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joja [24]
3 years ago
14

The product of a + 3b and –a2 + 4ab + 2b is –a3 + xa2b + 2ab + 12ab2 + yb2. What are the values of x and y in the expression?

Mathematics
2 answers:
NeX [460]3 years ago
8 0

Answer:

X=1   y=6

hope this helps i just took the test!

Anuta_ua [19.1K]3 years ago
6 0
First, we multiply the given expressions:
(a + 3b) (-a² + 4ab + 2b)
= -a³ + 4a²b + 2ab - 3a²b + 12ab² + 6b²
Simplifying:

-a³ + a²b + 2ab + 12ab² + 6b²

By comparison, we can determine the values of x and y, which work out to be:
x = 1
b = 6
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3 years ago
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If the Price Elasticity of Demand for a product is -.8, and the product currently sells for $100 per unit, how much will demand
egoroff_w [7]

Answer: Percentage change in quantity would decrease by 12.5%.

Step-by-step explanation:

Since we have given that

Price elasticity of demand = -0.8

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After change, price of each unit becomes = $110

% change in quantity would be

\dfrac{New-old}{old}\times 100=\dfrac{110-100}{100}\times 100=10\%

As we know the relation between price, quantity and elasticity.

e_D=\dfrac{\text{\% change in quantity}}{\text{\%change in price}}\\\\-0.8=\dfrac{10\%}{x}\\\\x=\dfrac{10}{-0.8}\\\\x=-12.5\%

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8 0
3 years ago
Our of the four runners: Alex, Ben, Curtis, and Dan, the oldest came in second place. Alex ran the distance faster than Curtis,
Alexus [3.1K]

Considering the situation described, the classification of the runners is given as follows:

Dan - Ben - Alex - Curtis.

<h3>What is the classification of the runners?</h3>

The oldest came in second place. Ben is older than Alex, and Curtis is older than Dan, hence either Ben or Curtis finished second.

Alex ran the distance faster than Curtis, and Dan ran faster than Ben and Curtis, hence considering the above observation Ben finished second and the classification is:

Dan - Ben - Alex - Curtis.

A similar problem, in which a situation is interpreted, is given at brainly.com/question/5660603

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5 0
1 year ago
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Step-by-step explanation:

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3 years ago
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-Dominant- [34]

Answer:

66.25 ft

Step-by-step explanation:

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66.25

They are 66.25 feet away from each other.

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