Math 3 / AFM Exam Review Flashcards

1

Solve for x: -3(x-3)² + 5 = 17

7 +/- 3i
3 +/- 2i
3 +/- 7i
2 +/- 3i

2

Solve for x: x - 2 = sqrt(20 - 4x)

x = -4, 4
x = -6, 6
x = 4, -6
x = -4, 6

3

Does it fit her criteria?

No, it is too small.
No, it is too expensive.
No Way! Too small AND too expensive!
Yes! It meets all her criteria!

4

What is the domain?

-9 < x < 9
0 < x < 10.5
-10.5 < x < 10.5
0 < x < 9

5

Simplify

1/(x - 12)
x - 12
1/(x + 3)
x + 3

6

What is the shape of the distribution of runners of different age groups shown below?

skewed right
uniform
normal
skewed left

7

The radii of two concentric circles are 4 and 5; what is the length of the chord?

20
3
6
10

8

Factor: x³ - 27y³

(x2 - 9y2)(x + 6xy + 3y)
(x2 + 9y2)(x - 6xy + 3y)
(x + 3y)(x2 - 6xy + 9y2)
(x - 3y)(x2 + 6xy + 9y2)

9

Remember when adding mutually inclusive events you subtract out the overlapping probability!

24/45
26/45
14/45
16/45

10

A sector has a radius of 12in and a central ∠ measuring 98^o; what is the area of the sector?

246.3 in2
39.2 in2
123.2 in2
78.4 in2

11

Solve for x: e^x - 2x = 7 (hint: graph it!)

n/a
2.48
.98
2

12

Find Expected Value :)

$9,120
$6,720
$2,280
$13,560

13

What type of function goes to infinity fastest as x goes to infinity?

exponential
rational
quadratic
linear

14

Factor: 3x³ - 5x² + 15x - 25

(x2 + 5)(3x - 5)
(x - 5)(3x + 5)
(x + 5)(3x - 5)
(x2 - 5)(3x + 5)

15

Find the measure of angle v.

74o
48o
106o
16o

16

Let f(x) = 3x + 4 and g(x) = 2 - 3x. Find f(g(x)) and g(f(x)).

f(g(x)) = -10x +9 and g(f(x)) = -10x - 9
f(g(x)) = -9x + 10 and g(f(x)) = -9x - 10
f(g(x)) = 9x + 10 and g(f(x)) = 9x - 10
f(g(x)) = 10x + 9 and g(f(x)) = 10x - 9

17

Choose the BEST answer.

A
C
D
B

Math 3 / AFM Exam Review

Questions 17

Math 3 / AFM Exam Review

Questions 17