Which of the following is a rational number?

square root of 79, square root of 80, square root of 81, square root of 82

Answers

Answer 1
The square root of 81 is rational since it equals 9. Rational numbers can be expressed as a fraction of two integers. The fraction here would be 9/1, hence it is rational. The others are not perfect squares and can’t be expressed as a fraction of two integers.

Related Questions

If the input is 15, then what is the output for 3x+5?

Answers

Answer:

Example: for input output tables input is 1,2,3,4,5,6 and output is 5,7,9,11,13,15 what is the input output rule? mathematics. What is the output for the function y = -4x - 3, when the input is 2? Math. Hey, I need your help! I have an input output table that I need the function rule for.

Step-by-step explanation:

help please pleassse​

Answers

Answer:

[tex]n=\frac{8}{3}[/tex]  or  [tex]n = 2\frac{2}{3}[/tex]

Step-by-step explanation:

Multiply both sides of the equation by [tex]\frac{10}{3}[/tex]

[tex](\frac{10}{3}) (\frac{3}{10})*n= (\frac{10}{3})(\frac{4}{5})[/tex]

Simplify both sides of the equation.

[tex]n=\frac{8}{3}[/tex] or [tex]n = 2\frac{2}{3}[/tex]

hope this helps :)

Create and manipulate a data frame.
i) Create a `data.frame` named `my.trees` that has the following columns: - `
Girth = c(10.3, 10.6, 10.8, 13.5, 13.7, 13.8, 14.0)` - `
Height = c(70, 65, 63, 72, 81, 83, 66)` - `
Volume = c(10.3, 10.3, 10.2, 16.4, 18.8, 19.7, 15.6)`
ii) Extract the second observational unit.
iii) Extract the `Height` column referring to it by name.
iv) Print out a data frame of all the observations except for the firt observation.

Answers

iii). Extract the height column referring to it by name

A scientist wants to predict the number of nitrates in the river. Which sample is better for making this prediction?
Sample A: A random sample of 5 gallons of water from one location in the river
Sample B: A random sample of 5 gallons of water from five different locations in the river

Answers

Answer:

Sample B: A random sample of 5 gallons of water from five different locations in the river

Step-by-step explanation:

if 55% is 70.4 so what is hundred percent​

Answers

Answer:

55%=70.4

1%=70.4/55= 1.28

100%=1.28into 100 = 128

17
Convert into a mixed number.
9

Answers

Answer: [tex]1\frac{8}{9}[/tex]

Step-by-step explanation:

i'm assuming the fraction is [tex]\frac{17}{9}[/tex] correct? First you would have to find out how many times 9 can be multiplied to get as close to 17. Since it can only go one time, subtract 9 from 17, then add the one next to it which would get you the mixed number of  [tex]1\frac{8}{9}[/tex]

A line with a slope of 0.20 passes through
the point (1.25, -17.5). What is the
equation of the line in slope-intercept form?

Plss help ASAP I’ll give anything

Answers

Answer:

y=0.2x-20

Step-by-step explanation:

1) the common view of the line in the slope-intercept form is:

y=s*x+i, where s - the value of the slope (it is 0.2 according the condition), i - the value of intercept (to be calculated);

y=0.2*x+i.

2) if to substitute the given coordinates (1.25;-17.5) into the common view, then:

-17.5=1.25*0.2+i;

it is possible to calculate the value of 'i': i= -20.

3) if the slope=0.2, the intercept= -20, then the required equation of the line is:

y=0.2x-20.

PLEASE HELP I WILL GIVE BRAINLIEST!!!!!!!!!!!



Abby was decorating her room. She arranged 56 picture tiles on a wall in the shape of a rectangle. How many rows of tiles could she have on the wall?

