Mathematics High School

Need some help.
Which numbers are rational?

1. 4/5
2. √4/5
3. π
4. √25/4
5. 3.14
6. √10/49

Answers

Answer 1

Answer:

1, 4, 5

Step-by-step explanation:

rational is when there is an end to the number.

Related Questions

Lorraine and Bea are learning to type on a computer keyboard, Lorraine's
typing speed is represented by the equation y = 9x where y is the number of
words she types and is the number of minutes, Bea's typing speed is given by the graph

Answers

Answer:

A

Step-by-step explanation:

I took one for the team

Answer:

yes for the exam its a

Step-by-step explanation:

help me please i need to do this fast

Answers

hey im too lazy to do it but u should do the pythagorean theorem to find out

Marcus spent 10 hours doing his homework last week. This week he spent 11 hours doing homework. He says that he spent 110% more time doing homework this week. Is he correct? Show your work to justify your decision.

Answers

Answer:

Yes he is correct, If it was 100% then it would stay the same 10 hours. But since it's 110%, it is in fact 11.

Step-by-step explanation:

I need help please I forgot how to do this

Answers

Answer:

no it is not proportional

Answer:

No 3/9 would be proportional to 6/18

Step-by-step explanation:

I think

The Orlando Solar Bears had a successful season on the ice winning 80% of their games. They won a record of 32 games. How many games are in a season?

Answers

Answer:

Step-by-step explanation:

You'd do 80% times 32. You have to move the 80 to the left 2 times. then multiply.

The Jackson's dinner cost $125. They left $21.25 as a tip. What was the percentage of the tip? Please explain and help me! THANK YOU!!!

Answers

Answer:

17%

Step-by-step explanation:

to find the percentage of something, you have to fill out the following formula:

x/100 = 21.25/125. Basically that is saying that some percent out of 100 is equal to 21.25 out of 125. To solve that, you have to cross multiply:

125x = 2125

then you have to divide, to single out x:

the answer is 17

so it is 17%

17%
Divide the tip by the amount dinner was and you get your percentage for the tip

What is the length of DC?
O 2 units
O 3uníts
O 6uníts
O 9 unit

Answers

Answer:

The correct option is;

3 units

Step-by-step explanation:

From the given figure, we have that segment DE is parallel to segment CB of triangle ABC

According to triangle proportionality theorem we have that segment DE which is parallel to segment CB of triangle ABC, divides the other two sides the triangle ABC proportionally

We have;

[tex]\overline {DC}[/tex]/[tex]\overline {AD}[/tex]= [tex]\overline {EB}[/tex]/[tex]\overline {AE}[/tex]

[tex]\overline {DC}[/tex]/9 = 4/12

[tex]\overline {DC}[/tex]= 9 × 4/12 = 3

[tex]\overline {DC}[/tex]= 3 units

The length of the segment DC = 3 units.

Find the measurements of angles a, b and c. PLZ HELP

Answers

A and B are both 115° and C is 65° Bc 180°-115°=65°
I don’t really know to be honest

a DJ has a total of 1075

Answers

Yes. Very well. Where is the full question

In the diagram below, Bo is parallel to XY. What is the value of X?
Η
TB
D
X"
Υ
Α. 73
Β. 97
Ο Ο Ο Ο
C. 87
D. 83

Answers

Answer:

83°

Step-by-step explanation:

Since BD and XY are parallel then 83 and x are corresponding angles.

What is the simplest form of expression

Answers

Answer: 6^30 (the last option)

Explanation:

In the numerator it is a power raised to a power so you multiply. It gives you 6^36.

Now you have:

6^36 / 6^6

Now you subtract the powers when you are dividing because that is the exponent rule

36 - 6 = 30

Final Answer: 6^30


Which statement below best describes what a ratio is.
A . A comparison
B. A comparison of many things
C.A number
D. A comparison of two quantities using diwasion

Answers

A. A ratio is a comparison

Can someone help me on this and thanks :)

Answers

just download a app called math away

Answer:

(0, -2)

Step-by-step explanation:

You are correct: x = 0 at the y-intercept, and the y-intercept is show with the y-coordinate of -2

Meredith needs $399 to buy a tablet computer. She wants
to earn enough money babysitting to cover at least two-
thirds of the cost.
If she earns $8 an hour babysitting, write an inequality that
can be used to solve for b, the number of hours she must babysit.

