Determine whether each number is rational or irrational

Answer:

3.33m/s

Step-by-step explanation:

The perimeter of a rectangle is

= 2(L + W)

L = 500m

W = 200m

= 2(500 + 200)

= 2(700)

= 1400m

If it takes Rebekah 420 s to run the entire perimeter of her property.

Her average speed in meters per second rounded to the nearest hundredth is = Distance/Time

= 1400m/420s

= 3.3333333333 m/s

Approximately = 3.33m/s

Answer:

AB and BC are Skew

AE and BF are Parallel

Step-by-step explanation:

Answer:

6 · x = 42 and x = 7

Step-by-step explanation:

Answer:

7

Step-by-step explanation:

Answer:

I'm not 100 % sure but I think is zero

Answer:

The answer is -5 + 5= 0 Or its A

Answer:

x = 91

Step-by-step explanation:

The sum of the 4 interior angles of a quadrilateral = 360°

Sum the 4 angles and equate to 360, that is

x + 10 + x - 10 + x + 6 + x - 10 = 360 , then

4x - 4 = 360 ( add 4 to both sides )

4x = 364 ( divide both sides by 4 )

x = 91

Answer:

I wish I could answer better, but the bets I can do is that 81<x<99

Answer:

y−7=2/3⋅(x-5)

Step-by-step explanation:

Find the point-slope form.

Answer:

26. 1/2

27. 1/4

28. 25

29. 20

Answer:

26) 50% or 1/2   27) 25% or 1/4   28) 25 times   29) 20 times

Step-by-step explanation:

26) A is divided in half of the pie graph, where B and C make up the other half, but you are only concerned about A, so it is half of 100%. 100% / 2 = 50%

27) B and C make up the other half of the pie chart. B is half of the half, so that means (1/2) / 2 or (1/2)*(1/2) which equals 1/4. 1/4 times 100 = 25%.

28) From question 26, you are expected to land on A 50% of the time. So 50% of 50 times is equal to 25 times. 50% of something is equal to 1/2 of something, so you divide 50/2 or multiply 50 * (1/2)

29) From question 27 B and C make up the other half of the pie chart. If B is 1/2 of 1/2, so is C, meaning that you have an equal chance of landing C as you have a chance of landing on B - 25% or 1/4. If you spin 300 times, you calculate 25% or 1/4 of 300. To do that you either multiply 300* (1/4) or do 300 / 4.

Answer: [tex]\frac{13}{24}[/tex]

Step-by-step explanation: 11/12 - 3/8

1. First, we will find a common denomenator. It needs to be the least common factor, or the answer will not be in its simplist form. Let's take a look at the multiples of 12 and 8.

12: 12, 24, 36, 48, 60, 72, 84, 96

8: 8, 16, 24, 32, 40, 48, 56, 64, 72

2. Next, we will choose the smallest common multiple. That would be 24.

3. Now, we will work this out.

11/12 = 22/24

3/8 = 9/24

4. Subtract.

22/24 - 9/24

= 13/24

= [tex]\frac{13}{24}[/tex]

I found the denomenators by multiplying.

Hope this answer helped!

Answer:

13.20$ :)

Step-by-step explanation:

40% off of 20$ is 12$ and 10% of 12$ is 1.20$ add that and you get 13.20$

Answer:

3/2

Step-by-step explanation:

Because the problem tells you that the two triangles are similar, the value of a/b would be equivalent for both triangles. The fact that they are right triangles also indicates which sides are which in case the image was not drawn to scale. A is proportional to 2.1 and b is proportional to 1.4. So a/b= 2.1/1.4. This can reduce itself to 3/2 because both are divisible by .7

Answer: 6 pages

Step-by-step explanation: 2 1/3 + 3 3/4 = 6

Answer:

Original amount invested = $3400 .

Step-by-step explanation:

Let the original investment of Steve = $x

Stock increased in the first year = 50% of amount invested

Therefore total amount after one year = x + 0.5x = 1.5x

Commission paid to the stock broker = $350

Amount lost by him = $400

Amount withdrawn by him = $300

Total amount decreased from the amount after 1 year

= 1.5x - (350 + 400 + 300)

= 1.5x - 1050

This remaining amount is doubled, so the final amount

= 2(1.5x - 1050)

= 3x - 2100

This final amount is equal to $8100

3x - 2100 = 8100

3x = 8100 + 2100

3x = 10200

x = $3400

Therefore original amount invested in the stock market was $3400 .

