1,636.
In the diagram above, what is the size of angle ACB?
A.
40o
B.
50o
C.
60o
D.
80o
E.
100o
Correct answer is C
< ABC = 80° (alternate angles)
< ACB = 180° - (80° + 40°) = 60°
1,637.
Simplify \(\frac{9^{-\frac{1}{2}}}{27^{\frac{2}{3}}}\)
A.
1
B.
1/3
C.
1/9
D.
1/18
E.
1/27
Correct answer is E
\(\frac{9^{-\frac{1}{2}}}{27^{\frac{2}{3}}}\)
=\(\frac{3^{-1}}{3^2}\) = \(\frac{1}{27}\)
1,638.
In the diagram above O is the center of the circle, if ∠PAQ = 75o, what is the value of ∠PBQ?
A.
15o
B.
75o
C.
105o
D.
150o
E.
210o
Correct answer is C
< PBQ = 180° - 75° (opp angles of a cyclic quadrilateral)
= 105°
1,639.
A.
2
B.
7
C.
8
D.
9
E.
10
Correct answer is B
No explanation has been provided for this answer.
1,640.
A.
2
B.
7
C.
8
D.
9
E.
10
Correct answer is C
No explanation has been provided for this answer.
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