Answers

Answer:

14

Step-by-step explanation:

A rectangle has four sides so all you have to do is 56÷4

Answer:

14

Step-by-step explanation:

I was Slightly confused But with the given information

Divide 56 and 4...

put them in order 0.25,1.5 and 2.5

Answers

In order from least to greatest it is 0.25, 1.5, 2.5
In order greatest to least it’s 2.5, 1.5, 0.25
I hope this helps!

A coordinate plane.

Which statements are true? Check all that apply.
The line that goes through the points (3,7) and (–2,7) is a horizontal line.
The equation x = –8 is a vertical line that goes through the point (–8,3).
The line that goes through the points (0,5) and (0,–7) is a vertical line.
The points on a horizontal line have the same x-coordinate.

Answers

Answer:

A  , B, and C

Step-by-step explanation:

i just did it

In a manufacturing plant, a work center is a specific production facility that consists of one or more people and or machines and is treated as one unit for the purposes of capacity requirements planning and job scheduling. If the jobs arriveat a particular work center at a faster rate than they depart, the work center impedes the overall production process and is referred to as a bottleneck. This sample was collected by an operations manager for use in investigating a potential bottleneck work center. There are 315 hours in the work week when items can come into the work center. The manager selects every 15th hour and counts how many items come into the work center during that hour. What type of sample is this?

Answers

Answer:

Systematic sampling

Step-by-step explanation:

Systematic sampling is a sampling technique in which the first sample selection is a random selection but other subsequent selection of samples occurs within a fixed sampling interval. The determination of this interval is based on the division of the population size by sample size.

Let assume that, our first random selection is [tex]i^{th}[/tex] unit, then the other fixed selection occurs at a fixed sampling interval of k.

Therefore, using systematic sampling method, the sampling unit will be every [tex]k^{th}[/tex] unit after the [tex]i^{th}[/tex] unit.

From  the question given:

We notice that the manager selects a sampling unit every 15th  hour. This tells us that he is taking the sampling unit by the usage of a fixed time interval.

Hence, this appears to be a systematic sample.

What is the value of x in the equation below?

1/3 (12 x - 24) = 16
2
6
8
10

Answers

Answer:

6

Step-by-step explanation:

one third of 12 is 4

4x

one third of 24 us 8

4x-8=16

4x= 24

x=6

Which question below is a Statistical Question? * How much did the first computer cost? How much does a computer weigh? What year were you born? What kind of computer do people prefer?

Answers

it cost 250$. it weighed 50 tons. i was born 1997. people prefer apple

Which ratio expresses the scale used to create this drawing? The camping site has dimensions of 15 meters by 60 meters.

Answers

Answer:

Answer is d on edge 2021

Step-by-step explanation:

Answer:

it is d :)

Step-by-step explanation:

A basket contains 6 apples and 8 peaches. You grab a piece of fruit at random. What is the probability you first grab an apple and eat it, and
then you grab another apple?

Answers

6/14 x 5/13 = 15/91
C

(98,-16) and (2,62) slope

Answers

Answer:

I love algebra anyways

The ans is in the picture with the  steps how i got it

(hope this helps can i plz have brainlist :D hehe)

Step-by-step explanation:

6. Find the ICM of 60 and 400

Answers

Answer: it's 1200

Step-by-step explanation: please give me brainliest

400x3=1200

60x20=1200

The LCM of 60 and 400 is 1200. The multiples of 60 are 60, 120, 180, 240, 300, 360, 420, 480, 540, 600, 660, 720, 780, 840, 900, 960, 1020, 1080, 1140, 1200, and more.

The multiples of 400 are 40, 80, 120, 160, 240, 280, 320, 360, 400, 440, 480, 520, 560, 600, 640, 680, 720, 760, 800, 840, 880, 920, 960, 1000, 1040, 1080, 1120, 1160, 1200 and so on and so forth.

Therefore, the LCM is 1200.

Determine whether the ratios are equivalent 6 : 10 and 12 : 20 ?

Answers

Answer:

Yes, they are equivalent because 12 is divisible by 6 two times and 20 is divisible by ten two times.

