(x - y)(1 - a)
(x + y)(1 + a)
(x + y)(1 - a)
(x - y)(1 + a)
Correct answer is C
x + y - ax = ay
= (x + y) -a(x + y) = (x + y)(1 - a)
Simplify 0.000215 x 0.000028 and express your answer in standard form
6.03 x 109
6.02 x 109
6.03 x 10-9
6.02 x 10-9
Correct answer is D
0.000215215 x 0.000028
= 215 x 10-4 x 28 x 10-4
= 215 x 28 x 10-6-6
= 6020 x 10-12
= 6.020 x 103 x 10-12
= 6.02 x 103 - 12
= 6.02 x 10-9
i only
i and ii only
ii and iii only
i, ii and iii
Correct answer is B
No explanation has been provided for this answer.
\(\frac{3}{10}\)
\(\frac{2}{9}\)
\(\frac{5}{18}\)
\(\frac{7}{10}\)
Correct answer is D
\(\frac{\text{education}}{\text{graduates}} = \frac{108}{360} \times 4320\)
= 1296
Pr(Education) = \(\frac{1296}{4320} = \frac{1}{10}\)
pr(not education) = 1 - \(\frac{3}{10}\)
= \(\frac{10 - 3}{10}\)
= \(\frac{7}{10}\)
840
864
920
960
Correct answer is B
\(\frac{\text{science}}{\text{graduates}}\) = \(\frac{\theta}{360}\) x 4320
where \(\theta\) + 100 + 80 + 108 = 360
\(\theta\) = 360 - 288 = 360
\(\frac{\text{science}}{\text{graduates}}\) = \(\frac{72}{360} \times 4320\)
= 864
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