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

# Helppppp Please ( solving a system)

3x+y+z=13 2x+2y-3z+3 3x+y-z=7   A) (2,-4,11) B) (3,4,0) C) (2,4,3) D)(6,-3,4)

# find f(-3) given F(x)=3x^2+x-7

Hello. I NEED HELP WITH THIS EQUATION MY OWN TUTOR GAVE ME TO SOLVE. ASAP :)

# Find the equations to both line

Find the equations to both lines through the point (2,1) that are tangent to the parabola y=x2+x+4 y= (smaller slope) y=(larger slope)

# find the equation of the tangent line

Find the equation of the tangent line to the curve at the given point.\\ y=1+2x-x3, (1,2) y=

# equation with variables

hi, my answer isnt jiving...is it possible the issue is negative sign? the equation is: 3x-4y=8 then i take 0 for x and 2 for y what i did was : 3(0)-4(2) =8    ...

Solve the equation . Show work.   (x-5)x=14

# The equations of two lines re x - 3y = 6 and y = 3x + 2. Determine if the lines are parallel, perpendicular or neither.

A) parallel B) perpendicular C) neither

x^2-2x-15=0

# Given functions f and g, perform the indicated operations:

f(x) = 8x2 -7x g(x) = 8x - 4   (fog)(x)   I would really appreciate the steps and final outcome of this problem. Thank you!

# 500: x=200:1

I have never seen an equation set up like this before. What do the colons represent? I'm sure it's a very simple equation and I'm stumped.

# How do you find the b in this: y=2x (For graphing)

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# what is 5x+7=32

i ma trying to work this out but i cant????

2x +5 = 4x=8

# Simplify this rational expression

Simply the following rational equation (x-5/x2-25) - (3/x+5)= A/B where A and B are polynomials of degree as low as possible and the leading coefficient of B is 1. A= B= &...

# Can you think of one real-world example of when the concept of functions might be useful? Do you think you will ever use functions in your life to solve probl

Can you think of one real-world example of when the concept of functions might be useful? Do you think you will ever use functions in your life to solve problems? If yes, explain how and why; if no,...