Answer:

pretty sure its the 4th on reflection and rotation,

Step-by-step explanation:

I haven't done these in a while, but am 90 % sure

Answer:

D, Reflection and Rotation.

Step-by-step explanation:

Refelction is taking an image and flipping it (so it's backwards), and roation is turning it.

-process of elimination:

-must be reflected

-leaves 2 answers

-translation means just moving something

-it's D

Answer:

Vertical pairs are the complete opposite of one another. It is simple to find vertical pairs because they are opposite of one another.

Step-by-step explanation:

Look at the example.

Answer:

she is correct its all about queen B

Step-by-step explanation:

Answer:

Incorrect

Step-by-step explanation:

First thing she did wrong was applied to distributive property incorrectly. She should of multiplied the numbers in the parenthesis by -1 instead of -12

6m-8=2m+10

6m-2m=10+18

4m=28

m=28/4

m=7

Answer:

23.7

Step-by-step explanation:

Answer:

It would be Town B.

Step-by-step explanation:

be So if we have 2/5 out of 100 then we would multiply 5 times whatever number, which would be 20, and then we would multiply the numeratoar times 20 and we would get 40/100 and that would equal -3.40 so then -3.40 is a lower temp that -3.33 so it would be Town B.

Answer:

14

Step-by-step explanation:

The diameter is always the same as 2*the radius, so if the radius is 7, the diameter is 14.  Most of the information presented is unrelated.

Answer:

100 miles

Step-by-step explanation:

Let the number of miles driven = x

Rapid Rental Car Company charges a $55 rental fee and $0.25 per mile driven.

$55 + $0.25x

55 + 0.25x

For the same car, Capital Cars charges $45 for rental fee and $0.35 per mile.

$45 + $0.35x

45 + 0.35x

Equation :

55 + 0.25x = 45 + 0.35x

The number of miles for which the companies’ charges will be the same is calculated as:

55 + 0.25x = 45 + 0.35x

Collect like terms

55 - 45 = 0.35x - 0.25x

10 = 0.10x

x = 10/0.10

x = 100 miles

The number of miles for which the companies’ charges will be the same is

100 miles.

Answer:

(-2,6)

Step-by-step explanation:

f^-1(x) = 1/8x+1 (an inverse power is the reciprocal of the function raised to the indicated value)

Answer:

(x+1)/8 = f^-1(x)

Step-by-step explanation:

switch x and y (aka f(x) )

x=8y+1

solve for your new y

(x+1)/8 = y

Answer:

5/36

Step-by-step explanation:

Answer:

2(2y+3) or simpified completely 4y+6

Step-by-step explanation:

Answer:

y=sin2x+3

Step-by-step explanation:

Answer:

1890 is the least common factor

Answer:

for 30 its Prime factorization of 30 = 2 × 3 × 5. Using all prime numbers found as often as each occurs most often we take 2 × 2 × 3 × 5 = 60. Therefore LCM (12,30) = 60.

for 42 its 42 and 54 is 378.

for 54 its The prime factorization of 54 is: 2 x 3 x 3 x 3. The prime factorization of 72 is: 2 x 2 x 2 x 3 x 3. Eliminate the duplicate factors of the two lists, then multiply them once with the remaining factors of the lists to get lcm(54,54) = 2

Step-by-step explanation:

Answer:

D!

Step-by-step explanation:

We need to obviously subtract, only C and D do thatt. But, you don't multiple t or 28 by 4. You need to multiply the difference, so you need parentheses!

Answer:

there are no signs between the x and y and constant

it could be

2x+5y=15

2x+5y=-15

-2x+5y=15

2x-5y=15

for ax+by=c, the equation of a line paralell to that is

ax+by=d where a=a, b=b, and c and d are constants

(for this answer, I'm going to use 2x+5y=15)

given 2x+5y=15, the equation of a line paralell to that is 2x+5y=d

to find d, subsitute the point (4,-2), basically put 4 in for x and -2 for y to get the constant

2x+5y=d

2(4)+5(-2)=d

8-10=d

-2=d

the eqaution is 2x+5y=-2 (Only if the original equation is 2x+5y=-15

pls mark me brainlest

Answer:

2x+ 5y= -2

Step-by-step explanation:

Answer:

its the first one I think

Step-by-step explanation:

Answer: the first one

      the third one and the last  one             hope this helps

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation: