Which number produces an irrational number when added to 0.4?
O A. 0.444...
B. 9
C. 3pi
D. 2/7

Answers

Answer 1

Answer:  C) 3pi

pi is irrational, and so is 3pi

The expression 3pi+0.4 is overall irrational as well.

If x is irrational and y is rational, then x+y is irrational

This is why choice C is the answer.

The other answer choices are rational values which would make the sum rational, so that's why we can rule them out.


Related Questions

Alana biked 15 miles in 1 hour. How many miles did she bike in 3 hours?​

Answers

Alana biked 45 minutes in 3 hours.

Answer:

45 miles

Step-by-step explanation:

15 miles = 1 hour

15 x 3 = x

x = 45

45 miles = 3 hours

Paige ran 3 miles on Monday, walked 8 miles Tuesday
and ran a combined 11 miles on Wednesday and
Thursday. How many total miles did Paige exercise in
four days?

Answers

Answer:

22

Step-by-step explanation:

add 11 + 8+ 3

Find the amount of simple interest that $400 would earn at 8% per year by the end of 3 years.​

Answers

Answer:

400 times 8%= 32 times 3=96

Step-by-step explanation:

Select the correct answer from each drop-down menu. The velocity, v, in meters/second, of an object with a mass of m, in kilograms, and kinetic energy of K, in joules, is given by this equation. Use the equation to complete this statement. The kinetic energy of a ball with a mass of 2 kilograms that is rolling at a velocity of 5 meters/second is joules.

Answers

Answer:

25

Step-by-step explanation:

The kinetic energy of a ball with a mass of 2 kg that is rolling at a velocity of 5 m/s is 5 Joules

Calculating Kinetic energy

From the question, we are to determine the kinetic energy of the ball

From the given equation for the velocity,

[tex]v = \sqrt{\frac{2K}{m} }[/tex]

We will make K the subject of the equation

 [tex]v = \sqrt{\frac{2K}{m} }[/tex]

Take the squares of both sides

[tex]v^{2} ={\frac{2K}{m} }[/tex]

Multiply both sides by m

[tex]mv^{2} ={\frac{2K}{m} } \times m[/tex]

[tex]mv^{2} =2K[/tex]

∴ [tex]K = \frac{1}{2} mv^{2}[/tex]

Now, for the kinetic energy of a ball with a mass of 2 kilograms that is rolling at a velocity of 5 meters/second

That is,

m = 2 kg

and v = 5 m/s

Putting the parameters into the equation, we get

[tex]K = \frac{1}{2} \times 2 \times 5^{2}[/tex]

K = 25 J

Hence, the kinetic energy of a ball with a mass of 2 kg that is rolling at a velocity of 5 m/s is 5 Joules

Learn more on Calculating kinetic energy here: https://brainly.com/question/25959744

Here is the complete question:

Select the correct answer from each drop-down menu. The velocity, v, in meters/second, of an object with a mass of m, in kilograms, and kinetic energy of K, in joules, is given by this equation.

[tex]v = \sqrt{\frac{2K}{m} }[/tex]

Use the equation to complete this statement. The kinetic energy of a ball with a mass of 2 kilograms that is rolling at a velocity of 5 meters/second is joules.

#SPJ2

apesapesapesapesapesapesapesapesapesapesapesapesapesapes

Answers

Answer:

can you be more specific with your question?

Step-by-step explanation:

As what I understood your question to be

(a-t)^2 -(t + a)

when a is 8, and t is 3

(8-3)^2 - (8+3)

(5)^2- (11)

25- 11

= 14

What is the square root of 1,567?

Answers

39.5854 (this answer is rounded)

Answer:

39.585

Step-by-step explanation:

Plz help me with 6th grade math- I’m dumb

Answers

It’s length times width time height so the first one should be 75 and I have a link to answer them reply If you want it?

