insurance? Which excerpt from John Milton's poetry is in blank verse? Christian monasticism gained importance after christianity was legalized for what reason? WILL GIVE BRAINLIESTSelect the correct answer from each drop down menu:Federal cases always begin in [district, supreme, and special] courts. The verdicts of these courts has been appealed to federal appellate courts. Currently they are [13, 112, and 60] appellate courts in the United States.