Unit Test — Unit test Answers
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A child designs a flag in the shape of a rhombus, as shown in the diagram below. Which expression can be used to determine the side length of the rhombus?
A
StartFraction 10 over cosine 30 degree EndFraction.
B
StartRoot 800 minus 800 cosine 30 degree EndRoot.
C
40 cosine 30 degree.
D
StartRoot 400 minus 40 cosine 30 degree EndRoot.
22
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Triangle XYZ has vertices X(–1, –1), Y(–2, 1), and Z(1, 2). What is the approximate measure of angle Z?
A
37.2°B
61.5°C
78.5°D
81.3°23
Trigonometric area formula: Area =
A
70.5 square unitsB
111.3 square unitsC
185.4 square unitsD
222.5 square units24
Which of the following is the equation of the function below?
A
y equal to 2 cosecant left-square-bracket 0 point 5 (x plus StartFraction pi over 2 EndFraction) right-square-bracket minus 1.
B
y equal to 2 cosecant left-square-bracket 2 (x plus StartFraction pi over 4 EndFraction) minus 1 right-square-bracket.
C
y equal to 0 point 5 cosecant left-square-bracket 0 point 5 (x plus StartFraction pi over 2 EndFraction) right-square-bracket minus 1.
D
y equal to 0 point 5 cosecant left-square-bracket 2 (x plus StartFraction pi over 4 EndFraction) right-square-bracket minus 1.
25
Heron’s formula: Area =
A
2 square metersB
7 square metersC
20 square metersD
78 square metersDid you find these answers helpful?
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