Algebra 2

1)which of the following is equal to
(2x/5 - 9)+9?
a) 2x/5
b) 5x/2
c) 2x - 45/5
d) (2x - 9)+ 45

2)the equation y - 100x + 2000 can be used to represent the monthly salary of a salesman, y,when he sales x computer systems. What is the salesman's monthly salary if sales no computer?
a)20
b)100
c)2000
d)2100

3) which equation is equivalent to 2x + 4a = 10?
a)x = 5/4a
b)x = 5 + 2a
c)x = 10 - 4a
d)x = 5 - 2a

4) Name the property of the real numbers illustrated by the equation
2 + (sr5 + 7) = (2 + sr5) + 7
a)distributive property
b)associative property of addition
c)associative property of multiplication
d)commutative property of multiplication

5) Name the property of the real numbers illustrated by the equation
pi * 11 = 11 * pi
a)closure property
b)commutative property of addition
c)associative of multiplication
d)commutative property of multiplication

6) Which algebraic expression models the given word phrase?
six times the sum of a and b
a)6(a + b)
b)a + b
c)6a + b
d)6(a - b)

7) John has $305, and he is spending $3 each day. Which algebraic expression this situation, where is d represents the number of days?
a)3d + 305
b)3 - 305d
c)305d + 3
d)305 - 3d

8) You are spending $55 for books, pencils, and erasers. Books (b) cost $7.50, pencils (p) cost $3, and erasers (e) cost $2 each. Which equation represents this situation?
a)7.50b + 2p + 3e = 55
b)2b + 7.50p + 3e = 55
c)7.50b + 3p + 2e = 55
d)3b + 7.50e + 2p = 55

9) solve the equation or formula for the indicated variable.
a = 4b5h, for h
a)h= a/b5
b)h= a/b5 - 4
c)h= 4a/b5
d)h= a/4b5

10) Which inequality represents the following inequality.
Seven fewer than a number is at least 14
a)x - 7 < 14
b)7 - x > equal to 14
c)x + 7 < equal to 14
d)x - 7 > equal to 14

11) Walter wants computer software that cost $129. he has $57 saved. If he saved a maximum of $15 a week, the following inequality can be used to find how many weeks it will take Walter to save enough money to buy the software?
15x + 57 = 129
What is the solution to the inequality?
a) x >equal to 4.8
b) x <equal to 4.8
c) x >equal to 12.4
d) x <equal ti 12.4

12) What is the solution to the compound inequality?
-8 <equal to 2x - 4 < 2
a)-6 <equal to x < 4
b)-2x <equal to x <-1
c) 0 < equal to x < 5
d)-2 < equal to x < 3

13) Solve the absolute value equation.
| 2x - 1 | = 3
a) x = 2 or x = -1
b) x = 1 or x = 2
c) x = 1 or x = -1
d) x = 1 or x = 4

14) which represents the solution to the absolute value equation?
3| 2x + 4 | - 1 = 11
a) x = 1 1/3 or x = -2 1/3
b) x = 1 1/3 or x = -4
c) x = 1 1/3 or x = 0
d) x = 0 or x = -4

15) Solve the inequality.
a)-17 <equal to x <equal to 10
b)-17 >equal to x > equal to 10
c) x <equal to -10 or x >equal to 10
d)-34 <equal to x <equal to 20

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  1. 1) |-4b - 8x| + |-1 - b2| + 2b ; b = 2
    that 2 is squared on the b2

    2) 9 |9 - 8x| = 2x + 3

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