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german
3 years ago
9

Solve for x. Write both solutions, separated by a comma. 9x^2+ 3x – 2 = 0

Mathematics
1 answer:
kogti [31]3 years ago
6 0

Answer:

x=1/3, x=-2/3

Step-by-step explanation:

9x^2 +6x -3x -2=0

6x and -3x add up to 3x. You need four terms to factor.

Then you factor=

3x(3x+2)-1(3x+2)=0

(3x-1)(3x+2)=0

Then you can make two equations

3x-1=0 and 3x+2=0 because to multiply to get 0, at least one will be 0.

3x-1=0

3x=1

x=1/3

3x+2=0

3x=-2

x=-2/3

So your answers are x=1/3, x=-2/3

hope this helps!

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An artist is trying to choose 5 covers for children’s books. There are 10 different covers to choose from. How many ways can the
Aleksandr [31]

Answer:

252

Step-by-step explanation:

The order of the books isn't important, so we'll use combinations.

The number of ways to choose 5 books from 10 is:

₁₀C₅ = 10! / (5! (10 − 5)!)

₁₀C₅ = 10! / (5! 5!)

₁₀C₅ = 10×9×8×7×6 / (5×4×3×2×1)

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3 years ago
The basement is 28ft wide and 35ft long. How wide and long is the drawing?
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Answer:

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Step-by-step explanation:

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2 years ago
In the expression -12+m-9m+13, name the coefficients​
torisob [31]

Answer:

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1

9

13

Step-by-step explanation:

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4 0
3 years ago
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djverab [1.8K]

Answer:

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7 0
3 years ago
* NOTICE THIS IS A 2 PART QUESTION
blondinia [14]

Answer: you would have to purchase $1300 of merchandise and the total yearly amount paid to the warehouse for each plan is $1210

Step-by-step explanation:

Let x represent the number of dollars of merchandise that you would have to purchase in a year to pay the same amount under both plans.

Plan A offers an annual membership fee of $300 and you pay 70%, of the manufacturers reccomended list price. This means that the total cost of using plan A would be

300 + 0.7x

Plan B offers an annual membership fee of $40 and you pay 90% of the manufacturers reccomended list price.

This means that the total cost of using plan B would be

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For both plans to be the same,

300 + 0.7x = 40 + 0.9x

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The total yearly amount paid to the warehouse for each plan would be

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3 years ago
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