6
7
8
9
Correct answer is C
1 + 3 + 5 + 7 + 9 + 11 + 13 + 15 = 64
where 64 = 8^2
That is P is 8
If P = {3, 7, 11, 13} and Q = {2, 4, 8, 16}, which of the following is correct
\((P\cap Q)^l={2, 3, 4, 13}\)
\(n(P\cup Q)=4\)
\(P\cup Q = \emptyset\)
\(P\cap Q = \emptyset\)
Correct answer is D
No explanation has been provided for this answer.
Evaluate \(\sqrt{20}\times (\sqrt{5})^3\)
10
20
25
50
Correct answer is D
\(\sqrt{20}\times (\sqrt{5})^3\\
2\sqrt{5}\times \sqrt{5}\times \sqrt{5}\times \sqrt{5}=2\times 5\times 5 = 50\)
Three of the angles of a hexagon are each Xo. The others are each 3Xo. Find X
30o
40o
60o
80o
120o
Correct answer is C
No explanation has been provided for this answer.
4
9
15
16
144
Correct answer is D
No explanation has been provided for this answer.
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