4.5+n is it rational or irrational

Answers

Answer 1

Answer:

4.5 is a rational number, as it can be represented as 9/2. Many important numbers in mathematics, however, are irrational, and cannot be written as ratios.


Related Questions

PLEASE HELP IM BEGGIN YOU .

What is the slope of the line?

-2

-1/2

2

1/2

Answers

Answer:

1/2

Step-by-step explanation:

Pick two points on the line

(0,-4) and (2,-3)

Using the slope formula

m = (y2-y1)/(x2-x1)

    = (-3 - -4)/(2 -0)

    (-3+4)/(2-0)

    1/2

8/3+(-9/4)=? ......................

Answers

Answer:

5/12

Step-by-step explanation:

make common denominater which is twelve 8 becomes 24 -9 becomes -21

Answer:

5/12

because we first need to find the equal denominator

the difference of the place values of the digit 7 in 73,789​

Answers

Answer:

tens of thousand vs hundred

Step-by-step explanation:

calcula la longitud de la variable "x"​​

Answers

Answer:

La longitud de [tex]x[/tex] es [tex]5\sqrt{2}[/tex] unidades.

Step-by-step explanation:

La figura es un cuadrado atravesado por una diagonal, significando que existen dos triángulos rectángulos, cuyos ángulos interiores son 45°, 45° y 90°, respectivamente. Por Geometría Euclideana, tenemos que la longitud de la hipotenusa es igual a [tex]\sqrt{2}[/tex] veces la longitud de cualquiera de sus catetos:

[tex]x = \frac{10}{\sqrt{2}}[/tex]

[tex]x = 5\sqrt{2}[/tex]

La longitud de [tex]x[/tex] es [tex]5\sqrt{2}[/tex] unidades.

By what percent will a fraction increase if its numerator is increased by 60% and its denominator is decreased by 20%?

Answers

Answer:

133.33%

Step-by-step explanation:

x/y * k = 1.6x / 1.2y

k = (1.6x / 1.2y) / (x/y)

k = 1.6/1.2

k = 4/3 = 1.3333 = 133.33%

does 32, 57, 65 form a right triangle?

Answers

Answer:

No

Step-by-step explanation:

In order to form a right triangle, you would need one of the angles to be 90 degrees. Plus all the angles don't equal 180 degrees (the angles of a triangle should add up to 180)

Nope.

A right angle triangle is form only when one given angle is 90 degree.

:)) ur welcome

Which are perfect squares? Check all that apply.
72
36
8
16
81
64
48

Answers

72,36,8,16,64,48

Step-by-step explanation:

these are right answers am'l right??

Answer:

36, 16, 81, and 64 are all of your perfect squares.

Step-by-step explanation:

Had the question got it right :)

Can someone help
Me solve the rest of this please

Answers

Answer:

Step-by-step explanation:

Classify the following triangle. Check all that apply

Answers

Step-by-step explanation:

it's a right angled triangle

it's also a scalene triangle because not all sides are equal

HELP FAST! well give Brainliest

Mark is buying wings and hot dogs for a party. One package of wings (2) costs $5 and hot dogs (y) costs $3 per pound. He must spend less than $40. Write an inequality to represent the cost of Mark's food for the party.​

Answers

Answer:

2(5)+3y<40

yes that what I know

Which number produces a rational number when multiplied by 1/5?


square root 11, -1.41421356,3.14,-2/3

Answers

Answer:

-2/3

Step-by-step explanation:

Answer:

-2/3

Step-by-step explanation:

Y E S

I reallllyy neeeeedd helpppp dont be capping put the right answer

Answers

I believe it's A, C and D.

8. An car can hold 8 1/4 gallons of fuel. It contains 4 5/6 gallons of fuel. How
much more fuel is needed to fill the car?

Answers

Answer:

3 5/12

Step-by-step explanation:

Answer:

41/12 gallons

= 3 5/12 gallons

Step-by-step explanation:

Since it can hold 8 1/4 gallons and currently has 4 5/6 gallons, you subtract.

You need to get the common denominator to subtract cleanly so we can turn the fractions into improper fractions.

8 1/4 = 33/4 because 8 is equal to 8 full 4/4ths so multiply 8 by 4 and add 1 for the remaining 1/4.

Then 4 5/6 becomes 29/6 with the same concept earlier.

So we can change the denominator to 12 on both fractions (33/4 and 29/6) so we can subtract.

33/4 becomes 99/12 because they are still equivalent, it's just that you multiplied the top and bottom by the same number.

29/6 becomes 58/12 because we multiplied the fraction by 2/2.

