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Math 421A Quiz! Flashcards | StudBud
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Math 421A Quiz!
Math 421A Quiz!
23 terms
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#science #math #functions #calculus #trigonometry #algebra
Flashcards
23 cards
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Questions
23
Answers
1
Find the measure of the angle indicated to the nearest degree
17
44
60
30
2
Which line has a slope of zero?
Line 4
Line 1
Line 2
Line 3
3
How do we know if a number is a perfect square when using the PRIME FACTORIZATION (factor tree) method?
We plug it into our calculators
If prime factors can be divided EVENLY into THREE brackets
If prime factors can be divided EVENLY into TWO brackets
We guess!
4
Factor the following expression using the short trinomial method: x^2 - 7x + 12
(X +3) ( x + 4)
(X- 3) (x - 4)
(X + 6) (x + 2)
(X+3) (x - 4)
5
True or False: The DEPENDENT variable is represented by “x”
False
True
6
Solve for the missing side (answer to the nearest tenth)
6.46 cm
0.4 cm
15.7 cm
9.8 cm
7
What is the slope and y - intercept of this function?
M = 4 , M = -7
M = 4 , B = 7
M = 7 , B = -7
8
Expand the following expression using the distributive property: (2x + 3) (5x - 9)
10x^2 - 3x - 27
7x - 27
10x^2 + 3x - 27
10x^2 - 12x + 27
9
Expand the following expression using the FOIL method: (3x - 5) (6x - 2)
18x^2 - 36x + 10
9x^2 - 36x + 10
18x^2 - 17x - 10
15x^2 + 17x - 10
10
True or false: Factoring is the opposite of expanding (and vise versa)
True
False
11
Which of these numbers is IRRATIONAL?
0.950
67
0.7392…
7/9
12
What is happening at line segment CD?
Taking a break before moving quickly towards Winkler
Leaving Winkler
Moving quickly away from Winnipeg
Spending time in Winkler
13
Change the entire radical into a mixed radical
Empty choice
Empty choice
14
Lines are parallel if they…
The slopes are negative reciprocals of each other
Have the same y - intercept
Have the same slope
15
Which graph(s) represents a function?
Only B
Only C
A & B
B & C
16
Solve by elimination
(3, 4)
(1, -1)
(-1, -1)
(-3, -4)
17
What is the rate of change of this linear function?
1/4 km per minute
1/2 km per minute
2 km per minute
1 km per minute
18
For this triangle, what is it’s cosine ratio? (Cos= A/H)
17/15
15/17
8
8/17
19
How far is the plane from the airport? (Hint: we are looking for the HYPOTENUSE!)
333 m
1764 m
2813 m
939 m
20
Solve by changing into a radical
8
2
5.33
4
21
Factor the following expression using the GCF method: 56x - 14
7(8x- 2)
14( 4x - 1)
14(4x + 1)
8(7x + 2)
22
Solve by substitution
(14, 13)
(-1, 4)
(1, 4)
No solution
23
Change the equation into slope - intercept form (y =mx + b)
Y = 4x + 13
y - 5 = 4x + 8
Y = 4x - 13
