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Deffense [45]
3 years ago
12

Solve each equation:

Mathematics
2 answers:
Fynjy0 [20]3 years ago
5 0
1. -6
I have no idea for 2
timurjin [86]3 years ago
3 0
1.) x=-9 because
2.) x=16
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Please help me I can’t figure them out
OLga [1]
Where is the question
8 0
3 years ago
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
A high-speed computer printer prints a page in 1/6 second. Using this printer, how long would it take to print 30 pages?
german
30*\frac{1}{6}=\frac{30}{6}=5
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3 years ago
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All you have to do is make the fraction of it which is 4/30. Then simplify to 2/15 which is your answer.
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Helppppppp tutorssssss arent workinggg
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The surface area would be 166.
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