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NeTakaya
3 years ago
15

Which ordered pair is a solution of the equation 2x − y = 9?

Mathematics
2 answers:
Elodia [21]3 years ago
6 0
You can try by plugging each ordered pair and seeing if the equation comes out true.

(5, 1)

2 * 5 - 1 = 9

That's correct so C is the correct answer.

levacccp [35]3 years ago
4 0

Answer:

5,1

Step-by-step explanation:

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I need help solving this question, please show work tysm!
dexar [7]
The triangles r the same so that’s y it’s equal lol
8 0
3 years ago
What is the y-intercept of f–1(x)?
wolverine [178]

Answer:

-16

Step-by-step explanation:

The given linear function is ; f(x)=\frac{3}{4}x+12

Let y=\frac{3}{4}x+12.

We interchange x and y.

x=\frac{3}{4}y+12.

We solve for y.

x-12=\frac{3}{4}y.

We now multiply through by \frac{4}{3} to get:

\frac{4}{3}x-12\times\frac{4}{3}=y.

This simplifies to;

y=\frac{4}{3}x-16.

Hence f^{-1}(x)=\frac{4}{3}x-16.

The y-intercept is -16

8 0
4 years ago
Perimeter of a rectangle with s length of 7.5 m and the width of 4 m
solmaris [256]

With perimeter, all you have to do is add all the lengths and widths together.

7.5 + 7.5 + 4 + 4 = 23

Answer : 23 m

Hope this helps, if not, lmk

5 0
4 years ago
A candle manufacturer sells cylindrical candles in sets of three. Each candle in the set is a different size. The smallest candl
dem82 [27]

Answer:

A. 27 π cubic inches

Step-by-step explanation:

The volume of a cylinder is calculated using the formula;

Volume=\pi r^2h

From the given information, the smallest candle has a radius of 0.5 inches and a height of 3 inches.

We substitute r=0.5 and h=3 into the given formula.

The vlume of the smallest candle is

Volume=\pi \times0.5^2\times 3

Volume=\frac{3}{4}\pi in^3

from the given information, the other two candles are scaled versions of the smallest, with scale factors of 2 and 3.

The volume of the other two candles will be 2^3\times \frac{3}{4}\pi=6\pi in^3 and 3^3\times \frac{3}{4}\pi=\frac{81}{4}\pi in^3

The wax needed to create one set of candle is

\frac{3}{4}\pi+6\pi+\frac{81}{4}\pi=27\pi\: in^3

The correct answer is A

8 0
4 years ago
Read 2 more answers
Five less than three times a number ​
olga55 [171]

Answer:

3x-5

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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