I need help with this problem. How do I do it?

Mathematics

1 answer:

Anna11 [10]3 years ago

8 0

Answer:

Step-by-step explanation:

For the area of a rectangle we use A = L* W

We know area or A = 420

and we know length or L = 21

Now we need to find the width or W

(420) = (21) * W

Divide both sides of the equation by 21 to isolate the variable.

That leaves us with:

W = 20

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P(5,3); y=4x<br><br>if you help me I will be thankful forever pls

horrorfan [7]

Y= -1/4x + 4.25, perdendicular then it must be the opposite of 4x which is -1/4. Then you multiply it with 5 and then add or subtract a number so you can find 3. So -1/4× 5 + 4.25= 3. Here you gooo!

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3 years ago

Solve:

Snowcat [4.5K]

4x+11 is The answer

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3 years ago

Let L: R2 --> R2 be a linear operator.If L((1,2)T) = (-2,3)Tand L((1,-1)T) = (5,2)TFind the value of L((7,5)T

devlian [24]

Answer: L((7,5)T)=(7, 18)T

Step-by-step explanation:

The step by step explanation is given in picture.