Hellpppppp Please

I have to solve this system:   3x+y+z=13 2x+2y-3z=3 3x+y-z=7

Select the approximate values of x that are solutions to f(x)=0, where f(x)=-6x^2+7x+6

Select the approximate values of x that are solutions to f(x)=0, where f(x)=-6x2+7x+6   A. {-0.57, 1.74} B. {-6, 7} C. {-1.17, -1.00} D. {-1.00, 1.17}

Select the approximate values of x that are solutions to f(x)=0, where f(x)=-6x^2+8x+9

Select the approximate values of x that are solutions to f(x)=0, where f(x)=-6x2+8x+9.   A. {2.06, -0.73} B. {-6, 8} C. {-1.33, -1.50} D. {-0.67, 0.89}

06/07/14

Story Problem

A bank loaned out $76,000, part of it at the rate of 9% per year and the rest at the rate of 2% per year. If the total amount of interest owed to the bank at the end of one year was $5270, what was... more

Factoring (Foil)

The question is 15x^3-25x^2+10. I got up to the part of 5x(3x^2-5x+2) but after that I just get stuck. 

06/05/14

How to use synthetic division to find all zeros of f?

So the full question is use synthetic division to divide f(x) = x3 - 2x2 - 13x - 10 by x + 2.  Use the result to find all zeros of f.  I don't understand how to do this at all and I have a final... more

06/05/14

thanks alot please help! math

thanks alot please  help!  you work a part time job earning 6.80/hr with tips that average 2.30/hr you work 20hr/wk and you deductions are F(ICA 7.65%) federal tax withholding (8.95%) and state... more

06/05/14

probability question

A game has 50 chips, each labeled with a number from 1 through 50. Carla randomly chooses one chip.What is the probability that she chooses 15 or a multiple of 10? A. 1/500 B. 1/10 C. 3/25 D. 1/6

06/05/14

I need 1/3 of tomatoes than eggplant, twice as many tomatoes as zucchini and 1/2 as many bells peppers than eggplant. How many of each?

It is a question regarding tomatoes, zucchini, bell peppers and eggplant.  For each vegetable you can choose 0 - 8 for amounts.  So the question is asking how many of each vegetables would there be.

06/04/14

A university's leadership council is made up of 12 members: 5 are students, 4 are teachers, and 3 are deans. A newspaper reporter is planning to select t

A university's leadership council is made up of 12members: 5 are students, 4 are teachers, and 3 are deans. The first member will be chosen at random, and then the second member will be chosen at... more

06/03/14

adding rational expressions

_2x_  + _6__ X-3       3-xadding 

06/01/14

$1000 invested at simple 10% annual interest for 8 months will earn __________ interest.

$1000 invested at simple 10% annual interest for 8 months will earn __________ interest. 

06/01/14

What is the monthly payment if a a barber purchases a car for $21,500 and finances the entire amount at an annual interest rate of 5.9% for 4 years.

What is the monthly payment if a a barber purchases a car for $21,500 and finances the entire amount at an annual interest rate of 5.9% for 4 years. 

06/01/14

What is the annual interest rate of an investment that pays 9.2% annual interest compounded quarterly?

What is the annual interest rate of an investment that pays 9.2% annual interest compounded quarterly?

f(x)= 49x2-16 / 2x-6

find the domain of the rational function.

05/31/14

What would it cost to buy a bill that pays $10,000 after 6 months where the simple annual interest rate is 4.75%?

What would it cost to buy a  bill that pays $10,000 after 6 months where the simple annual interest rate is 4.75%?  

What is the orthocenter of triangle ABC?

The coordinates are A = (2,6); B = (8,6); and C = (6,2). I need help finding the coordinates of the orthocenter. I have looked on youtube but I'm not completely understanding. Any help would be... more

05/28/14

how do you find the product of 3n(n2-5n+2)

how to find the product 3n(n2-5n+2)  

05/28/14

how to find the product (4c-2)(c+2)

 (4c-2)(c+2)said

05/28/14

Find the required payment for the sinking fund: Quarterly deposits earning 7.4% to accumulate $66,000 after 30 years.

Find the required payment for the sinking fund: Quarterly deposits earning 7.4% to accumulate $66,000 after 30 years.

How to factor 6x+5x-56

6x2 5x-56  

05/28/14

You are offered three investments. The first ensures you will earn 19% annually, the second will earn 18.5% compounded quarterly, and the third will earn 17% co

You are offered three investments. The first ensures you will earn 19% annually, the second will earn 18.5% compounded quarterly, and the third will earn 17% compounded weekly. Which would be the... more

05/27/14

(14x4^)(3x-3^z2^)8x2^y-9^z-3^)

how do u ssimplify this  

05/26/14

SQUARE FOOTAGE

Can anybody tell me how to correctly figure the square footage of the UOP in the diagram on this link please?    length times width is 511 but how do you take out the area that not perfectly... more

05/26/14

simple interest rate

hailey earned $75 in simple interest for depositing $500 in a savings account and leaving it there for 5 years. What was the simple interest rate for he savings account?

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