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Tamiku [17]
3 years ago
9

Find an equation perpendicular to x=1 and passing through (8,-9)

Mathematics
1 answer:
valina [46]3 years ago
3 0

Answer:

y=-9

Step-by-step explanation:

We want to find an equation of a line that's perpendicular to x=1 that also passes through the point (8,-9).

Note that x=1 is a <em>vertical line </em>since x is 1 no matter what y is.

This means that if our new line is perpendicular to the old, then it must be a <em>horizontal line</em>.

So, since we have a horizontal line, then our equation must be our y-value of our point.

Our y-coordinate of our point (8,-9) is -9.

Therefore, our equation is:

y=-9

And this is in standard form.

And we're done!

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allochka39001 [22]
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First you do the parenthesis, there are none so you skip this

Then the exponents, none so skip it

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Find the surface area and volume of a sphere with a radius r=0.8ft. Round your answer to the nearest tenth
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To solve this problem you must apply the proccedure shown below:

1. You must use the formula for calculate the volume of a sphere and the formula for calculate the surface area of a sphere, which are:

V=\frac{4}{3} \pi r^{3}

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2. The volume is:

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