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3 years ago

(40 pts)can you factor the difference of square?perfect square trinomials?

Mathematics

1 answer:

stira [4]3 years ago

7 0

Answer:

Step-by-step explanation:

The difference of two squares may be represented by the formula: a^2-b^2,

which can be factored as (a+b)(a-b)

A perfect square trinomial may be represented by the formula: a^(2)-2ab+b^2 or a^(2)+2ab+b^2, depending on the sign of b

if b is negative: use the formula a^(2)-2ab+b^2, which can be factored as (a-b)*(a-b) or (a-b)^(2)

if b is positive: use the formula a^(2)+2ab+b^2, which can be factored as (a+b)*(a+b) or (a+b)^(2)

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denis-greek [22]

here we are told that

number of dolls sold varies directly with advertising costs

number of dolls varies inversely with price of a doll

so initially

1800 dolls sold when advertising costs were $ 34 000

and price of a doll was $ 25

next they increased the advertising costs to $ 42 000

as we know number of dolls sold varies directly with advertising costs

so here when the advertising costs increase the number of dolls sold too should increases as its directly proportional relationship

we arent told that the price of a doll is changed so there's no effect on the number of dolls sold due to changes in price of a doll

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increase in advertising cost leads to increase in number of dolls sold

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3 years ago

Hey, I was wondering, what is 3(6m)+m??? Who can help me???

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What is 3(6m) + m?

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