Alaina evaluated 17/18+1/20 and got an answer of 18/38. Which statement is true about her answer?


1. Her answer is not correct because when you add fractions, the sum is always greater than 1.



2. Her answer is correct because all the fractions are less than 1.



3. Her answer is not correct because the sum cannot be less than either addend.



4. Her answer is correct because 17+1=18 and 18+20=38.

Answers

Answer 1

Answer:

I think it's 3. cuz 17 cannot be divided by 18


Related Questions

Solve -8x^18/4x^6 for steps of the product of two exponentials

Answers

Given:

The expression is:

[tex]\dfrac{-8x^{18}}{4x^6}[/tex]

To find:

The simplified form of the given expression.

Solution:

We have,

[tex]\dfrac{-8x^{18}}{4x^6}[/tex]

It can be written as

[tex]\dfrac{-8x^{18}}{4x^6}=\dfrac{-8x^{6+12}}{4x^6}[/tex]

[tex]\dfrac{-8x^{18}}{4x^6}=\dfrac{-(2)(4)x^6x^{12}}{4x^6}[/tex]          [tex][a^{m+n}=a^ma^n][/tex]

Cancel out the common factors.

[tex]\dfrac{-8x^{18}}{4x^6}=\dfrac{-2x^{12}}{1}[/tex]

[tex]\dfrac{-8x^{18}}{4x^6}=-2x^{12}[/tex]

Therefore, the simplified form of the given expression is [tex]-2x^{12}[/tex].

A builder places a 2.9m ladder on horizontal ground, resting against a vertical wall. to be safe to use, the base of this ladder must be 1.3m away from the wall. how far up the wall does the ladder reach? GIve ur answer to 1 decimal place

Answers

The answer is in the photo

The length up the wall does the ladder reach is 2.59 meter

What is Pythagorean theorem?

In mathematics, the Pythagorean theorem, or Pythagoras' theorem, is a fundamental relation in Euclidean geometry among the three sides of a right triangle.

What is Right triangle?

A right triangle or right-angled triangle, or more formally an orthogonal triangle, is a triangle in which one angle is a right angle or two sides are perpendicular.

Given,

Length of the ladder = 2.9 meter

Distance from base to wall = 1.3 meter

Draw the figure using the given data

Apply Pythagorean theorem

[tex]AB^{2}+BC^{2}= AC^{2}\\ AB^{2}=AC^{2}-AC^{2} \\ AB^{2}=2.9^{2}-1.3^{2}\\ AB^{2}=6.72\\ AB=\sqrt{6.72}[/tex]

AB=2.59 meter

Hence, the length up the wall does the ladder reach is 2.59 meter

Learn more about Pythagorean theorem and Right triangle here

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A manager wants to gauge employee satisfaction at a company. She hands out a survey questionnaire to everyone in the human resources
department who were hired in the past two years. The employees must respond to the questionnaire within five days.
What type of bias are the survey results at risk for?
OA. The survey results are not at risk for any bias.
OB.
The survey results are most at risk for undercoverage.
Ос. The survey results are at risk for nonresponse bias and undercoverage.
OD
The survey results are most at risk for nonresponse bias.

Answers

B. Undercoverage? Because the survey was only given to a certain group of people

If a = 4 and b = 7 what is A - B

Answers

Answer:

-3

Explanation:
4-7

Answer:

-3

Step-by-step explanation:

A-B

4-7

= -3

hence the answers of this question is -3

Hey! Do you mind helping me? ​

Answers

60 / 2 = 30 so that’s greater than ; 7 x 4 = 28 so that’s equal

Answer:

20 - x^2 + y = 28

y+9x > 28

60 / y > 28

Step-by-step explanation:

This is function notation and I have no idea how to do it. I need answers.

Answers

Answer:

So you are given the function, f(x) = 3x - 4. You will plug in the value given and solve and write the answer down in the box.

f(x) = 3x - 4 ---> f(5), f(2), f(1), f(10), and f(-1) value given

f(5) = 3(5) - 4

f(5) = 15 - 4

f(5) = 11

f(2) = 3(2) - 4

f(2) = 6 - 4

f(2) = 2

f(1) = 3(1) - 4

f(1) = 3 - 4

f(1) = -1

f(10) = 3(10) - 4

f(10) = 30 - 4

f(10) = 26

f(-1) = 3(-1) - 4

f(-1) = -3 - 4

f(-1) = -7

*Answers are bolded.*

Hope this helps, thank you :) !!

If you multiply a number by 3 and then add 40, the result is the same as if you add 17 to the number and then multiply by 2. What is the result if you subtract 9 from the number and then multiply by 4? .

