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Mathematics

1 answer:

choli [55]3 years ago

7 0

Answer: B.x^3+4x^2-19x+14 is correct

Step-by-step explanation:

(x + 7)(x2 – 3x + 2)

Multiplying both

x^3-3x^2+2x+7x^2-21x+14

x^3+4x^2-19x+14

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Suppose a firm in a competitive market earned $1,000 in total revenue and had a marginal revenue of $10 for the last unit produc

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Step-by-step explanation:

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Molly and Arthur are taking their daughter Ginny on a roller coaster ride. For safety, they need to find their total weight befo

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Answer:

This is weirdly written, but let's try to solve it:

M is the mass of Molly

A is the mass of Arthur

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We can represent the weight as:

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or as:

A + (G + M)

the first situation shows that Molly and Arthur are weight together (this is why their weight is shown as only one), and then they weight Ginny alone.

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3 years ago

Are all quadrilaterals parallelograms?

kondor19780726 [428]

Answer:

No, but all parallelograms are quadrilaterals.

Step-by-step explanation:

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3 years ago

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About 1.75 million people live in a circular region with a 15-mile diameter. Find the population density in people per square mi

pav-90 [236]

About 1.75 million people live in a circular region with a 15-mile diameter. Find the population density in people per square mile.

Solution: We are given that the population of a circular region = 1.75 million = $1,075,000$