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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=

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

x^2-2x-15=0

# 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    ...

# 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,...

# -32 less than or equal to 8(x-5) less than 40

-32 less than or equal to 8(x-5) less than 40 and line it on a graph i dont know what else i could possibly wirte about this question i just want to know the answer

# 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

# The slope of a line whose equation is x = 6 is?

A) no slope B) 0 C) 6

# The slope of a line whose equation is 5x - 3y = 4 is?

A) 5/3 B) 4/5 C) -3/5

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

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# 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.

# what is 5x+7=32

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