Recent content by drop

Re: Please check my answers - 8 Yep, that was a big typo, sorry. Actually what I had written on my paper was: 14x^3 - 31x^2 + 15x Would that answer be correct?

Re: Please check my answers - 8 OH yeah, haha I knew that :P Thanks!

Re: Please check my answers - 8 Can you tell me what I did wrong in 3a? I took f(x) minus g(x) and wrote it like this: 7x^2 - 5x + 0 0x^2 + 2x - 3 7x^2 - 7x - 3 and thank you for that link.

Re: Please check my answers - 2 Thank you ! :)

Re: Please check my answers - 6 x = -b/(2a) x = -(-8)/2(-2) x = 8/-4 = -2 I think I forgot to substitute -2 for x to find out y, thanks for pointing that out! (I was thinking of x intercepts) After solving for y, I got (-2,11) Thank you

Re: Please check my answers - 1 Thank you!

Basically I don't know anyone in real life that can help me with this, so I need help checking to see if my answers are correct :) Part B 2) Given the functions f(X) = 7x^2 - 5x and g(x) = 2x - 3 determine and simplify the following: a) (f-g)(x) My Answer: 7x^2 - 7x - 3 b) (f - g)(2) My...

Basically I don't know anyone in real life that can help me with this, so I need help checking to see if my answers are correct :) PART A 1) Using a graphing utility solve the following system of linear equations. Round your answer to the nearest hundredth. y = -4x+2 x - 2y = 10 My answer: x...

Basically I don't know anyone in real life that can help me with this, so I need help checking to see if my answers are correct :) PART A 3) Solve 2x^2 + 4x = 15 by using the quadratic formula. x = -1 +/- 2sqr34 4) Determine whether the given pairs of lines are parallel, perpendicular, or...

Basically I don't know anyone in real life that can help me with this, so I need help checking to see if my answers are correct :) PART A 5) Express .00024 in Sci Notation My answer: 2.4 x 10^-4 6) Factor the following completely: 3x^3 - 18x^2 + 24x My Answer: (3x)(x - 4)(x - 2)

Basically I don't know anyone in real life that can help me with this, so I need help checking to see if my answers are correct :) PART A 7) Simplify (5x^3yz^2)^2(-3x^3y^4z) My answer: -75x^9y^6z^5 8) Simplify the problem below using positive exponents only. 8a^-2b^3c^4 18a^5b^-3c My...

Basically I don't know anyone in real life that can help me with this, so I need help checking to see if my answers are correct :) PART A 9) Solve for all X: |2x-5| + 3 = 18 My Answer: x = 10, x = -5 10) Subtract and simplify: (5x^2 - 3x + 8) - (-4x^2 - x + 10) My Answer: 9x^2 - 2x - 2

Basically I don't know anyone in real life that can help me with this, so I need help checking to see if my answers are correct :) PART A 11) Find the vertex of f(x) = -2x^2 - 8x + 3 algebraically. My Answer: (-2,0) 12) Multiply and simplify: (6 - 5i) (4 + 3i) My Answer: 39 - 2i

Basically I don't know anyone in real life that can help me with this, so I need help checking to see if my answers are correct :) Part B 1) A golfer hits a nice iron shot and the ball's height above the ground is given by h(t) = -16t^2 + 80t, where t is the time in seconds since the ball was...