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2 years ago

Please help

Mathematics

1 answer:

morpeh [17]2 years ago

7 0

Answer:

Length= 20

Width= 4

Step-by-step explanation:

First, you can turn this into an equation:

Length= L

width= w

So L=5w

And using the area formula for rectangles, we get L*w=80.

Now, to solve, we only need to substitute 5w into L.

Now we have 5w^2=80. We divide by 5 on both sides to get w^2=16.

We take the square root of both sides. since the length and width of an rectangle cannot be negative, we are left with only w=4.

So plugging back in, we get L=20.

To check, 20*4=80.

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3 years ago

Let L be the line parametrized by x = 2 + 2t, y = 3t, z = −1 − t. (a) Find a linear equation for the plane that is perpendicular

Elden [556K]

Answer:

Step-by-step explanation:

Given that L is a line parametrized by

$x = 2 + 2t, y = 3t, z = −1 − t$

The plane perpendicular to the line will have normal as this line and hence direction ratios of normal would be coefficient of t in x,y,z

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So equation of the plane would be of the form

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3 years ago

In the following exercises, solve

yKpoI14uk [10]

Answer:

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Step-by-step explanation:

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