Answers

Answer:

8b =266

Step-by-step explanation:

2 3rds of 399 is 266

then just solve for b

sorry if this looks weird i havent written inequalities since 8th grade

What is 8.1% of 18.43

Answers

9514 1404 393

Answer:

  1.49283

Step-by-step explanation:

8.1% as a decimal is 0.081

The product of that and 18.43 is ...

  0.081 × 18.43 = 1.49283

__

If this is a monetary value, it would round to 1.49.

What’s the sum of a number x and three is equal to eleven

Answers

Answer:

x = 8

Step-by-step explanation:

your equation can be written as: x + 3 = 11

subtract 3 from both sides to isolate x: x = 8

your answer is 8

which line is transversal​

Answers

Answer:

line l is the transversal

Line L is transversal

Solve: -1/2x +2=-x+7​

Answers

Answer:

x = 10

Step-by-step explanation:

-1/2x + 2 = -x + 7

multiply by 2 so that -1/2x becomes -x

(-1/2x + 2 = -x + 7)2

-x + 4 = -2x + 14

subtract 4 from both sides

-x = -2x + 10

add -2x to both sides

x = 10

Each of the numbers 0, 2, 4, 6, 8, 10, 12, and 14 is written on a separate sheet of paper and placed into a box. One piece of paper is selected at random. Find the probability that the piece of paper selected contains the number 8 or a number less than 12.

Answers

Answer:

For the second, all numbers less than 12, that would be 87.5%

Step-by-step explanation:

There are eight numbers. 100 divided by 8 is 12.5. 12.5 multiplied by 7 is 87.5.

brooke plays on her schools softball team. Last season she was at bat 500 times and made a safe hit 28% of the time. How is 28% expressed as a fraction


PLEASE HELP please?

Answers

Answer:

28/100

Step-by-step explanation:

HELP ASAP!! WILL MARK BRAINLIEST!!!
Varsha wants to stay in Bolandia City for four nights and has a choice of four hotels. She will stay at the same hotel for all four nights. She requires internet access throughout her stay and breakfast each morning.
Which hotel is the cheapest.
Need steps.

Answers

Answer:

First of all i just did this in school! <3 And second of all I WILL HELPP!!

Step-by-step explanation:

its luxuryyyyy!!!!!!!!!

- 3/8 divided by 2/3

Answers

Answer: -0.5 maybe

Step-by-step explanation:

It will be  -0.0625

Hope this  is helpful to you =)

can someone help me i would really appreciate you i dont understand this

Answers

Answer:

127 degrees

Step-by-step explanation:

If <1 is 53 degrees, then its vertical angle is also 53 degrees. Same side interior angles are supplementary which means they add up 180 degrees.

180 - 53 = 127

Solve five ninths plus four sixths

sixty six fifty fourths

ten fifteenths

nine tenths

thirty ninths

Answers

Answer:

Your answer will be Sixty Six Fifty Fourths

Step-by-step explanation:

Make it the same denominator so you can add them (18.)

Multiply 5/9 by 2 and multiply 4/6 by 3.

10/18 + 12/18 = 22/18.

Since there is not 22/18 listed, you can use this fraction as a proportion. The only proportion that can be evident is answer A, as when you multiply 22/18 by 3, you get 66/54.

Hope this helps! ;)

y=-3x+6 and y=5x-2 for y

Answers

Answer:

The first one is x=2 and the second one is x=2/5 or 0.4

Step-by-step explanation:

help me please, i need a answer asap

Answers

Answer:

14/24 can be a answer?

Step-by-step explanation:

Hope this helped :)

A d + b = 180

B. C + b = d + c

C. Reflect across line CE. Then, angle CBD is the image of angle EBA.

D. Rotate 180 degrees using center B. Then, angle CBD is the image of angle EBA.


E. Reflect across the angle bisector of angle ABC. Then, angle CBD is the image of angle ABE.

Answers

I know B is true, but i’m unsure for the other choices.

whats the geometric mean of 1/2 and 8

Answers

Answer:

4

Step-by-step explanation:

1/2 of 8 is 4

Answer is 2. Geometric mean takes the n-th root of the product of the values. So 1/2*8=4, and since there are two numbers, you take the 1/2 root or square root.

So the answer is the square root of 4 which is 2.

Solve for n:
12n + 3 – 3n = 30
n = ?

Answers

Answer:

n=3

Step-by-step explanation:

12n-3n=30-3

9n=27

n=27/9

n=3

im struggling :(((((((((((

Answers

Answer:

Step-by-step explanation:im sorry im only 11

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