Determine whether each number is rational or irrational
determine whether each number is rational or irrational - 1

Answers

Answer 1
Answer:

A is rational

B is irrational

Product of a and b is irrational.



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Approximately 4/5 of U.S homeowners have a cell phone. what percent of homeowners do not have a cell phone

Answers

The percent of homeowners that do not have a cellphone is 20%.

What are percentages?

A percentage is a number or ratio that can be expressed as a fraction of 100. If we have to calculate the percent of a number, divide the number by the whole and multiply by 100. Hence, the percentage means, a part per hundred. The word percent means per 100. It is represented by the symbol “%”

Given here, Approximately 4/5 of U.S homeowners have a cell phone.

Therefore, the fraction of homeowners that do not own a cell phone is        1-4/5=1/5 and thus 1/5×100 = 20%

Hence, The percent of homeowners that do not have a cellphone is 20%.

Learn more about Percentages here:

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Divide 4 by 5 to get .8 Move the decimal two places to get 80%. There is 20% left so 20% percent of homeowners do not have a cell phone 

Area of 52 square feet width of 6.5 feet what is the length

Answers

Answer:

8 feet

Step-by-step explanation:We know the area is 52 feet and the width is 6.5 feet, and area is length x width = area, and we know length x 6.5 = 52.

So if we do 52/6.5 is the length and 52/6.5 is 8.

Answer:

8 ft

Step-by-step explanation:  

all you have to do is divide the total area by the quantity you already have

so 52/6.5=8

The volume of a cube is 512 cm3. What would change if the volume of the cube were measured in cubic meters?

Answers

1\ m=100\ cm\ \ \ \Rightarrow\ \ 1\ m^3=1,000,000\ cm^3\ \Rightarrow\ \ 1\ cm^3=0.000001\ m^3\n \n512\ cm^3=0.000512\ m^3

A rectangle has an area of 30 m² and a perimeter of 34 m. What are the dimensions of the rectangle?

Answers

15 AND 2. 
BECAUSE 15+15+2+2=34 
                and 15×2= 30
   
                           .P.S. PHANTOM SNIPERS

Help me please ;(Please help but don't use a website to answer this question thank you so much.



1. Describe a situation that models a linear pattern and then describe a situation that models a nonlinear pattern. Do not state which situation is linear and which is nonlinear.

Your classmates will need to determine which is which and then write a function that models the linear situation.

Your classmates will also need to write 1 ordered pair that is a solution to the linear function and explain its meaning in the context of the situation.

Answers

While it says not to state it, I will state which one is which, just for clarification.

Linear Pattern: A person is paid $10 for every hour they work. Before they start working, they are given an additional $5. They receive no raises in their pay.
This is linear because the pay is constant, and they aren't receiving any additional money. The equation for this would be y = 10x+5, x is the amount of hours they work.

Non-Linear Pattern: A person is paid $10 for every hour they work. Before they start working, they get are given an additional $5. For every 30 minutes they work after hour 4, they receive a $1 raise.
This is non-linear because the pay, after a certain amount of time, would go up, and the graph would soon start going higher after hour 4.

An ordered pair for the linear would be: (5, 55)
After working 5 hours, they would have $55.

An ordered pair for the non-linear would be (5, 56)
After working for 5 hours, they would have $56. 

What is 2 to the fourth power plus 81 minus 50 plus 5?

Answers

I believe it is 52. Sorry if I'm wrong.

Answer:52


Step-by-step explanation:

2^4 = 16

Then..

16+81 =97

Then..

97-50 = 47

Lastly..

47+5 = 52