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VLD [36.1K]
3 years ago
13

What can you multiply to eliminate a variable?

Mathematics
1 answer:
AlladinOne [14]3 years ago
7 0

Answer:

A. First equation by -2

Step-by-step explanation:

if you multiply the first equation by -2, the -4y cancels 4y

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I really need help with this math problem. Can anyone please help.
Sonja [21]
I found these
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5 0
4 years ago
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Find the volume of the sphere.
Ksju [112]

Answer:

\frac{1}{48} \pi units cubed

Step-by-step explanation:

The volume of a sphere is: \frac{4}{3}\pi  r^{3}

We know the radius r = 1/4, so we just plug this into the equation:

(4/3)*\pi*(1/4)^3 = (4/3)*\pi*(1/64) = \frac{1}{48} \pi

So, the answer is  \frac{1}{48} \pi units cubed.

4 0
4 years ago
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No one helped me please please please help please
Softa [21]

Answer: 1/36

Step-by-step explanation:

Calm down, I'm here to help! You might want to watch some videos on how to solve negative powers, but it's simpler than you think.

An exponent expression is formatted as a^b.

If "b", the exponent, is negative, then you can solve expression like this:

1/a^-b

By writing -b, I mean the opposite of b. For example, the opposite of -2 is 2.

Let's use that rule to solve this problem.

1/6^-(-2)

1/6^2

1/6*6

1/36

There you go! It's not too scary now, is it? Let me know if you'd like me to link some resources!

5 0
3 years ago
(06.04 MC) Dennis drew the line of best fit on the scatter plot shown below: What is the approximate equation of this line of be
elena-14-01-66 [18.8K]

Answer:

Step-by-step explanation:

In order to write the equation of this line, we need to pick 2 points on the graph where the line goes right through the intersection of the grids. Actually, you only need 1 of these, because the line goes through at (0, 15). Another point then can be (6, 6). Locate this point so you know what I means when I say that the line goes right through where the grids intersect at x = 6 and y = 6 (as opposed to somewhere in the middle of one of these grids). Find the slope between these 2 points:

m=\frac{6-15}{6-0}=-\frac{9}{6}=-\frac{3}{2}

Since there's only one choice with that slope, that is the choice you want.

5 0
3 years ago
Identify the coefficient of 2xy3
Nadya [2.5K]
The coefficient of 2xy3 is 2 
5 0
3 years ago
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