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Airida [17]
3 years ago
5

Solve the equation 5=1/2 v-3 v=?

Mathematics
1 answer:
olya-2409 [2.1K]3 years ago
6 0
5=1/2v-3
5=1/2v
+3 +3
8=1/2v
/1/2 /1/2
16=v
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Which equation represents the line that passes through (5,8) and (9,2)
Dahasolnce [82]
ASSUMING This is a straight line so we gotta the formula for a straight line which is y=mx+b, where m represents the slope and b represents the y intercept.

First, we know this line passes through (5,8) and (9,2) we can use these for finding the equations. When we know two points, we use this formula:

y-y=m(x-x)

The first y is 8 and the second one is 2
The first x is 5 and the second one is 9

Plug it in:

8-2=m(5-9)
6=m(-4)
6/-4=m <— simplify this
m= -3/2

*NOTE: another way to find m is by calculating it (y-y)/(x-x)

Now we know m, we have to find b.
All you gotta do is plug everything you know back into the equation y=mx+b

y=mx+b
y=-3/2x+b <— now plug in a point we know(x,y)

8=-3/2(5)+b
8=-15/2+b
8-(-15/2)=b
b=8+15/2
b=16/2+15/2
b=31/2 (now you can write be as a fraction or a decimal in your equation, depending on what your teacher told you to use)
*NOTE: it is best to use fractions instead of decimals as it is more accurate sometimes.

Now we know all the variables that need to be known, we just need to rewrite the formula of the equation so the teacher can see.

m=-3/2
b=31/2

We don’t need to plug in x or y since it could have different values (since a straight line has MANY co-ordinates)

SO OUR EQUATION IS=
y=(-3/2)x+31/2

Hope you understand this, feel free to ask me anything!

6 0
3 years ago
What is the volume of a cylinder with base radius 4 and height 7
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Step-by-step explanation:

7 0
3 years ago
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zavuch27 [327]

Answer:

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First you have to simplify.

10x-9x=1x

So now the equation looks like this

x-8=8

Now you have to get x by itself

-8+8=0 and we have to do the same thing on both sides of the equal sign 8+8=16

The equation now looks like this x=16

And that's your answer

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How to solve Piecewise function- tax problem?
Nimfa-mama [501]

Answer:idk I’m just a little kid

Step-by-step explanation:

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3 years ago
43 ones times 3 tens = how many tens
romanna [79]
Well 43 ones times 3 tens is basically 43 times 30 which is 1,290
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3 years ago
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