Mathematics High School

Which list contains only rational numbers?

Answers

Answer 1

Answer: B

Step-by-step explanation:

Fractions, decimals, whole numbers, zero, and negatives. DOES NOT INCLUDE REPEATING DECIMALS.

Related Questions

How many times larger is 5 * 10 ^ 2 5 * 10 ^ -2

Answers

Answer:

Step-by-step explanation:

Substitute the given value into the function and evaluate.

5 ⋅ 10 ^2 = 500

5 ⋅ 10^ − 2 = 0.05

Hope This Helps!

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It Helps A lot! ;)

There are 120 people at a party 1/3 of the peopl leave the party. Work out the number of people still at the party

Answers

40 people left because 120 divided by 3 is 40

Answer:

Step-by-step explanation:

how i did it probably isn't normal but first i did 1/3 of 100 and that's 33.33

then i did 1/3 of 20 and that's 6.66 then you just add them together

33.33+6.66 and that's 39.99

then just round up

PLEASE HELP WILL MARK BRAINLY

Rewrite 2/5 and 3/4 so that they have common denominators. Then add the fractions and simplify the sum

Answers

Answer:

Exact Form:

23/20

Decimal Form:

1.15

Mixed Number Form:

1 3/20

The soccer team is
conducting a fundraiser selling long-sleeved T-shirts for $14 and short-sleeved T-shirts for $10.
So far the team has sold less than $200 worth of the two types of T-shirts. Which inequality best represents x, the
number of long-sleeved T-shirts they have sold, and y, the number of short-sleeved T-shirts they have sold?
O x + y < 200
O x + y > 200
O 14x + 10y > 200
O 14x + 10y < 200

Answers

Answer

it’s c

Step-by-step explanation:

you fool I have been trained in your Jedi arts by count dooku

I got a hundo on the test

Inequalities help us to compare two unequal expressions. The inequality that best the T-shirts they have sold is 14x+10y<200.

What are inequalities?

Inequalities help us to compare two unequal expressions. Also, it helps us to compare the non-equal expressions so that an equation can be formed.

It is mostly denoted by the symbol <, >, ≤, and ≥.

Given the cost of long-sleeved T-shirts is $14, while the short-sleeved T-shirts cost $10. Also, it is given the number of long-sleeved T-shirts is represented by x, while the number of short-sleeved T-shirts is represented by y. Therefore,

14x + 10y

Since the sales done is less than $200, therefore, the inequality that best the T-shirts they have sold is,

14x + 10y < 200

Hence, the inequality that best the T-shirts they have sold is 14x+10y<200.

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10 POINTS Solve for y: 5y + 2y -4y = 30

Answers

Answer:

Step-by-step explanation:

5y + 2y -4y = 30

To solve first combine like terms

5y+2y-4y=3y

Then isolate your variable, do this by dividing both sides by 3.

3y=30

3y/3=30/3

Finally, simplify

y=10

The answer to this equation is 10

Jada is putting a border around her rectangular garden. The garden is 12.63 meters long and 3.28 wide. Jada estimates the perimeter of her garden by rounding the length and width to the nearest whole number. What equation shows her estimate?

Answers

Answer: 12.63 rounded to 13 and 3.28 rounded to 3 the perimeter is 32

Step-by-step explanation: If you need any more help Im

usually available between 9a.m - 3:50 pm

Answer

Part A: C

Part B: B

Part C: 15.91

Step-by-step explanation:

first round the 2 numbers by the tenths. Then round the numbers by ones(whohle number). After that, since ther are four sides we do 12.63 + 3.28 + 12.63 + 3.28 which equals to 15.91.

Determine whether the graph is the graph of a function. (5 points)

Answers

Answer: It is not a function

Step-by-step explanation: It does not pass the vertical line test

PLEASE HELP! This is the only question I don’t get about functions.

Answers

63 chairs cost 2,268

what is the slope of the line?

