Simplify: (1/2) (2x - 10) =
A. 2x + 5/2
B. x + 5
C. x - 20
D. x - 5
Name the property that is illustrated: a + (-a) = 0
A. Identity
B. Additive Inverse
C. Reflexive
D. Multiplicative Inverse
Solve: 2a + 1 = 2a - 5
A. a = 7
B. no solution
C. a = 1
D. a = -19/2
Simplify: 1/3(6a - 3)
A. 2a - 1
B. 2a - 19
C. 18a -1
D. 3a + 1
What letter represents the y-intercept in the slope-intercept equation?
A. x
B. y
C. m
D. b
2007-12-29 08:15:16 · 3 answers · asked by Donny 2 in Science & Mathematics ➔ Mathematics
(#1) (1/2) (2x - 10)=?
Multiply 1/2 with 2x and then -10, so we get
x-5 [Answer: D]
(#2) [Answer: B] Just remember this.
(#3) 2a + 1 = 2a - 5
Because 2a appears on both sides of the "=" sign, they cancel out, so we are left with 1=-5, so the answer is B- no solution.
(#4) Do the same thing as in #1, multiply 1/3 with 6a and then -3, so we get 2a -1 [Answer: A]
(#5) y=mx+b
m=slope
b=y-intercept, so your answer is D.
2007-12-29 08:23:12 · answer #1 · answered by ¿ /\/ 馬 ? 7 · 0⤊ 0⤋
Simplify: (1/2) (2x - 10) =
D. x - 5
Name the property that is illustrated: a + (-a) = 0
B. Additive Inverse
Solve: 2a + 1 = 2a - 5
B. no solution
Simplify: 1/3(6a - 3)
.A. 2a - 1
What letter represents the y-intercept in the slope-intercept equation?
D. b
2007-12-29 16:20:27 · answer #2 · answered by Anonymous · 1⤊ 1⤋
1. D
2. B
3. B
4. A
5. C
2007-12-29 16:18:55 · answer #3 · answered by Anonymous · 0⤊ 2⤋