Answers

Answer:

The number is -6

The second operation is -60

Step-by-step explanation:

Let the number be x.

Solving (a): The value of x

Operations 1:

Multiply by 3: 3x

Add 40: 3x + 40

Operations 2:

Add 17: x + 17

Multiply by 2: (x + 17) * 2

To find x, equate both operations.

[tex]3x + 40 = (x + 17) *2[/tex]

[tex]3x + 40 = 2x + 34[/tex]

Collect like terms

[tex]3x - 2x = 34 - 40[/tex]

[tex]x = -6[/tex]

Solving (b):

Operations:

Subtract 9: [tex]x - 9[/tex]

Multiply by 4: [tex](x - 9) * 4[/tex]

This gives:

[tex](x - 9) * 4 = (-6 - 9) * 4[/tex]

[tex](x - 9) * 4 = -15 * 4[/tex]

[tex](x - 9) * 4 = -60[/tex]

someone tell me the slope

Answers

Answer:

-8/3

Step-by-step explanation:

since it's going downwards it's negative and it does 4y by x square so it would be -8/3

, hope it helps

Please help me! "Which equation models this situation?" 24 more than a number is 31."

Answers

Answer:

x+24 = 31

Step-by-step explanation:

More than means addition

Let x be the number

x+24

is means equals

x+24 = 31


Use the half-angle formulas to find the exact value of the trigonometric function sin 15°

Answers

Answer:

sin 15° = 0.2588

Step-by-step explanation:

The half angle formula is:

[tex]\sin{(\frac{x}{2})} = \pm \sqrt{\frac{1 - \cos{x}}{2}}[/tex]

sin 15°

The double of 15º is 30º. First quadrant, so the sine is positive.

[tex]\sin{15} = sqrt{\frac{1 - \cos{30}}{2}}[/tex]

Since [tex]\cos{30} = 0.866[/tex]

[tex]\sin{15} = sqrt{\frac{1 - \cos{30}}{2}} = \sqrt{\frac{1 - 0.866}{2}} = 0.2588[/tex]

sin 15° = 0.2588

To determine if the class understood the homework assignment, the math teacher checks the top 3 papers in the pile of collected homework. The teacher finds that all students understood the homework assignment

Answers

Answer:

ask them question and give them homework so that the teacher will find out that they understood

This is a biased convenience sample, the conclusion is not valid

If U is a universal set and A is a subset of universal set U, then (A c) c= U.
Select one:
True
False​

Answers

HEY MATE THIS IS U R ANSWER

TRUE

HOPE IT HELPS YOU

Nathaniel is going to invest $22,000 and leave it in an account for 20 years.
Assuming the interest is compounded continuously, what interest rate, to the nearest
tenth of a percent, would be required in order for Nathaniel to end up with $33,000?

Answers

Answer:2.0%

Step-by-step explanation:

The interest rate required to get a total amount of $33,000.00 from compound interest on a principal of $22,000.00 compounded 1 times per year over 20 years is 2.048% per year.

What is the interest rate?

r = n[(A/P)1/nt - 1]

r = 1 × [(33,000.00/22,000.00)1/(1)(20) - 1]

r = 0.0204802

Then convert r to R as a percentage

R = r * 100

R = 0.0204802 * 100

R = 2.048%/year

The interest rate required to get a total amount of $33,000.00 from compound interest on a principal of $22,000.00 compounded 1 times per year over 20 years is 2.048% per year.

The amount a lender charges a borrower is called an interest rate, and it is expressed as a percentage of the principal, or the loaned amount. Typically, a loan's interest rate is expressed as an annual percentage rate, or APR (APR).

To learn more about compound interest refer to:

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What is 0.574 rounded to the nearest hundredth?

Answers

Answer:

B .57

Step-by-step explanation:

hundredths place is the second decimal place. And because the thousandths place is less than 5, you round down.

A bakery sells 4 lemon poppy muffins for every 5 bran muffins sold. Which table represents the relationship between lemon poppy and bran muffins?

Answers

The answer would be D

Areceli is a chef for a catering company. The guests at a banquet had a choice of entrées: chicken or lasagna.

Areceli prepared three times as many chicken dinners as lasagna dinners, and there were 96 guests. How many chicken dinners were served?