Answers

Answer:

I am pretty sure it's -3/1, correct me if I am wrong!

Step-by-step explanation:

Answer:

-3/1

Step-by-step explanation

You see where the line meets the corners of the squares on the graph. The equation for slope is m=rise over run. You rise three squares, and go to the right one.

Please help!! I chose an answer but I’m not sure! DUE IN 3 MINS

Answers

Answer:

Its c

Step-by-step explanation:

Because the f(x)= 0 is on the x line

and -2, 1, or 3 only

What is the value of min the figure below? In this diagram, AABD ABCD.
8
m
C
A. 136
B. 572
C. 32
Ο Ο Ο
D. V632
E. 147
o
F. 274
HELP

Answers

Answer: Choice A) sqrt(136)

This is equivalent to 2*sqrt(34)

=======================================================

Explanation:

First let's find BD

The three triangles are similar, allowing for the proportion to be set up

AD/BD = BD/DC

9/x = x/8

9*8 = x*x

x^2 = 72

x = sqrt(72)

BD = sqrt(72)

Now we can use the pythagorean theorem. Focus on triangle BDC.

The legs are BD = sqrt(72) and DC = 8. Let's find the hypotenuse

(BD)^2 + (DC)^2 = (BC)^2

(sqrt(72))^2 + (8)^2 = m^2

72 + 64 = m^2

136 = m^2

m^2 = 136

m = sqrt(136)

We can simplify this but your teacher has chosen not to. If you want to simplify, then,

m = sqrt(136)

m = sqrt(4*34)

m = sqrt(4)*sqrt(34)

m = 2*sqrt(34)

What slope perpendicular to: m=5/8

Answers

Answer:

[tex] - \frac{8}{5} [/tex]

Is 2 - 91 positive or negative?

Answers

Answer:

Negitive

Step-by-step explanation:

2-91= -89

Answer:

negative

Step-by-step explanation:

-3 ( x + 4 ) = 6 ( -x - 1 )

Answers

Answer:

x = 2

Step-by-step explanation:

First distribute:

-3 (x+4) = 6(-x-1)

-3x -12 = -6x -6

Isolate the variable:

-6 = -3x

Simplify:

-6/3 = x

x = 2

Hope this helps!

X=2

I used to do this kinda math so your fine

What is 9*12 divided by 3

Answers

Answer:

Step-by-step explanation:

you would multiply and then divided

help me find the value of x

Answers

x=22

(X+1)+ (3x+1)= 90

4x+2=90
4x=88
x=22

Find the measure of the exterior angle.

Answers

Answer:

108°

Step-by-step explanation:

The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.

2a is an exterior angle, thus

2a = a + 10 + 44 = a + 54 ( subtract a from both sides )

a = 54

Thus 2a = 2 × 54 = 108° ← exterior angle

what are the x and y intercepts of the line 3x-4y=192

Answers

Answer:

x intercept (64,0)

y intercept (0,-48)

Step-by-step explanation:

A girl scout troop hiked 5.8 kilometers southeast in 1.5 hours. What was
the troop's velocity?
O 3.9 km/h southeast
о
4.9 km/h southeast
5.8 km/h southeast
O 7.2 km/h southeast

Answers

Answer:

the answer is 3.9 km/h southeast

Is 23 x 10^6 written in scientific notation

Answers

No , 23 x 10⁶ is not written in scientific notation.

Values that are either too huge or too little to be conveniently expressed in decimal form can be expressed using scientific notation (typically would result in a long string of digits).

It is also referred to as scientific form, standard index form, and standard form in the UK. This base ten notation is often used by scientists, mathematicians, and engineers because it can make various mathematical procedures easier.Non-zero values are written in the form in scientific notation m × 10ⁿ or where n is an integer and the coefficient m is a non-zero real number, m times ten raised to the power of n. (usually between 1 and 10 in absolute value, and always written as a terminating decimal). The real number m is known as the significand or mantissa, and the integer n is known as the exponent.

