Math 20 Pure Self-Assessment
Choose the correct answer to each question.
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Use the distance formula to answer the next question.
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In ΔABC,
C = 52º, BC = 48 and AC = 20. Find the area of the triangle to the nearest square unit.
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362
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378
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402
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421
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417
Which factor do the following trinomials have in common?
2x
2
+ x - 6
3x
2
+ 11x + 10
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x + 2
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x + 3
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x - 2
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2x + 3
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x + 3
Find the equation of the line containing the points (-2,5) and (4,-1).
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y = -3x + 1
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y = x + 3
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y = -x + 1
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y = -x + 3
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y = -x - 1
Simplify:
÷
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1
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-1
Simplify:
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18
When the denominator of
is rationalized the expression can be written in the form
. What is the value of B?
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-9
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-3
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3
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9
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13
Simplify:
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Using the Sine and Cosine Laws given above, answer the next question. What is an expression which correctly determines the length of (BC)
2
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8
2
+ 10
2
+ 2(8)(10)cosA
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8
2
+ 10
2
- 2(8)(10)cosA
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8
2
+ 10
2
+ 2(8)(10)cosB
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8
2
+ 10
2
- 2(8)(10)cosB
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8
2
+ 10
2
+ 2(8)(10)cosC
Solve for x:
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Use the distance formula to answer the next question.
How far is the point (5, -12) from the x-axis?
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-12
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5
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12
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13
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17
OK
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C = 52º, BC = 48 and AC = 20. Find the area of the triangle to the nearest square unit.
÷ 
is rationalized the expression can be written in the form 
. What is the value of B?