Those two new fractions stated previously are the same as the original because we multiplied them by 1/1, because 3/3 and 2/2 is still equal to 1/1, and the new fractions can be simplified down to the original.

Since we have 99/12 and 58/12, we can subtract cleanly into

99 - 58 = 41

So the answer is 41/12

A town has a population of 5600 in 2014. If the towns population increases at an annual rate of 1.8%, determine the towns population in 2020. *

Answers

Answer:

In 2020 the population will be 6,233.

Step-by-step explanation:

Giving the following information:

Present value (PV)= 5,600

Growth rate (g)= 1.8%

Number of periods= 6 years

To calculate the population in 2020, we need to use the following formula:

FV= PV*(1 + g)^n

FV= 5,600*(1.018^6)

FV= 6,232.67 = 6,233

In 2020 the population will be 6,233.

The faces on a number cube are labled 1,2,2,3,4, and 5the number cube is rolled 114 times how many times would you expect the number 2 to apper

Answers

Given:

The faces on a number cube are labeled 1,2,2,3,4, and 5.

The number cube is rolled 114 times.

To find:

How many times would you expect the number 2 to appear?

Solution:

We have,

Total outcomes = 1,2,2,3,4, and 5.

Number of total outcomes = 6

Favorable outcomes = 2 and 2

Number of favorable outcomes = 2

The probability of getting 2 is:

[tex]P(2)=\dfrac{\text{Number of favorable outcomes}}{\text{Number of total outcomes}}[/tex]

[tex]P(2)=\dfrac{2}{6}[/tex]

[tex]P(2)=\dfrac{1}{3}[/tex]

Now, the expected number of times when 2 to appear is:

[tex]E(x)=114\times P(2)[/tex]

[tex]E(x)=114\times \dfrac{1}{3}[/tex]

[tex]E(x)=38[/tex]

Therefore, the expected number of times is 38.

HELP ME AGAIN PLEASE I BEG

Answers

Answer:

Both of your answers are correct

Step-by-step explanation:

Answer:

d

e

Step-by-step explanation:

2x ≤ 5x - 15

step 1 subtract 5x from each side

2x - 5x = -3x

5x - 5x cancels out

we now have -3x ≤ -15

step 2 divide each side by -3

-3x / -3 = x

-15 / -3 = 5

IMPORTANT NOTE ( when you divide by a negative number you must flip the sign )

We would be left with x ≥ 5

now let's Plug in 10

2(10) ≤ 5(10) - 15

2(10) = 20

20 ≤ 5(10) - 15

5(10) = 50

20 ≤ 50 - 15

50 - 15 = 35

20 ≤ 35 ✓

If U = {1, 3, 5, 7, 9, 11, 13}, then which of the following are subsets of U.

A = {0}
B = {2, 4}
C = {1, 9, 5, 13}
D = {2, 3, 4, 5}

Answers

Answer:

C

Step-by-step explanation:

It is C because members in the set C can be found in the universal set (U)

PLEASE HELP WILL GIVE brAINLIEST
Santino is renting a canoe from a local shop that charges a $10 fee, plus an hourly rate of $7.50. For how long can Santino rent a canoe if he pays a total of $70?

Answers

the answer is 2343-
8 hours. 70-10 is 60. 60/7.5 is 8.

Dennis walks his dog 2 times a day. Each walk is 1 mile in length. How
far will he have walked his dog in a week?

Answers

The answer would be 14 miles

How are differences between the sample mean and the population mean explained when the result isn't statistically significant?

Answers

Answer and explanation:

The standard error is used to measure the difference between the sample mean and the population mean. It uses standard deviation to measure the level of deviation of the sample mean from the population mean. In other words, the accuracy of the sample mean by way of representing the mean of the population is measured using the standard error. If there is significant difference then standard error is bigger usually non-zero while it is less significant with smaller standard error.

An angle measures 52° less than the measure of its supplementary angle. What is the measure of each angle?

Answers

Answer:

64º and 116º

Step-by-step explanation:

x  + (x - 52) = 1080

2x - 52 = 180

2x = 232

x = 116º

x - 52 = 64º

Andrew is two years older than Beatrice, and Chris is three years younger than Beatrice. The product of Andrew's age and Chris' age is 66. How old is Beatrice?

