Posted by Brittany on Saturday, April 2, 2011 at 7:04pm.
Very Important I can get someone to check these for me... I have to get an A, and I was wondering if someone could double check these for me. I am about 95% sure they are right, but just need a fresh set of eyes. I know I've been sending alot, but I really need them to be double checked. Thanks so much!! :)
1. Simplify 2e^2+9e+3+3e^2-5e-2.
My answer was A. 5e^2+4e+1
2. Find the degree of 1+2x^4+2x^2
My answer was A. 4.
3. Find the degree of 7x+2
My answer was D. 1.
4. Write the variable expression. It is 4 black squares,4 skinny white rectangles, and 19 little white squares.
My answer was D. -4x^2+4x+19
5. Simplify 4q^2-5q-1-8q^2+8q-9
My answer was B. 12q^2+3q-10
6. Subtract (7x-5y) - (2x+4y)
My answer was C. 5x-9y
7. Add (6x+2y) + (3x-4y)
My answer was C. 9x-2y
8. Add (-4x-2y) + (7x-5y)
My answer was B. 11x-7y
9. Subtract (-4x^5 -5x) - (7x-5-8x^5)
A. 4x^5 -12x+5
C. -11x^5 -13x-5
D. -13x^5 +2x-5
My answer was A. 4x^5 -12x+5
10. Subtract (4x+2y) - (8x-3y)
My answer was D. -4x+5y
11. Simplify 5x^4(7x+5)
My answer was 35x^5+25x^4
12. What multiplication expression is shown by the model? It has two columns down, 2 big squares down and three below that. So its 10 squares all together.
My answer was A. 2x(2x+3). This one
I am 100% sure on, but still.
13. Simplify x^6 times x^4
My answer was A. x^10
14. Simplify -4x(2x^4+2)
My answer was D. -8x^5-8x
15. Find the area of the figure. The length is 4x^2+2x and the width is 3x.
My answer was D. 12x^3+6x^2
Urgent Math please check - PsyDAG, Sunday, April 3, 2011 at 11:24am
1, 2, 3. Correct
Don't know about 4.
5. It seems like you might have a typo. I get
6, 7. Correct
8. Typo? I get 3x-7y.
9, 10, 11. Correct
12. Don't have model.
13, 14, 15. Correct.
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