3 years ago

2x+9+3x+x= one solution

Mathematics

1 answer:

Damm [24]3 years ago

7 0

The answer I think is 14 +x3

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3/ [(5)^(1/2) – (3)^(1/2)] simpfily

love history [14]

Usually the easiest way to solve this is by using a calculator. Of course only if your teacher allows you too.

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3 years ago

3(-2a-4)+3a I need to answer for this for khan academy, the answer options are

8_murik_8 [283]

Answer:

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3 years ago

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Y = –2x + 30<br> y = 4x<br> Plz help

kati45 [8]

Answer: $x=5$

Step-by-step explanation:

Step 1:-

Given equations are y=-2 x+30........(1)

another equation is y=4 x ..........(2)

Step 2:-

solving these two equations (1) and (2)

Equating both equations are $4 x = -2 x+30$

$4 x+2 x =30$

$6 x =30$

Step 3:-

The final answer is $x=5$

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3 years ago

What is the slope of line a?

marta [7]

Answer:

-1/3

Step-by-step explanation:

Slope is defined as "rise over run". If you count out the units, you should be able to see that your rise is 1 and your run is 3 and is pointing downward, so your answer is -1/3.

Alternatively you could use Slope Formula: $m = \frac{y2-y1}{x2-x1}$

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3 years ago

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A line passes through the points (–5, 2) and (10, –1). Which is the equation of the line?

beks73 [17]

Slope = (2 + 1) / (-5 - 10) = -3/15 = - 1/5

Equation

y - 2 = -1/5 (x + 5)

y - 2 = -1/5 x - 1

y = -1/5 x + 1

Answer

y = -1/5 x + 1

6 0

3 years ago

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