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3 years ago

Factor : 2b^2 + 13b - 7Please help !!! :)

Mathematics

1 answer:

julsineya [31]3 years ago

4 0

2b² + 13b - 7

First you multiply the first and last number together, which is 2 and 7.

2 · 7 = 14

Now that you got 14, you try to find all the factors of 14 and see if any of them add up to or subtract to 13.

14:

1 · 14 = 14

2 · 7 = 14

Your factors are 1, 2, 7, and 14. 14 and 1 subtract to 13, so you can replace 13b with this:

2b² + 14b - 1b - 7 (it is not -14b + 1b because 13b is positive)

Next you factor the equation separately.

2b(b + 7) - 1b - 7

2b(b + 7) - 1(b + 7)

(2b - 1)(b + 7)

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2 years ago

The same bedroom furniture set costs $1,500 in both Florida and Alabama. The table gives a breakdown of the taxes someone would

vitfil [10]

Answer:

A: True

B, C and D: False

Step-by-step explanation:

We have a total sales tax for Alabama that is:

$T_A=4.225+1.375+3=8.6$

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A. The furniture set is cheaper in Alabama, because the amount of sales tax will be lower by about $8. TRUE

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C. The furniture set is cheaper in Alabama, because the amount of sales tax will be lower by $10. FALSE (the sale tax in Alabama is $129)

The amount of sales tax in Alabama is:

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3 years ago

Help pls

timurjin [86]

Answer:

s> 144 2/3

Step-by-step explanation:

I took the test in k12 and i got it right so yea !