HELP!! THIS WAS DUE AT MIDNIGHT, AND I STILL HAVE ANOTHER ONE THAT WAS DUE AT MIDNIGHT
144 students enter a spelling bee, but only 1/6 of the group will make it into the semi-final round, and only 2/3 of that group will make it into the final round. How many students will enter the final round of the spelling bee?
I know I'm sorry the person that made this problem did a terrible job on wording it. HELP!!!!!!​

Answers

Answer:

Hey buddy, here is your answer. Hope it helps you.

Step-by-step explanation:

144 students enter a spelling bee contest.

Step 1

For the semi final round we are told that only 1/6 of the group will make it into that round.

This is calculated as

1/6 × 144/students = 24 students.

This means that only 24 students would make it into the semi final rounds.

Step 2

We are also told in the question that only 2/3 of THAT group would make it into the final round.

" THAT" group been referred to in the question means the number students that made it to the semi final round

This is calculated as

2/3 of that group( the group that made it to the semi finals)

= 2/3 × 24 students

= 16 students.

Therefore, the number of students that will enter the final round of the spelling bee is 16 students.

Which table represents y as a function of x?
PLEASE HELP??
OR BRAINLIEST:((??

Answers

i believe the correct answer is B

help me pleaseeeeeee

Answers

Step-by-step explanation:

Similar triangles

[tex] \frac{6}{uv } = \frac{8}{3} [/tex]

uv=18/8

uv= 2.25

What is the area of the figure?
3 yd
6 yd
9 yd
Syd

Answers

Answer:

D) 48 yds^2

Step-by-step explanation:

A=(h(b)b)/2

Right side triangle equals 12

Left side triangle equals 9

A=wl

Rectangle equals 27

9+27+12=48

Which of the following ordered pair(s) is/are solutions to the following system of
equations?
3x - 5y = 15
5x – 10y = 25
(11,3)
(3. - 1)
(-7,- 6)
All of the above

Answers

Answer:

none of them the correct answer is (x,y) (5,0)

The triangles are similar. Find the value of x. Round to the nearest tenth.

Answers

Answer:

the value of x is 46 round to the nearst tenth thatll be 50

Step-by-step explanation:

Why is 25 a composite number? (1 point)
It is odd.
OIt has more than two factors.
O All of its factors are prime numbers.
It is not divisible by any number except one and itself.

Answers

Answer:

it has more than 2 factor

Answer:

I think its b I'm pretty sure

Equations and Inequalities One-Pager

Answers

Could I see a picture cause not sure

Determine if the figures below are congruent? Explain why or why not. I need it for a test please answer fast!

Answers

Answer:

Yes they should be congruent ones just at a different angle.

Step-by-step explanation:

The ratio of girls to boys in Liza's classroom is 5 to 4.
How many girls are in her classroom if there is a total of 27 students?

Answers

Hi!

The answer is: 15 girls.

__________________________________________________________

Let

x-----> the number of girls

y-----> the number of boys

we know that

- x+y=27, Which is equation A.

- x/y = 5/4

- isolate the variable y

- y=4/5x, Which is equation B.

- 9/5x=27

- x=5x27/9

- 15 Girls.

__________________________________________________________

Hope this helps!

Select the correct graph of ABC

Giving brainliest

Answers

Answer:

The answer is B

hope it helps

The answer is D because A is at 1,1. B is 4 units away from A and C is 3 units away from B.

Hope this helps!

Find the Error A student graphs the relationship y = x on a coordinate plane. She says the slope is O because there is no coefficient. Find her
mistake and correct it.

Answers

Answer:

y=x times factor of 12 abstracted by -93

Step-by-step explanation:

The slope is the ratio of y's coordinate to x's coordinate thus the slope of y = x will be y/x = 1.

What is the slope?

A slope is a tangent or angle at a point or a slope is the intensity of inclination of any geometrical lines.

Slope = Tanx where x will be the angle from the positive x-axis at that point.

A linear equation or function is given as ;

y = mx + b

Now,

At x = 0 ⇒ y = b so it will be a y-intercept.

