Which sum is rational?
A. 1 + 18
B. 25 + 1.75
C. V3 + 5.5
D. I+V2

Which Sum Is Rational?A. 1 + 18B. 25 + 1.75C. V3 + 5.5D. I+V2

Answers

Answer 1

Answer: B. √25 + 1.75.

Step-by-step explanation: Rational Numbers are numbers that terminate or don't need to be terminated.  For example, 1/3 is a repeating number, but we can terminate the value, whereas pi is never ending, and there is no terminating with that value.  Numbers like 5.56 and 7/8 are rational because they don't need to be terminated to be rational.  √25 is 5, no decimals to terminate or anything, and that makes the value rational.  1.75 is also rational, and that's why equation c is fully rational.  √3 and √2 can't terminate, because both are 1.73205080757 and 1.41421356237, which means that they still can't terminate.  Pi cannot terminate, so that's why the answer choices with pi aren't rational.

Hope this helps! :)


Related Questions

Slope of line that passes through (3,6) and (8,2

Answers

Answer:

-4/5

Step-by-step explanation:

To find the slope of a line with two points, we do y2-y1/x2-x1.

y2 is 2. y1 is 6.

2-6 = -4

x2 is 8. x1 is 3

8-3 = 5

-4/5 is the answer meaning it is the slope.

Answer:

Slope of this line = -4/5.

Step-by-step explanation:

The formula is

Slope = (y2-y1)/(x2-x1)  where (x1, y1) and (x2, y2)  are  the 2 points.

So here we have:

(6-2)/(3-8)

= -4/5.

cual es la inversa de la funcion f(x) = -1/2 (x + 3 )​

Answers

Answer:

-2x - 3

Step-by-step explanation:

f(x) = -1/2(x + 3)  is the same as  y = -1/2(x + 3)

change all y terms to x terms and all x terms to y terms

So  change  y = -1/2(x + 3) to x = -1/2(y + 3)

Now use the new equation and slove for y

x = -1/2(y + 3)

-2x = -2· -1/2 (y + 3)

-2x = y + 3

-2x - 3 = y

Rewrite your answer y = -2x - 3

Write the equation in the  inverse

Which table contains only the points that lie on the line represented by y=5/4x-3​

Answers

Answer:

A table that represents a linear equation should be your answer. This means your slope should be constant/straight not like a parabola or absolute function.

Step-by-step explanation:

When you're trying to solve something using slope-intercept you can graph it or plug numbers for (x,y).  


Graph:

Start at (0,-3)

Then plot the point since that is your Y-Intercept

Then go 5 up and 4 over to find your next point.

Once done, you should connect the dots to form a slope or a linear equation.

I need help with is question please.

Answers

D Undefined is the right answer to your question

Aannswer..............​

Answers

Answer:

It's telling you what to do...Um I can do this tho...

You do the first step...And you move on..It says..Across That tells you to go across. And you keep moving on. Do one step at a time.

I dk how to really help you.

Step-by-step explanation:

~XxRexXx~

Find the volume of the shaded region of the figure. Round answer to the nearest hundredths place.

Answers

Answer:

Step-by-step explanation:

Cylinder

Start by finding the volume of the cylinder as though the spheres were not there.

Volume of a cylinder = pi r^2 h

r = 6 inches

h = 25 inches.             Put the givens in the formula

Volume = pi 6^2 * 25

Volume = pi * 36 * 25

Volume = 900 pi

One sphere

Don't try and find the volume of both spheres. Just do one and double it.

V = pi * (4/3) * r^3

r = 6 inches

V = pi * (4/3) * 6^3

V = pi * 288 Cubic inches

Two spheres

Total volume spheres = 2 * 288 pi

Total Volume of spheres = 576 pi

Volume of the shaded region.

The following will act as a formula for the answer to the question

V_shade = Volume of the cylinder - volume of the 2 spheres

Substitute values into formula

Volume shade = 900 * pi - 576* pi       Take out common factor (pi)

Volume shade = pi  * (900 - 576 )

Volume of the shaded area

Volumne shade = pi *324

pi = 3.14

Volume shade = 1017.36

Answer:

volume of the shaded region = 1018

Step-by-step explanation:

Please show the figure in a piece of paper

Answers

Step-by-step explanation:

If you have any dout you can ask me.