Answers

Answer:

93x6=anser

Step-by-step explanation:

Answer:

72 Chicken Dinners and 24 Lasagna Dinners

Step-by-step explanation:

Since you know that chicken dinners are 3 times as much as lasagna, you know that you must divide 96 by 4. Why? Well we aren't just looking at the chicken dinners itself. IF we were, then we would divide 96 by 3. But in this situation, you have to divide by both the lasagna and the chicken. Adding the parts together, you get 1 and 3, or 4. So, dividing 96 by 4 you get 24. You now know that the amount of lasagna dinners is 24. Chicken dinners are 3 times as much meaning 24 x 3 = 72 chicken dinners.

Algebraic expression ish (x = lasagna dinners):

96 = 3x + x

96 = 4x   (divide both sides by 4 now)

24 = x

What is the value of n when n = 2 ?

Answers

Answer:

2

Step-by-step explanation:

Is there an expression you need to solve?

n = 2 so the value would be 2

If I have 1/4 of a tank of gas what fraction represents the amount required to fill my tank
the rest of the way?

Answers

3/4 is required to fill up to fill ur tank

Answer:

1=1 whole full tank

4/4= 1

1/4 = the tank

4/4-1/4= 3/4

The amount required would be 3/4

Population data from three towns is displayed in the tables below. Which town has grown that follows an exponential model?

Answers

Answer:

Step-by-step explanation:

there is no tables

HELPPPPPPP PLEASEEEE I AM SO DESPERATE

Answers

Answer:

Select A, C, D, and F

Step-by-step explanation:

B is not multiplication

C is correct

D is shorter form, correct

F is correct

Plz mark as brainliest if correct! Have a nice day!!!

The square of the difference of three times a number, w, and four times a number, x

Answers

(3•w - 4•x)^2 is an answer

Answer all & show work! WILL MARK BRAINLIEST!
(Vertex Form to Standard Form)

[tex]y = (x+\frac{1}{2} )^{2} -2[/tex]
[tex]y = 18(x-\frac{1}{2} )^{2} +5[/tex]
[tex]y = -2(x + \frac{1}{2} )^{2}[/tex]
[tex]y = 12(x-2)^{2} + 15[/tex]
[tex]y = 2(x+8)^{2} +10[/tex]

Answers

Answer:

Step-by-step explanation:

1 12

2 19

3 10

4 28

5 2

Xy^3
What is the coefficient?

Answers

xy is the coefficient

There are 6 cabbages and 8 carrots in a bag. How many carrots need to be added to make the ratio of
cabbages to carrots 1:3?

Answers

Answer:

10 carrots

Step-by-step explanation:

So we have 6:8 which is 3:4, meaning that something needs to be changed

Solve for x assuming that we have 6 cabbages

1/3=6/x

x=18

Now we have 6:18, which is 1:3 simplified

There are already 8 carrots so subtract 8

18-8=10

Math help! Answer pls?

Answers

Answer:

22 degrees

Step-by-step explanation:

Just do arccos(0.9272) on your calculator or just do 90 minus 68.

Find the measure of each angle of the triangle HIJ. There will be three answers. (Hint: find the value of x first.)

Answers

= 3x - 2 + 3x - 9 + 4x - 9 = 180 ( Angle sum property )= 3x + 3x + 4x - 2 - 9 - 9 = 180 = 10x - 20 = 180 = 10x = 180 + 20 = 10x = 200= x = 200 / 10 = x = 20therefore the angle's are,58, 51, 71.HOPE IT HELPS !!!

10 is 60% of what number

Answers

Answer:

16.7

Step-by-step explanation:

10 = 60% of x

10 = 0.6x

0.6x = 10

x = 10/0.6

x = 16.666...

Answer: 16.7

1+1+2+3+3+5+4+2=2+1+1

Answers

Answer:

21=4 ?????

Step-by-step explanation:

huh???????????

Answer:

False

Step-by-step explanation:

1+1+2+3+3+5+4+2= 21

2+1+1= 4

You put an equal sign right smack down in the middle. 21 is not equal to 4 so this inequality is false.

A rectangular prism has a length of 12 in., a width of 5 in., and a height of 414 in. The prism is filled with cubes that have edge lengths of 14 in. How many cubes are needed to fill the rectangular prism? Enter your answer in the box.

Answers

Answer:

The answer is 16320

I took the test

Answer:

16320

Step-by-step explanation:

Same i took it

Help pls quick it’s due today!!!!:((ISHOW WORK IF NEEDED

Answers

Answer:

The independent variable is b. The dependent variable is p. The equation that represents the relationship between the variable is b = 6p.

Step-by-step explanation:

If you read it carefully, it says that b is equal to 6 times p. Since p is time with 6 it is dependent and b is independent. Hope this helps, thank you :) !!

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