As per the given, y = x

The x's coefficient is 1 thus slope will be 1.

Or, y/x = 1

Hence "The slope is the ratio of y's coordinate to x's coordinate thus the slope of y = x will be y/x = 1".

To learn more about slopes,

https://brainly.com/question/3605446

#SPJ5

Which of the following is the correct equation of the line that is parallel to y=−1x−5, and has a y-intercept at (0,1)?

y=−1x+0y is equal to negative 1 x plus 0

y=1x+5y is equal to 1 x plus 5

y=−1x+1y is equal to negative 1 x plus 1

y=5x−1

Answers

Answer:

The answer is option 3.

Step-by-step explanation:

When both lines are parallel, they will have the same gradient. In a linear equation, y = mx + b where m represents gradient and b is y-intercept :

Let m = -1, b = 1

y = -1x + 1

Answer:

the answer is option 3 like the first person said. no trollin

Step-by-step explanation:

Samson owes his friend
$42.75. If Samson just
got paid $167.25 and
pays back his friend.
How much money will
he have left over?

Answers

the answer would be $124.50:)
Ok .……………………124.50 ok

18inch/4secs how far would the car travel in 1 second?

Answers

Answer:

4.5 inch per 1 sec

Step-by-step explanation:

18/4=4.5

6143 × 45 work out ​

Answers

Answer: 276,435

Step-by-step explanation:

yes

If a restaurant charges $9.90 for 2 sandwiches, how much will the restaurant charge for 15 sandwiches?

Answers

they will charge 74.25

what is the slope of the line? SOMEONE HELP ME PLSSS

Answers

The slope of the line is 3/2

how to find square root of 8653

Answers

Answer:

I don't think you can so keep the number 8653 under the radical :)

Answer:

you cant do it so keep the number 8653

Step-by-step explanation:

A square root function, that is stretched by a factor of 3, and shifted 4 units left and 6 units up.

Answers

Answer:

The square root function will turn to;

y = 3 √(x + 4) + 6

Step-by-step explanation:

Let the square root function be ;

y = √x

Now, let’s stretch this by a factor of 3

This means we are dilating by a factor of 3

Mathematically, this will be

y = 3 * √x = 3 √x

Shifting this 4 units up means that we are extending the x-axis value by 4 units

That will be ;

y = 3 √x + 4)

Now shifting this 6 units up, we finally will have;

y = 3 √(x + 4) + 6

The value of y varies directly with x. If x=6, then y=21
.
Find the value of x when y=70

Answers

Answer:

Direct proportionality

If the value of y varies directly with x, the value of x when y=70 is 20.

Given that, the value of y varies directly with x.

What is a proportional relationship?

Proportional relationships are relationships between two variables where their ratios are equivalent. Another way to think about them is that, in a proportional relationship, one variable is always a constant value times the other. That constant is know as the "constant of proportionality".

We know that, the value of y varies directly with x

y ∝ x

⇒ y = kx

⇒ k = y/x

⇒ k = 21/6

⇒ k = 7/2

So, k = y/x

7/2 = 70/x

⇒ 1/2 = 10/x

⇒ x = 20

Therefore, if the value of y varies directly with x, the value of x when y=70 is 20.

To learn more about the proportional relationship visit:

brainly.com/question/12917806.

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Which could be the missing first term of the expression that, when fully simplified, would be a binomial with a degree of 4? Select three options.

________ – 5xy3 + 9x2y

0
5xy3
9x2y
8y4
4xy3

Answers

Answer:

Yo The answer is A,C,E or 0, 9x2y, and 4xy3

Step-by-step explanation:

Got it right on Edge. Good luck

Answer: A, C, E

Step-by-step explanation:

The number of students enrolled at a college is 13,000 and grows 4% each year, what is the initial amount

Answers

Answer:

13,000

_____

4%

I'm sorry if this is incorrect

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