How to subtract -2 1/6-2/3

Answers

Answer:

Conversion a mixed number 2 1/6

to a improper fraction: 2 1/6 = 2 1/6

= 2 · 6 + 1/6

= 12 + 1/6

= 13/6

Multiply the whole number 2 by the denominator 6. Whole number 2 equally 2 * 6/6 = 12/6

To find new numerator: 13/6 - 2/3= 13/6 - 2 · 2/ 3 · 2 = 13/6- 4/6= 13 - 4/6= 9/6= 3 · 3/3 · 2= 3/2

Add the answer from previous step 12 to the numerator 1. New numerator is 12 + 1 = 13

Write a previous answer (new numerator 13) over the denominator 6.

Two and one sixth is thirteen sixths

For adding, subtracting, and comparing fractions, it is suitable to adjust both fractions to a common (equal, identical) denominator. The common denominator you can calculate as the least common multiple of the both denominators - LCM(6, 3) = 6. In practice, it is enough to find the common denominator (not necessarily the lowest) by multiplying the denominators: 6 × 3 = 18. In the next intermediate step , cancel by a common factor of 3 gives 3/2

.

In words - thirteen sixths minus two thirds = three halfs.

I'm not sure if this is right but if it's not I did math for nothing-.

Suppose we want to choose 5 letters, without replacement, from 18 distinct letters

Answers

Answer:

17C5 = [17!/(17-5)!]/5! = 6188

Step-by-step explanation:

17P5 = 17!/(17-5)! = 17*16*15*14*13 = 742,560

Point A is located at (-3, 4) and is translated 3 units down. What are the coordinates of point A'?

(-6, 4)
(-3, 7)
(0, 4)
(-3, 1)

Answers

Answer:

(-3,1)

Step-by-step explanation:

(-3,4-3) = (-3,1)

26 divided by 1690 help please once again

Answers

Answer:

[tex]26 \div 1690 \\ = 0.0154[/tex]

A side of the triangle below has been extended to form an exterior angle of 159° find the value of X

Answers

Answer:

X=47

Step-by-step explanation:

exterior angle property

159= X+112

X=159-112

x=47

Answer:

21

Step-by-step explanation:

x+159= 180

find the 7th term in the sequence?
1/3,1,3,9

Answers

Answer:

27 64 213 1004

Step-by-step explanation:

its 3 by 3 so its 213

What is the sum of $5.50, $13, and $6.50?
O A. $12.13
B. $13.30
C. $24
D. $24.50
E. $25

Answers

The answer is $25. Your going to add 6.50 and 5.50 Bc they have decimals. Then that sums up to $12.00. And $12.00 plus $13.00 is $25.00.

Subtract m + 8 ​​from​ 5m + 11.

???

Answers

Answer:

=−4m+19

Step-by-step explanation:

Answer:

I think it might be 4m + 19

8 divided by 1/12 plzzz thanks

Answers

Answer:

96

Step-by-step explanation:

8 divided by 1/12

8/1 divided by 1/12

8/1 x 12/1

96

8 divided by 1/2 is 16

A bike shop charges 8.50 per hour to rent a bike plus a flat rate of 5 for a helmet. For how many hours did Lucas rent a bike if he paid 56

Answers

Answer:

6 hours

Step-by-step explanation:

x number of hours

8.50(x)+5=56

8.50x=51

x= 6 hours

Answer:

476

Step-by-step explanation:

Which line is parallel to the graph of the line y=-2/3x-5?
y=-3/2x-1
y=-2/3x-7
y=2/3x+2
y=3/2x+6

Answers

Y=-2/3x-7 all we need is the same slope of -2/3x for the two lines to be parallel

what is -6(a + 8) simplified?

Answers

Answer:

-6a-48

Step-by-step explanation:

Answer:

-6a - 48

Step-by-step explanation:

distribute

-6 x a = -6a

-6 x 8 = -48

put the answer together

-6a - 48

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