Find the equation of the line that goes through the point (2, -3) and has a slope of -1.
y = -x - 1
y = 2x - 3
y = -x - 3
y = -x + 2

Answers

Answer:

y = -x - 1

Step-by-step explanation:

soo since we already know the slope we can subsitute it to the slope form equation

y = mx + b

y = -x + b

now to find the y intercept we have to subsitute the given point

-3 = -(2) + b

-3 = -2 + b

b = -1

Answer:

y = -x - 1

Step-by-step explanation:

Using the process of elimination, we can immediately eliminate b) (y = 2x - 3).

Why? It has a slope of 2, and our answer wants a line with a slope of -1.

y = mx + b

m is the slopeb is the y-intercept.

To find the line that goes through (2, -3), we substitute our 3 answer choices (A, C, and D) with 2 (for x-values) and -3 (for y-values).

(2, -3)

y = -x - 1

-3 = -2 - 1

-3 = -3

This statement is true

(2, -3)

y = -x - 3

-3 = -2 - 3

-3 = -5

This statement is false

(2, -3)

y = -x + 2

-3 = -2 + 2

-3 = 0

This statement is false

Therefore, the correct answer is a) y = -x - 1

*View the graph to verity the answer*

Hope this helps!

Bradley owns 2 surfboards and 4 wet suits. If he takes one surfboard and one wet suit to the beach, how many different combinations can he choose?​

Answers

Answer:

The answer is eight

Step-by-step explanation:

4*2=8

Quick help please it will mean a lot if you help me :)

Answers

Answer:

Green heart is 2 and blue shape is 8.

Step-by-step explanation:

We know 1 purple drop equals 3.

So 3+3 = 6

The total weight is 16 so we can do 16-6 = 10

We have 10 left. Since we need the weight to be balanced the green heart must be 2.

Because then it would be 8 on 1 side (2 purples equals 6 and 1 heart equals 2, so 6+2=8) and 8 on the other side (8+8=16).

There are 20 machines at the gym and Manuel wants to perform exercises on 5 different machines while he is there. How many different ways can he select the machines to use?
31008

1860480

100

15504

Answers

Total machines: 20 Required: on 5 different machines

Selection of machines is persons choice and not arranged specifically, thus we will use Combination.

⇒ 20C5

⇒ 20!/5!(20-5)!

15504

n=20r=5

Use combination

total ways

[tex]\\ \rm\dashrightarrow ^nC_r=\dfrac{n!}{r!(n-r)!}[/tex]

[tex]\\ \rm\dashrightarrow ^{20}C_5[/tex]

[tex]\\ \rm\dashrightarrow \dfrac{20!}{5!15!}[/tex]

[tex]\\ \rm\dashrightarrow \dfrac{20(19)(18)(17)(16)(15!)}{5(4)(3)(2)(15!}[/tex]

[tex]\\ \rm\dashrightarrow 15504[/tex]

can some help me with this one question pls

Answers

Answer:

turn it

Step-by-step explanation:

A cylindrical piece of iron pipe is shown below. the wall of the pipe is 0.75 inch thick, and the pipe is open at both ends: the figure shows a cylinder of height 16 inches and diameter 6 inches. what is the approximate inside volume of the pipe? 113 cubic inches 452 cubic inches 410 cubic inches 254 cubic inches

Answers

Answer:

254.4

Step-by-step explanation:

if its 0.75 inch thick, then to get the radius you just times to thickness by 2 which gets 1.5.

6-1.5= 4.5

to get the radius you divide 4.5 by 2 which gets 2.25

and then put this in the formula you get=

V=πr2h=π·2.252·16≈254.469

so the answer is 254

edit:i might be wrong feel free to correct me

Answer: 254

Step-by-step explanation:

I need help with #1 & #2

Answers

Answer:

2. Letter B, see the attachment?

and also, I can't answer the #1 because I can't read it. I'm sorry

Already done #1 in your other question.

