Suppose a is an irrational number and is a rational number. Can their sum be rational? Explain your answer.

Answers

Answer 1

Answer:

It can

Step-by-step explanation:

If it ends up a whole number, then yeah-that's rational. But if it's a fraction-that's irrational.


Related Questions

What is the slope of a line perpendicular to the line whose equation is – 2y = 12.
Fully reduce your answer.

Answers

Answer:

-6 is the slope of the line

I need help with #40 ASAP…please help me this one

Answers

Answer:

Answer:

22801

Step-by-step explanation:

#40

No. of terms = (301 + 1)/2

No. of terms = 302/2

No. of terms = 151

Now,

Sum = n²

Sum = (151)²

Sum = 22801

A truck can be rented from Company A for $90 a day plus $0.80 per mile. Company B charges $50 a day plus $0.90 per mile to rent the same truck. F
number of miles in a day at which the rental costs for Company A and Company B are the same.
At
miles, the rental costs are the same from either company.
Enter your answer in
answer bo
nd ther
click Check Answer.
Help Me Solve This
View an Example
Get More Help
Clear All
CI

Answers

Answer:

400 miles

Step-by-step explanation:

the equation could be :

90 + 0.80 n = 50 + 0.90 n , n for Numbers of miles.

90 + 0.80 n = 50 + 0.90 n

90-50 = 0.90 n - 0.80 n

40 = 0.10 n

n = 40/(0.10)

n = 400

Answer:

400 miles

Step-by-step explanation:

Define the variables:

Let x = number of miles driven

Let y = total cost of rental

Company A

Given:  

Charge to rent the truck is $90 a day plus $0.80 per mile.

⇒ y = 90 + 0.8x

Company B

Given:  

Charge to rent the truck is $50 a day plus $0.90 per mile.

⇒ y = 50 + 0.9x

To find the number of miles for which Company A and Company B charge the same amount, substitute the equation for Company A into the equation for Company B and solve for x:

⇒ 90 + 0.8x = 50 + 0.9x

⇒ 90 + 0.8x - 50 = 50 + 0.9x - 50

⇒ 40 + 0.8x = 0.9x

⇒ 40 + 0.8x - 0.8x = 0.9x - 0.8x

⇒ 40 = 0.1x

⇒ 40 ÷ 0.1 = 0.1x ÷ 0.1

⇒ 400 = x

Therefore, the number of miles for which the rental costs are the same from either company is 400 miles.

To find the cost, substitute x = 400 into one of the equations:

⇒ y = 90 + 0.8(400)

⇒ y = 90 + 320

⇒ y = 410

Therefore, the daily cost from both companies for 400 miles would be $410.

Which of the following values are solutions to the inequality 5x – 10 < -5?
I. - 1
II. 9
III.1
None
I only
II only
III only
I and II
I and III
II and III
I, II and III

Answers

Answer:

-1

Step-by-step explanation:

Plug in all of the numbers for x. 1 is -5<-5 and -1 is -15<-5

What is the perimeter of triangle Q(3,-3) R(-4,5) P(3,5)

Answers

Answer:

QR = ( -7, 8) = √113

QP= ( 0, 8) = 8

PR= ( -7, 0) = 7

=> √113 + 8+ 7 = 15+√113

Find the simple intrest on$5,000 at 6% interest for 3.5 years

Answers

Answer:1,050

Step-by-step explanation:

A student council group is preparing flower arrangements for a nursing home. There are 162 roses, 108 dahlias, and 180
tulips to be used in the arrangements. The arrangements are identical and there are no leftover flowers.
How many roses, tulips, and dahlias are in each arrangement?

Answers

Answer:

Step-by-step explanation:

since GCF(162,108,180)=18

and you have not mentionned it was the maximum of arrangements you want:

[tex]\begin{array}{c|c|c|c}\#arrangement&\#Roses&\#Dahlias&\#Tulips\\-------&-------&-------&-------\\1&162&108&180\\2&81&54&90\\3&54&36&60\\6&27&18&30\\9&18&12&30\\18&9&6&10\\-------&-------&-------&-------\\\end {array}[/tex]

There is more than one (1) plane that can go through three collinear points. true or false?

