Ask a New Question
Menu

1. Simplify. 3x^2+ 5x-5x^2-4x+5-2

A.-8x^2-9x+3
B.2x^2+x+3
C.-2x^2-9x+3***
D.-2x^2+x+3

2. Add or Subtract.(8x – 2y) + (3x – 4y)
A.11x+8y
B.4x-y
C.11x-6y***
D.5x+2y

3.(5x^2-4x-1)-(-4x^2-4)
A.-9x^2-8x-1
B.9x^2-4x+3***
C.x^2-4x-3
D.9x^2+4x-3

4.The distance from Newtown to Old town on the highway is (6x^2 + 2x – 2) miles. Using the back roads, the distance is (5x^2 – 8x – 6) miles. How many miles shorter is the second route?
A.11x^2 + 10x – 8
B.–x^2 – 6x + 4
C.x^2 + 10x + 4
D.x^2 – 6x – 8
idk #4

5.write the expression using a single exponent. 7^5 times 7^6
A.49^30***
B.7^30
C.49^11
D.7^11

6. 6^a times 6^v
A.6^a+v
B.6^av
C.36^av***
D.36^a+v

7.2^8 over 2^7
A.2^1
B.2 and 8 over 7***
C.2^56
D.2^15

8.x^56 over x^24
A.x^80
B.x^23
C.x^32
D.none of these

9.write the result in scientific notation. (9 times 10^4)(8 times 10^6)
A.7.2times 10^25
B.1.7times 10^11
C.7.2times 10^11
D.1.7times 10^25

10.Simpify the expression. (-8x)times 3x^2
A.-5x^3
B.-24x^2
C.-24x^3
D.-5x^2

11.(-11z)^0
A.z
B.1
C.-11
D.-1

12.14^-4
A.1 over 14^4
B.-56
C.1 over 14
D.1 over 14^4

13.(-11z)^0
A.z
B.1
C.-11
D-1

14.14^-4
A.1/14^4
B.-56
C.1/14
D.1/146-4

10 answers

I copied your post with only those that are INCORRECT
I am using <-------- to show the correct answer

1. Simplify. 3x^2+ 5x-5x^2-4x+5-2
A.-8x^2-9x+3
B.2x^2+x+3
C.-2x^2-9x+3***
D.-2x^2+x+3 <---------

4.The distance from Newtown to Old town on the highway is (6x^2 + 2x – 2) miles. Using the back roads, the distance is (5x^2 – 8x – 6) miles. How many miles shorter is the second route?
A.11x^2 + 10x – 8
B.–x^2 – 6x + 4
C.x^2 + 10x + 4
D.x^2 – 6x – 8
You seem to imply that the back roads distance is shorter. If the second route is shorter then
5x^2 - 8x - 6 -(6x^2 + 2x - 2)
= -x^2 - 10x -4 , which is not one of the answers.
If the first is shorter, then x^2 + 10x + 4

5.write the expression using a single exponent. 7^5 times 7^6
A.49^30***
B.7^30
C.49^11
D.7^11 <---------

6. 6^a times 6^v
A.6^a+v <---------
B.6^av
C.36^av***
D.36^a+v

7.2^8 over 2^7
A.2^1 <---------
B.2 and 8 over 7***
C.2^56
D.2^15

8.x^56 over x^24
A.x^80
B.x^23
C.x^32 <-----------
D.none of these

9.write the result in scientific notation. (9 times 10^4)(8 times 10^6)
A.7.2times 10^25
B.1.7times 10^11
C.7.2times 10^11 <--------
D.1.7times 10^25
................ (9x10^4)(8x10^6) = 72x10^10 = 7.2x10^11

10.Simpify the expression. (-8x)times 3x^2
A.-5x^3
B.-24x^2
C.-24x^3 <----------
D.-5x^2

11.(-11z)^0
A.z
B.1 <----- (anything)^0 = 1
C.-11
D.-1

12.14^-4
A.1 over 14^4 <------
B.-56
C.1 over 14
D.1 over 14^4

13.(-11z)^0 ----------- same as #11
A.z
B.1
C.-11
D-1

14.14^-4 ------- same as #12
A.1/14^4 <--------
B.-56
C.1/14
D.1/146-4
looks like somebody has some major studying ahead of them
I have cheerleader practice, i don't have time to study that why i put my test on here.
If you don't have time to study, then you don't need to pass or keep your grades up for cheerleading.

Consider your priorities! Cheerleaders are has-beens after high school. Students are on the road to success.
most of those answers were wrong. i got 6/14. the real answers are
1.b
2.d
3.c
4.b
5.c
6.d
7.a
8.a
9.c
10.c
11.b
12.c
13.b
14.a
Guys _kylee17_ is correct c: thank you so much
_kylee17_ is correct! Ty!
Hey everyone! You can get his app called Photomath that allows you to take pictures of the math problem and it solves it for you and shows you the steps. I got 100% by using this app
YESSSSSS
Please do not encourage cheating. It is important to learn and understand math concepts instead of just finding ways to pass exams. Cheating only hurts yourself in the long run.