3 years ago

9x^2-12x-5 Simplified

Mathematics

2 answers:

yanalaym [24]3 years ago

5 0

(3x-5)(3x+1) is the answer

Nuetrik [128]3 years ago

3 0

Answer:

(3x-5) (3x+1)

Step-by-step explanation:

Hope this help a lot!

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3 years ago

Help me what is 11u2 over 121v

hodyreva [135]

Answer:

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Step-by-step explanation:

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3 years ago

Julia and her husband own a coffee shop. They experimented with mixing a City Roast Columbian coffee that cost $7.00 per pound w

Tcecarenko [31]

Answer:

The number of pounds of City Roast Columbian coffee they should buy is 1 and the number of pounds of French Roast Columbian coffee they should buy is 11.

Step-by-step explanation:

Let

x ----> the number of pounds of a City Roast Columbian coffee

y ---> the number of pounds of a French Roast Columbian coffee

we know that

$x+y=12$ -----> equation A

$7x+8.20y=8.10(12)$ ----> equation B

Solve the system of equations by graphing

The solution is the intersection point both graphs

The solution is the point (1,11)

therefore

The number of pounds of City Roast Columbian coffee they should buy is 1 and the number of pounds of French Roast Columbian coffee they should buy is 11.