Answers

The correct answer I think is true, I’m not forsure so you might have to double check

-2z(3c+9z)-7c(-5c+z)
solve using distributive property. does anyone know the answer?

Answers

Answer:

-18z² + 35c² - 13cz

Step-by-step explanation:

-2z(3c+9z)-7c(-5c+z)

-6cz - 18z² + 35c² - 7cz

-18z² + 35c² - 13cz

in a country for a percent of sales under 20 years of age of female 46 of those of a 20 ml if 27% of the total population are under 20 what percentage of the total is female​

Answers

Answer:

48% of the ppulation would be incorrect

Step-by-step explanation:

goodluck finding  a answer tho

In a circle of any size, what ratio does
pi (10) represent?
A radius : diameter
B circumference: area
C circumference : radius
D circumference : diameter

Answers

Answer:

I think D

Step-by-step explanation:

I’m pretty sure the answer will be D.

What is 0.782 rounded to nearest hundredth

Answers

Answer:

7 is the tenth place and 8 is in the hundredth place.

so it is rounded to 0.78 since 2 is below 5.

Step-by-step explanation:

please help me with this thank you ​

Answers

hi <3

1) as the value ahead of the tenths position is a 5, you would round up.

this gives you the answer of 1.6

2) as the value ahead of the hundredths position is a 4, you would round down.

this gives you the answer of 1.55

3) as the value ahead of the thousandths position is an eight, you would round up.

this gives you the answer of 1.555

hope this helps :)

PLEASE HELP I WILL MARK YOU BRAINLIEST

Last year, the girl's basketball team had 20 ninth-grade students and 10 sixth-grade students. what was the ratio of sixth-grade students to total students on the team

Answers

10:30

please mark me brainliest

solve ?

-4-4(-x-1)=-4(6+2x)​

Answers

[tex]-4-4(-x-1)=-4(6+2x)\\\\-4+4x+4=-24-8x\\\\4x=-24-8x \ \ /+8x\\\\12x=-24 \ \ /:12\\\\\huge\boxed{x=-2}[/tex]

PLEASE PLEAE PLEASE HELP
Teresa received a $90 gift card for a coffee store. She used it in buying some coffee that cost $7.58 per pound. After buying the coffee, she had $59.68 left on her card. How many pounds of coffee did she buy?

Answers

she bought 4 coffees! :)

Use completing the square to solve for x in the equation (x-12)(x+4)= 9,
оо
X = -1 or 15
x = 1 or 7
X=41 41
X=4+ V73

Answers

The answer is the last one X=4+V73

Solve the equation
-10x²+ 5x + 3

please help!!​

Answers

-95x+3. Use the exponents first to come up with -100x then add the -5 which gets you -95x. Then it comes to -95x+3

Answer:x=-5+/-isquareroot of 95

———————————-

20

Step-by-step explanation:

I need help with 9-12 Please show your work

Answers

Step-by-step explanation:

see my other answer, where I answered all 12.

You arrive in Paris with $800. How many Euros do you have to spend? ($1 = 0.9033
euros as of November, 2016)

Answers

Answer:

722.64 euros

Step-by-step explanation:

800 x .9033 is 722.64


Tavon has a gift card for $65 that loses $2.50 for each 30-day period it is not used. He has another gift card for $55 that loses $2 for each 30 day period it is not
used
a Write and solve an equation for the number of 30-day periods until the value of the gift cards will be equal
b. What will the value of each card be when they have equal value?

Answers

Let x be the number of 30 days.

(a) 65 - 2.5x = 55 - 2x

(b) 65 - 2.5x = 55 - 2x
65 - 55 = 2.5x - 2x
0.5x = 10
x = 20
Therefore, each card will result in the value of $15 when they have equal value.

