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OLEGan [10]
2 years ago
5

Which expression is equivalent to r^9/r^3? O r^3 O r^6 O r^12 O r^27

Mathematics
2 answers:
valkas [14]2 years ago
5 0

Answer:

r^12 no r^6

Step-by-step explanation:

I was wrong it is r^6 r−9(−3) r−9+3=r−6

  • r-6 becomes 1 over r6

Rus_ich [418]2 years ago
5 0

Answer:

{r}^{6}

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Which expression is equivalent to -2 1/2 / -2/3?<br> PLEASE HURRY
antoniya [11.8K]

Answer:

-5/2 x - 3/2

Step-by-step explanation: this is the answer don’t ask how

3 0
4 years ago
Raul is selling coupon books. He started with 50 coupon books and has already won a prize for selling at least 10 coupon books.
Svetach [21]

Answer:

Option 3.

Step-by-step explanation:

The given function is

f(x)=20x

where, x is number of coupon books.

We have to find the practical domain for the given function.

Domain : The set of input values is called domain.

It is given that Raul is selling coupon books. He started with 50 coupon books and has already won a prize for selling at least 10 coupon books.

The number of coupon books can not be a decimal or fraction value. It means the values of x are integers.

The value x is all integers from 10 to 50.

Hence, the correct option is 3.

3 0
3 years ago
Use the distance formula to determine the distance between (-8,10) and (-6,7)
hjlf

Answer:

Distance: \sqrt{13} units

Step-by-step explanation:

The distance formula is d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2} where:

  • d is the distance between points (x_1,y_1) and (x_2,y_2)
  • (x_1,y_1) are the coordinates of the first point
  • (x_2,y_2) are the coordinates of the second point

We are given that:

  • (x_1,y_1)=(-8,10)
  • (x_2,y_2)=(-6,7)

To determine the value of our distance, d, we plug in our given information into the formula and solve for

d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

d=\sqrt{(-6-(-8))^2+(7-10)^2}

d=\sqrt{(-6+8)^2+(-3)^2}

d=\sqrt{(2)^2+(-3)^2}

d=\sqrt{4+9}

d=\sqrt{13}

Therefore, the distance between (-8,10) and (-6,7) is \sqrt{13} units.

See the attached graph for a visual.

5 0
3 years ago
A collection of coins contains 12 nickels, 5 quarters, and 7 dimes. what is the percentage of dimes in the collection
jok3333 [9.3K]
There are 7 dimes out of 24 total coins in the collection put 7/24 in a calculator and you should get .2916 repeating
5 0
3 years ago
Cristina is sending out thank you cards for birthday presents. She has pink (P), blue (B), and green (G) cards, and white (W) an
Brut [27]

Answer:

PW, BW,  GW, PY,  BY, GY

Step-by-step explanation:

We need to determine the sample space

pink(P), blue (B), and green (G) cards,   (W) and yellow (Y) envelopes

Each color card can match with each color envelope

Start with the white envelopes and each color card

and then the yellow envelopes with each color card

PW   BW  GW

PY  BY   GY

3 0
3 years ago
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