#2

2x-y=4y=2x-4

Comapre to slope intercept form

slope=m=2

Parallel lines have equal slope

Equation in point slope form

y+11=2(x+3)y+11=2x+6y=2x-5

What is the completely factored form of f(x) = x3 – 2x2 – 5x 6? f(x) = (x 2)(x – 3)(x 6) f(x) = (x 2)(x – 3)(x – 6) f(x) = (x – 2)(x 3)(x – 1) f(x) = (x 2)(x – 3)(x – 1)

Answers

[tex]x^3-2x^2-5x +6\\\\=x^3-x^2-x^2+x-6x+6\\\\=x^2(x-1)-x(x-1)-6(x-1)\\\\=(x-1)(x^2 -x -6)\\\\=(x-1)(x^2 -3x +2x -6)\\\\=(x-1)\textbf{[} x(x-3) +2(x-3)\textbf{]}\\\\=(x-1)(x-3)(x+2)[/tex]

The requried, factored form of the given expression is (x - 1)(x - 3)(x + 2).

What are the factors?

A number or algebraic expression that evenly divides another number or expression—i.e., leaves no remainder—is referred to as a factor.

To factor the polynomial f(x) = x³ – 2x² – 5x + 6 completely, we can use a combination of the rational root theorem and synthetic division.

We can use synthetic division to test each possible root and see if it is a factor of the polynomial. Starting with x = 2, we have:

2 | 1 -2 -5 6

  | 2 0 -10

  |_____________

1 0 -5 -4

Since the remainder is not zero, x = 2 is not a factor of the polynomial. Continuing with the other possible roots, we find that x = 1 and x = 3 are roots, but x = -1, x = -2, x = -3, and x = -6 are not roots.

Therefore, we can factor the polynomial as follows:

f(x) = x² – 2x² – 5x + 6

= (x - 1)(x - 3)(x + 2)

So the completely factored form of f(x) is f(x) = (x - 1)(x - 3)(x + 2).

Learn more about Factors here:

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What is the value of K?

Answers

Answer:

k = 2.31

Step-by-step explanation:

You will use the Law of Cosine to determine the unknown angles, then you will use the Sine Rule to determine the unknown side.

A university decides to accept only the top 15% of

the applicants applying. Their acceptance is based on

performance on an entrance exam. If the mean was 70 and

the standard deviation was 8, then what is the minimum

score needed to be accepted to the university?

Answers

The minimum score needed to be accepted in the university when it takes only top 15% performers where performace had mean 70 score and standard deviation of 8 is found being 78.32 approx.

How to get the z scores?

If we've got a normal distribution, then we can convert it to standard normal distribution and its values will give us the z score.

If we have

[tex]X \sim N(\mu, \sigma)[/tex]

(X is following normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex] )

then it can be converted to standard normal distribution as

[tex]Z = \dfrac{X - \mu}{\sigma}, \\\\Z \sim N(0,1)[/tex]

(Know the fact that in continuous distribution, probability of a single point is 0, so we can write

[tex]P(Z \leq z) = P(Z < z) )[/tex]

Also, know that if we look for Z = z in z tables, the p value we get is

[tex]P(Z \leq z) = \rm p \: value[/tex]

For this case, suppose that:

X = the score a student gets in the considered university's entrance exam.

Then, we have:

[tex]X \sim N(\mu = 70, \sigma = 8)[/tex]

Let X = x be the score such that scores bigger than x is 15% of all the scores applicants get.

That means, P(X > x) = 15% of the total area the distribution of X have under its normal distribution. Or, we can say that there is 15% chance of getting scores above X = x

Now, we can rewrite this statement as:

[tex]1 - P(X \leq x) = 0.15[/tex]

Converting X to Z (standard normal variate), we get:

[tex]1 - P(X \leq x ) = 0.15\\\\1 - P\left(Z \leq z = \dfrac{x - 70}{8} \right) =0.15\\\\P(Z \leq z = (x-70)/8) = 0.85[/tex]

The value Z = z for which the p-value is approx 0.85 is found from the z-tables as:

Thus, we get:

[tex]z = \dfrac{x-70}{8}\\x = 8z + 70\\x \approx 8 \times 1.04 + 70 = 78.32[/tex]

Thus, the minimum score needed to be accepted in the university when it takes only top 15% performers where performace had mean 70 score and standard deviation of 8 is found being 78.32 approx.

Learn more about z-score here:

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Maggie made 3 withdrawals of $30 each from her bank account. She also wrote a check for $50. What change did these transactions have on her bank account balance? F $80 g-$80 H $140 j-$140​

Answers

Answer: J -$140

Explanation:

Withdrawals = negative ( -)
Deposits = positive (+)

She made 3 withdrawals. EACH one was $30.

$30 x 3 = $90 withdrawn

Then wrote a check for $50 (this is another withdrawal)

$90 + $50 = $140 withdrawn

The change in her balance is -$140

There is a bag filled with 4 blue and 5 red marbles.
A marble is taken at random from the bag, the colour is noted and then it is replaced.
Another marble is taken at random.
What is the probability of getting 2 that are different in colour?

Answers

Answer:

50% chance

Step-by-step explanation:

obviously

Someone HELP!!!!!!!!!!!

Answers

Answer:

I got x= 3

[tex]m < DBE = 64\\m < CBE =26[/tex]

Step-by-step explanation:

since x= 3,

I put 3 in the equations,

first equation,

17x + 13

17*3 + 13

=64

second equation,

32-2x

32 - 2*3

=26

help w this !!!!!!!!!!

Answers

Answer:

1.  BC = 24

  Perimeter of ABCD = 96

3. PT = 9

   ST = 7

Step-by-step explanation:

Question 1

All the side lengths of a rhombus are equal.

Therefore, BC = AB = 24

So the perimeter of ABCD = 24 × 4 = 96

Question 3

The diagonals of a rhombus bisect each other at right angles.

Bisect means to divide into two equal parts.

Therefore, PT = TR  so  PT = PR ÷ 2

As PR = 18  then  PT = 18 ÷ 2 = 9

QT = ST  so  ST = QS ÷ 2

As QS = 14  then  ST = 14 ÷ 2 = 7

Question 5 of 5
Roshaun kept track of the number of hours that he spent
playing his saxophone each week for several weeks. He
spent 8 25 10 and 5 hours.
What is the range of the data set?
O A 10 hours
B. Shours
C. 5 hours
OD 6 hours
SUBMIT
PREVIOUS

Answers

D 6 hours hope this helps

solve and check
x=2x-4/3

Answers

Answer:

it = -1

Step-by-step explanation:

-1

5+2√3 / 7+4√3 = a-6√3
please answer this

Answers

[tex]~~~~\dfrac{5+2\sqrt 3}{7+4\sqrt 3} = a- 6\sqrt 3\\\\\\\implies a= \dfrac{5+2\sqrt 3}{7+4\sqrt 3}+6\sqrt3 \\\\\\\implies a=\dfrac{\left(5+2\sqrt 3 \right) \left( 7-4\sqrt 3\right)}{\left(7+4\sqrt 3 \right) \left(7-4\sqrt 3 \right)}+6\sqrt 3\\\\\\\implies a = \dfrac{35-20\sqrt 3+14\sqrt 3-24}{7^2 - \left(4\sqrt 3 \right)^2}+6\sqrt 3\\\\\\\implies a=\dfrac{11-6\sqrt 3}{49-48}+6\sqrt 3\\\\\\\implies a=11-6\sqrt 3+6\sqrt 3\\\\\\\implies a = 11[/tex]

kate has the following scores on her math test this quarter 89,79,83, and 94.if she want an average of 85 ,what musther score be on the 5th test

Answers

She must score an 80.

85*5= 425
425-89-79-83-94= 80

Who’s in 10th grade and who’s in 9th? I’m doing a poll for math?

Answers

Answer:

I'm in 10th

hope that would help, lol

The bowling team at Lincoln High School must choose a president, vice president, and secretary. If the team has 20 members, how many ways could the officers be chosen?

Answers

Using the permutation formula, as the order is important, it is found that the officers can be chosen in 6840 ways.

Each "position" is a different role(president, vice president and secretary), hence the order is important.

What is the permutation formula?

The number of possible permutations of x elements from a set of n elements is given by:

[tex]P_{(n,x)} = \frac{n!}{(n-x)!}[/tex]

In this problem, 3 people will be chosen from a set of 20, hence:

[tex]P_{20,3} = \frac{20!}{17!} = 6840[/tex]

The officers can be chosen in 6840 ways.