PLZ HELP ANSWER ALL PARTS A & B PLZ & THANK YOU!

The time required for a certain chemical reaction is related to the amount of catalyst present during the reaction.The domain of the relation is the number of grams of catalyst,and the range is the number of seconds required for a fixed amount of the chemical to react.The following relation is the data from several reactions:[(2,180),(2.5,6),(2.7,0.05),(2.9,0.001),(3.0,6),(3.1,6)(3.1,15)(3.2,37),(3.3,176)}.

A. Is the relation a function?

B. If the domain and range were interchanged,would the relation be a function?Explain.

Answers

     "Relation is a function if the terms in domain corresponds a unique value in range"

A). Given relation is a function.

B). Interchanged relation will not be a function.

     A). From the given ordered pairs, x-coordinate represents the term of Domain and y- coordinate represents the Range.

We find each term of domain is associated with a unique term in range.

Therefore, relation is a one-to-one function.

     B). If the terms in range and domain were interchanged, one term 6 of domain relates with two different values of range,

x = 6, y = 2.5

x= 6, y = 3

   Since, a term of domain can't have two different values in range,

   Therefore, interchanged relation will not be a function.

Learn more,

https://brainly.com/question/2253924

HELP PLS AND THANK U

Answers

Answer:

C ≥ 8

the absolute value of the variable c is greater than or equal to 8

Step-by-step explanation:

Which of the following is the quotient of the complex numbers below?

Answers

Answer:

The correct choice is option C. -7/5 + 11/5i

Step-by-step explanation:

  3 + 5i / 1 - 2i

= (3 × 1 + 5 (-2)) + (5 × 1 - 3(-2)) / 1^2 + (-2)^2

= -7 + 11i / 5

= -7/5 + 11/5i

Answer:

option C. -7/5 + 11/5i

I need help ASAP!!! 8(2w=-2)=7(3w+2)

Answers

Answer:

well i dont know what you meant by the misplaced equal sign, but i removed it, this is the equation i solved

8(2x-2)=7(3w+2)

Step-by-step explanation:

the answer is in the file below

If this answer helped you out, please consider leaving a thanks,  thank you.

Please awnser
Find m Find m

Answers

Answer:

x = 37

m∠a = 104°

m∠b = 76

Step-by-step explanation:

Two supplementary angles will add up to 180 degrees. We can create an equation and solve for x.

3x - 7 + 2x + 2 = 180

~Combine like terms

5x - 5 = 180

~Add 5 to both sides

5x = 185

~Divide 5 to both sides

x = 37

~Find the measure of angle A

3(37) - 7

104

~Find the measure of angle B

2(37) + 2

76

Best of Luck!

A line passes through the point (8,6) and has a slope of -3/4

Answers

Answer:

y = -3/4x + 12

Step-by-step explanation:

Use slope intercept form [ y = mx + b ], the point given, and the slope to find the y-intercept.

6 = -3/4(8) + b

6 = -6 + b

12 = b

Now input the values we are given and solved for into the formula.

y = -3/4x + 12

Best of Luck!

x= 0.687 repeating as a fraction

Answers

Answer:

687/999

Step-by-step explanation:

Let x=0.687687....

Then 1000x=687.687687...

                x=     0.687687

Subtract x from 1000x

999x = 687

So

x = 687/999

Determine the equation of the line that passes through points (2,4) and (6,1)

Answers

Answer:

y = -3/4x + 11/2

Step-by-step explanation:

y2 - y1 / x2 - x1

1 - 4 / 6 - 2

-3 / 4

-3/4

y = -3/4x + b

4 = -3/4(2) + b

4 = -3/2 + b

11/2 = b

862 rounded to the nearest hundred​

Answers

Answer:

900

Hopes this helps :)

862 rounded off the nearest hundred is 900

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