So 23 x 10⁶ written in exact scientific notation is given by 2.3 × 10⁷ .

Therefore 2.3 × 10⁷ is written in scientific notation whereas 23 x 10⁶ is not in scientific notation.

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The table below shows it's time to make a prototype cars to travel to different distances what is a constant rate of change in the situation in miles per hour

Answers

0.92

The table below shows it's time to make a prototype cars to travel to different distances what is a constant rate of change in the situation in miles per hour

Negation is the opposite (denial) of a statement. *
True
False

Answers

Answer:

True

Step-by-step explanation:

Answer:

True

Step-by-step explanation:

complete the square for x^2+5x

Answers

Answer:

(x + [tex]\frac{5}{2}[/tex] )² - [tex]\frac{25}{4}[/tex]

Step-by-step explanation:

Given

x² + 5x

To complete the square

add/ subtract ( half the coefficient of the x- term )² to x² + 5x

= x² + 2([tex]\frac{5}{2}[/tex] )x + [tex]\frac{25}{4}[/tex] - [tex]\frac{25}{4}[/tex]

= (x + [tex]\frac{5}{2}[/tex] )² - [tex]\frac{25}{4}[/tex]

If m<3 =60, find the m<8

Answers

Answer:

Step-by-step explanation:

What is the midpoint of the segment whose endpoints are (-4, 2) and (2,-2)?

Answers

Answer:

(-1,0)

Step-by-step explanation:

Midpoint formula: (coordinate 1 + coordinate 2)/2

(-4+2)/2 = -1

(-2+2)/2 = 0 0 divided by anything =0

A whale can stay under water for 5,399 seconds. The Guinness world record holder held his breath under water for 1,443 seconds. How much longer can the whale remain under water than the human? *

Answers

Answer:I got 3956 seconds, hope it helps.

Step-by-step explanation:

Solve: x3 = 27

A) X = 3

B) X= 3 and x = -3

C) X = 9

D) X = 9 and x = -9

Answers

Answer:

Step-by-step explanation:

27/3=9

Just do cube root of 27.

x has to equal 3 because -3 cubed is -27, 9 cubed is 729, and -9 cubed is -729.

X = 3, The answer is choice A.

Which of the following irrational expressions are located between 6 and 8 on the number line? Select three that apply.

Answers

Answer:

A) √7 + 4

B)2√15

D)√23+√8

Step-by-step explanation:

The options are:

A) √7 + 4

B)2√15

C)8-√5

D)√23+√8

E)√80-3

Analysing A.

√7+4 = 2.64575131106459 + 4

√7 + 4 = 6.64575131106459

Analysing B

2√15 = 2 * 3.87298334620741

2√15 = 7.74596669241483

Analysing C

8-√5 = 8 - 2.23606797749978

8 - √5 = 5.76393202250021

Analysing D

√23+√8 = 4.79583152331271 + 2.82842712474619

√23+√8 = 7.62425864805890

Analysing E

√80-3 = 8.94427190999915 - 3

√80-3 = 5.94427190999915

After the above analysis;

Options A, B and D answer the question

Answer: 7+4

5/15

/80-5

Step-by-step explanation:

find the difference between the actual values of the two sixes in the number 6036

Answers

the difference between the two sixes is the first six’s actual value is 6000 where the second six is 6

7.
6. Mr. Phuong stayed in a hotel room for 2
nights that cost $210. The hotel room tax
rate in the city is 12%. What is the total cost
for the hotel room? (Example 2)

Answers

Answer:

The total cost of the hotel room is $235.20

Step-by-step explanation:

Here, we want to find the total cost of the hotel room

Total cost of hotel room = Cost of hotel room for the two nights + tax

Tax = 12%

Total cost = 210 + 12% of 210

Total cost = 210 + (12/100 * 210)

Total cost = 210 + 25.2

Total cost = $235.2

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