More can be learned about the permutation formula at https://brainly.com/question/25925367

In order to better decide how to market a new line of clothing, mary is researching the demographics of the customers of a certain clothing store. she counted the number of customers who visited the store over the course of a month, and found out how many of the customers were high school students. her collected data is in the table below. week 1 2 3 4 customers 2,848 3,141 3,861 3,911 students 2,033 1,937 2,076 1,721 mary predicts that the store will see 4,238 customers next week. approximately how many high school students should the store expect next week? a. 1,865 b. 2,392 c. 2,446 d. 3,025

Answers

Number of high school students which should the store expect next week, Mary predicts that the store will see 4,238 customers next week is 2392.

What is expected value?

The expected value is the long term average of the data or the mean of the data.

In order to better decide how to market a new line of clothing, Mary is researching the demographics of the customers of a certain clothing store.

She counted the number of customers who visited the store over the course of a month, and found out how many of the customers were high school students.

Her collected data is in the table below.

Week                1          2         3            4 Customers    2,848    3,141    3,861    3,911 Students       2,033    1,937   2,076    1,721

Mary predicts that the store will see 4,238 customers next week.

From using the long term mean value calculator for the provided data, the predicted value of the next week we get as 2392.

Hence, the number of high school students which should the store expect next week, Mary predicts that the store will see 4,238 customers next week is 2392.

Learn more about the expected value here;

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Answer:

B

Step-by-step explanation:

B because the of the is the cool make of giga chad braincells :)

URGENT URGENT URGENT URGENT URGENT URGENT URGENT URGENT URGENT!!!!!!!
Plans for a new apartment complex call for buildings directly across the fence from each other to be congruent. This computer printout shows Building A.

if the vertices of Building B are located at (2x1,2y1),(2x2,2y2),(2x3,2y3), and (2x4,2y4), will building B be congruent to Building A?

Answers

Because the transformation is a dilation, we conclude that the buildings are not congruent.

Is building B congruent to building A?

You need to remember that if the transformation applied to A is a dilation or a contraction, then the figures will not be congruent.

Where for a point (x, y), a dilation of scale factor k is written as:

(kx, ky).

The vertices of building A are:

(x₁, y₁), (x₂, y₂), (x₃, y₃), and (x₄, y₄).

And the vertices of building B are a dilation of the above ones, such that the dilation has a scale factor k = 2.

(2x₁, 2y₁), (2x₂, 2y₂), (2x₃, 2y₃), and (2x₄, 2y₄).

So, because there is a dilation, building B is not congruent to building A.

If you want to learn more about transformations, you can read:

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I DONT DO MATHHHHH?????

Answers

I haven’t learned anything this year either soooo….
Other Questions
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Write a brief paragraph stating which civilization you think is the best and explain why you selected it.Part DSome advertisements may state opinions and some may make exaggerated claims. For the purpose of this activity, you will create an advertisement based on real facts. So make sure that your research is strong and well supported. Conduct further research if needed on the civilization you chose. Form at least three arguments that support the civilization as the "best." Make sure that you provide at least two sources to support your argument.Part ENext, you will make a positive factual statement about your civilization. You should use this statement in your final advertisement. Your statement can be a comparison to some other civilization. Whatever you do, make sure that your statement is based on facts.Part FIn this part of the activity, you will select two images that will be part of your ad. Choose images that will capture the audience's attention. For example, you might use a portrait of a famous personality, an image of a building or object, or even a map. Click the Insert Image button to upload each image in the answer space.Part GWrite a brief, one-paragraph summary describing the achievements of the civilization you selected. Use an exaggerated, enticing style in your writing. Make sure that its interesting and will grab the readers attention.Part HWrite two testimonials for your civilization from real or fictional people.Part IDraft your advertisement using the images and text you created in the previous tasks. Select a font that is attractive, unusual, or bold. Make the text colorful and use different sizes. Your title text should grab your readers attention. Submit your completed advertisement to your teacher along with this activity.Part JWith advertisements there is always the possibility that someone might challenge your claims. They might report you as advertising false information. 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