Mathematics looks at measurement, relationships, and properties of numbers and groups using numbers and symbols. Important topics in math include arithmetic, algebra, geometry, and calculus.
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Question 641: Which of the following lines is not parallel to the line 3y + 2x + 7 = 0?
Options:
A) 3y + 2x - 7 = 0
B) 9y + 6x + 17 = 0
C) 24y + 16x + 19 = 0
D) 3y - 2x + 7 = 0
E) 5y + 10x - 13 = 0
Show Answer
The correct answer is D .
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Question 642: simplify -
Options:
A) 3
B)
C) 7
D) -4
Show Answer
The correct answer is D .
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Question 643:
The shaded region above is represented by the equation
Options:
A) y ≤ 4x + 2
B) y ≥ 4x + 2
C) y ≤ -4x + 4
D) y ≤ 4x + 4
Show Answer
The correct answer is C .
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Question 644: If a = 1, b = 3, solve for x in the equation =
Options:
A)
B)
C)
D)
Show Answer
The correct answer is C .
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Question 645: The model height and range of heights 1.35, 1.25, 1.35, 1.40, 1.35, 1.50, 1.35, 1.50, and 1.20 are m and r respectively. Find m+2r.
Options:
A) 1.35
B) 1.65
C) 1.95
D) 3.00
Show Answer
The correct answer is C .
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Question 646:
Given that sin (5 − 28) = cos(3 − 50), O < 90
Find the value of
Options:
A) 14
B) 21
C) 32
D) 39
Show Answer
The correct answer is B .
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Question 647:
The equation of the line in the graph is
Options:
A) 3y = 3x + 12
B) 3y = 3x + 12
C) 3y = -4x + 12
D) 3y = -4x + 9
Show Answer
The correct answer is C .
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Question 648: If the hypotenuse of a right angle-triangle isosceles triangle is 2cm. What is the area of the triangle?
Options:
A) 1/√2 cm2
B) 1 cm2
C) √2 cm2
D) 2√2 cm2
Show Answer
The correct answer is B .
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Question 649:
In diagram, PQ || ST and < PQR = 120, < RST = 130, find the angle marked x
Options:
A) 50
B) 65
C) 70
D) 80
Show Answer
The correct answer is C .
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Question 650: If a car travels 120km on 45 litres of petrol, how much petrol is needed for a journey of 600km?
Options:
A) 720 litres
B) 160 litres
C) 225 litres
D) 960 litres
Show Answer
The correct answer is C .