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GRADE 9-MATHEMATICS

Quiz by Theresa Mariz

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15 questions

Show answers

Q1
300s
Q2
300s
Q3
If y varies directly with x and y=15 when x=5, what is the value of y when x=8?
24
48
30
25
300s
Q4
If y varies inversely with x and y=12 when x=3, what is the value of y when x=2?
6
18
8
9
300s
Q5
If y varies directly with x and inversely with z, and y=10 when x=5 and z=2, what is the value of y when x=10 and z=4?
40
25
10
20
300s
Q6
300s
Q7
A ladder is leaning against a wall. If the ladder is 10 feet long and forms a 60 angle with the ground, how far up the wall does the ladder reach?
$10\sqrt{3}feet$
10 feet
$5\sqrt{3}feet$
5 feet
300s
Q8
Which of the following equations is used to find an angle in a triangle when the lengths of two sides and the angle between them are known?
Law of Cosines
Law of Sines
Pythagorean Theorem
Law of Tangents
300s
Q9
300s
Q10
A 10-foot ladder is placed against the wall of a building. The ladder touches the building 6 feet from its base. How far is the foot of the ladder from the building?
8 ft
10 ft
6 ft
7 ft
300s
Q11
Which law states that the sides of a triangle are proportional to the sines of their opposite angles?
Law of Cosines
Angle of Elevation
Law of Sines
Angle of Depression
300s
Q12
300s
Q13
300s
Q14
300s
Q15
300s

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