Answers

Answer:

9

Step-by-step explanation:

A = B + 2

C = B - 3

A x C = 66

A = Andrew

C = Chris

B = Beatrice

Multiply A and c together

(B + 2) x (b - 3)

b^2 - 3b + 2b - 6

b^2 -b - 6 = 66

b^2 - b - 72 = 0

factors of -72b^2 that add up to - b are -9b + 8b

b^2 + 8b -9b - 72

b (b + 8) -9(b + 8)

b = 9 or - 8

b = 9

[Q] Mike and Jeanie played 38 games of checkers. Mike won 6 more games than Jeanie. To find out how many games Jeanie won a student used this equation.
M + J = 38
In this equation: M = number of games Mike won and J = number of games Jeanie won Which other equation would help the student to solve this problem?
(A) 38 - 6 = J
(B) M - J = 6
(C) 38 + 6 = J
(D) J - M = 6
(E) M + J = 6

Answers

Answer:

(B) M - J = 6

Step-by-step explanation:

Here we have the variables:

M = number of games that Mike won.

J = number of games that Jeanie won.

And we know that there is a total of 38 games played, then if a game can not end in a draw, we have the equation:

M + J = 38

Now we want to find the other equation needed to solve this problem:

We also know that Mike won 6 more games than Jeanie, this is written as:

M = J + 6

We can subtract J in both sides to get:

M - J = 6

This is the equation from option B, so we can conclude that the correct option is B.

PLEASE I REALLY NEED HELP I ONLY HAVE AN HOUR LEFT TO FIINISH THIS What is the relationship or pattern you see between the month and the daylight hours?

Answers

Answer:

The relationship or pattern between the month and the daylight hours is that the winter months tend to have fewer daylight hours while the summer months tend to have more daylight hours.

Which of the following theorems verifies that XYZ - UWV

A. HL
B. AA
C. LL
D. HA

Answers

Given:

The figure of two triangle XYZ and UWV.

To find:

The theorem that is used to verify [tex]\Delta XYZ\sim \Delta UWV[/tex].

Solution:

In triangle XYZ,

[tex]m\angle X+m\angle Y+m\angle Z=180^\circ[/tex]        (Angle sum property)

[tex]70^\circ+90^\circ+m\angle Z=180^\circ[/tex]

[tex]160^\circ+m\angle Z=180^\circ[/tex]

[tex]m\angle Z=180^\circ-160^\circ[/tex]

[tex]m\angle Z=20^\circ[/tex]

In triangle XYZ and triangle UWV,

[tex]m\angle Y\cong m\angle W[/tex]                  (Right angles)

[tex]m\angle Z\cong m\angle V[/tex]                  (Equal measures)

Two angles of one triangle are congruent to corresponding angles of another triangle. So, the triangles are similar by AA property of similarity.

[tex]\Delta XYZ\sim \Delta UWV[/tex]           (AA similarity theorem)

Therefore, the correct option is B.

solve for q tysm:)))​

Answers

Question

Solve for q

-----------------

[tex](8q-5)^o+81=180^o[/tex]

[tex]8q-5+81=180[/tex]

[tex]8q+76=180[/tex]

[tex]8q=180-76[/tex]

[tex]8y=104[/tex]

[tex]q=13[/tex]

---------------

Answer[tex]q=13[/tex]-----------------------hope it helps...have a great day!!

James is using cement to make a new sidewalk and new steps.
Part A
He will make a new rectangular sidewalk that is 8 feet long, 4 feet wide, and 0.25 foot thick.
What is the volume, in cubic feet, of the cement used to make the sidewalk? Show or explain all of the steps you used to determine your answer.

Part B
This diagram shows James’s design for the steps. The height of each step will be 6 inches. All angles in the diagram are right angles.
I need it now please!

Answers

The volume, of the cement used to make the sidewalk is 8 ft³

What is volume?

Volume is defined as the space occupied within the boundaries of an object in three-dimensional space. It is also known as the capacity of the object.

Given that, James is using cement to make a new sidewalk and new steps,

He will make a new rectangular sidewalk that is 8 feet long, 4 feet wide, and 0.25 foot thick.

Volume = length x width x height

Volume = 8 x 4 x 0.25 = 8 ft³

Hence, the volume, of the cement used to make the sidewalk is 8 ft³

Learn more about volumes, click;

https://brainly.com/question/1578538

#SPJ1

The First Super Bowl was in what Year-
A. 1957
B. 1967
C. 1969
D. 2000

Answers

Answer:

B, 1967.

Step-by-step explanation:

Hope this helps.

Find the area of the sector. Use 3.14 for pl and round your
answer to the nearest tenth if necessary.
19 m

Answers

I am a teacher for all subjects so the answer is 201 m

4. A rental car costs a one time fee of $180 and then an additional $65 for each day it is
rented. If the Neddles family's total bill was $520, how many days did they rent the car?

Answers

Answer:

5.23 =d

Step-by-step explanation:

cost = fee + daily charge*days

520 = 180+ 65d

Subtract 180

520 -180 = 180+65f-180

340 = 65d

Divide by 65

340/65 = 65d/65

5.23 =d

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