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SAT Math
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Review for college algebra final
Flashcards
20 cards
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Practice quiz
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Questions
20
Answers
1
Simplify (5x
2
-6x-7)-(8x
2
+3x-2)
13x2+9x+9
-3x2-3x-9
13x2-3x-9
-3x2-9x-5
2
What are the x-intercepts for the following quadratic equation? y=x
2
+8x+16
(4, 0), (-4, 0)
(4, 0)
(-1, 0), (1, 0)
(-4, 0)
3
Simplify the following:
A
D
B
C
4
Two consecutive integers have a sum of 25. What is the smallest integer?
11
13
12
15
5
Simplify the following. Your answer should only have positive exponents.
D
B
A
C
6
The scores on 3 tests were 90, 91, & 98. What does the 4th need to be to average exactly 94?
99
not possible
97
98
7
Find the slope of the line through the pair of points: (1, -8), (-8, 17)
25/9
-1/4
-25/9
9/25
8
Solve the equation 3+7(4x-7)=-242
{12}
{8}
{-7}
{all real numbers}
9
Solve the equation by factoring x
2
+10x=-25
{5}
{10, 25}
{1, 0}
{-5}
10
Simplify -7(5i)(-5-7i)
-245+175i
-175+125i
245+175i
-245-175i
11
Solve the system:
(8, -3)
(-8, -3)
(-5, -3)
(-3, -5)
12
Solve the system of equations
(2, 8)
(-2, -4)
(2, -4)
No solution
13
Solve the equation |x+8|=10
{-2, -18}
{-8, -10}
{8,10}
{2, -18}
14
Solve the inequality: -448>8(8b+8)
b>-8
No solution
b>-21
b<-8
15
What is the mode of these numbers? 1, 1, 2, 5, 5, 5, 6, 6, 6, 6, 7
There are two of them
6
1
5
16
Simplify 3√27-2√3
23√3
5√3
7√3
14√3
17
What are the x-intercepts for the following quadratic equation? y=x
2
-9
(3, 0)
(1, 0), (-1, 0)
(3, 0), (-3, 0)
(-3, 0)
18
68 is what percent of 122?
46.6%
179.4%
0.56%
55.7%
19
Four more than a number is six less than triple the number. The number is
7
-5
5
9
20
Find the midpoint of the line segment with the given endpoints (10, 2) (-9, -6)
(-28, -10)
(4, -15/2)
(1/2, -2)
(6, 5)
