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GrogVix [38]
2 years ago
11

Evaluate the expression when x=1/3 and y=-7/43x+y​

Mathematics
2 answers:
dolphi86 [110]2 years ago
4 0
Answer) -3/4 or decimal form -0.75
Olin [163]2 years ago
3 0
-3/4 or -0.75 (if in decimal)
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IS THIS CORRECT?! I HAVE A BACK SIDE TOO, IF ANYTHING IS WRONG PLS PLS LMK!!
Fudgin [204]

The only error you made is on problem 3. Everything else is correct. Nice work.

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

Here is how to solve problem 3

Plug x = 1 into the equation and solve for y

-3x + y = 1

-3*1 + y = 1 ... replace x with 1

-3 + y = 1

y - 3 = 1

y - 3 + 3 = 1 + 3 .... add 3 to both sides

y = 4

<h3>The answer is 4</h3>

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

Verifying the answer:

Plug (x,y) = (1,4) into the equation. Both sides should be the same number after simplifying both sides.

-3x + y = 1

-3*1 + 4 = 1 ..... replace x with 1; replace y with 4

-3 + 4 = 1

1 = 1

The answer is confirmed.

If you were to graph -3x + y = 1, which is equivalent to y = 3x+1, you'll find that the point (1,4) is on this line.

4 0
2 years ago
I need some help please.
Crazy boy [7]

Answer:

(-5,-4)

Step-by-step explanation:

A 180 counterclockwise rotation of (5, 4).

The transformation rule is as follows:

(x,y) turns into (-x,-y).

5 0
3 years ago
What is the answer 27x^3-1=0
chubhunter [2.5K]
X=cubic root 2/27
Glad to help
6 0
3 years ago
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Maya is on the swim team. Each day she swims 800 m. How many kilometers does she swim each day?
I am Lyosha [343]
The answer to this question comes out to be 0.8 kilometers

I kilometer is equal to 1,000 meters, so in order to get your answer, you divide 800 by 1,000.
3 0
3 years ago
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30 POINTS!!! Which choice is equivalent to the fraction below when x is greater than or equal to 3?
Mashcka [7]

Answer: C.

\frac{9}{\sqrt{x} -\sqrt{x-3} }=\frac{9(\sqrt{x} +\sqrt{x-3} )}{x-(x-3)}=\frac{9(\sqrt{x} +\sqrt{x-3} )}{3}=3(\sqrt{x} +\sqrt{x-3})

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
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