From the graph determine the roots of the equation y = 2x2 + x - 6
-3, 4
-2, -6
-2, 1.5
-1, 1
2, 1.5
Correct answer is C
No explanation has been provided for this answer.
Find the 4th term of an A.P, whose first term is 2 and the common difference is 0.5
0.5
2.5
3.5
4
4.5
Correct answer is C
\(U_{n} = a + (n - 1)d\)
\(U_{4} = 2 + (4 - 1) \times 0.5\)
= \(2 + 1.5\)
= 3.5
1.17%
6.38%
7.44%
8.035%
9.00%
Correct answer is C
%error = \(\frac{1.21 - 1.12}{1.21} \times 100%\)
= \(\frac{9}{121} \times 100%\)
= 7.44%
1.18
1.31
9.03
9.44
9.46
Correct answer is E
log x = \(\bar{2}.3675\) ; log y = 0.9750
\(x = 10^{\bar{2}.3675} = 0.02331 \)
\(y = 10^{0.9750} = 9.441 \)
\(x + y = 9.4641 \approxeq 9.46\)
Evaluate using the logarithm table, log(0.65)2
1.6258
0.6272
0.6258
3.6258
1.6272
Correct answer is D
log(0.65)2 = 2log(0.65) but log0.65 = 1.8129
∴2 x 1.8129 = 3.6258
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