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3 years ago

can someone help me solve this multiplying polynomial question? it would really help, the screenshot is attached (:

Mathematics

1 answer:

Korvikt [17]3 years ago

3 0

Answer:

-20x³ + 0x² + 15x - 20

Step-by-step explanation:

I would have said it the other way.

"Multiply each term in the top row by -5."

4x³ + 0x - 3x + 4

×(-5) ×(-5) ×(-5) ×(-5)

-20x³ + 0x² + 15x -20

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3 years ago

Hello This is pretty Easy But i forgot the basics

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3 years ago

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Deacon wants to order DVDs. Each DVD costs $12.95, and he must pay a shipping and handling fee of $4.95 for the entire order. De

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Answer:

12.95a + 4.95 ≤ 75

Step-by-step explanation:

Given:

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3 years ago

What is 5% of 80? Round to the nearest hundredth.

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Answer:

Step-by-step explanation:

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3 years ago

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A sandbox has an area of 10 2/3 square feet, and the length is 1/4 feet. What is the width of the sandbox?

AlekseyPX

Answer:

The width of the sandbox is $42\frac{2}{3} \ ft$ .

Step-by-step explanation:

Given,

Area of the sandbox = $10\frac{2}{3}=\frac{32}{3}\ ft^2$

Length = $\frac{1}{4}\ ft$

Solution,

Let the width of the sandbox be 'w'.

Since the sandbox is in shape of rectangle.

So we use the formula of area of rectangle.

$Area = Length\times Width$

On substituting the given values, we get;

$\frac{1}{4}\times w=\frac{32}{3}\\$

By cross multiplication method, we get;

$w=\frac{32\times4}{3\times 1} =\frac{128}{3} =42\frac{2}{3} \ ft$

Hence The width of the sandbox is $42\frac{2}{3} \ ft$ .

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4 years ago