Simplify log101.5 + 3 log102 − log100.3
log104
log1040
log10-40
log104-
Correct answer is B
log101.5 + 3 log102 − log100.3
log101.5 + log1023 − log100.3
[log10(1.5 × 23) ÷ log100.3]
[log10(15/10 × 8 ) ÷ log10( 3/10)]
log10(15/10 × 8 × 10/3 )
log1040
Find the x and z intercepts of the graph of 3x - z \(\leq\) 9
(3, -9)
(-3, 9)
(-3, -9)
(-3, 0)
Correct answer is A
Starting from 3x − z \(\leq\) 9
x = 0, substitute the value of x (i.e. x = 0) into the equation 3x − z \(\leq\) 9
3(0) − z \(\leq\) 9
z \(\leq\) − 9
If z = 0
Then, 3x − 0 \(\leq\) 9
3x \(\leq\) 9
x \(\leq\) 3
Intercept of x and z i.e (x,z)
= (3, -9)
N36,000
N44,000
N40,000
N15,000
Correct answer is C
Total of their ages: 18 + 20 + 22 = 60
The second staff will get \(\frac{20}{60} \times 120,000\)
= N40,000.00K
In a town of 6250 inhabitants, there were 62 births during 1984. Find the percentage birth rate
3%
1.0%
2.5%
5.40%
Correct answer is B
Percentage birthrate = \(\frac{62}{6250} \times 100%\)
= \(\frac{6200}{6250}\)
= 0.992% \(\approx\) 1.0%.
In the diagram |XY| = 12cm, |XZ| = 9cm, |ZN| = 3cm and ZY||NM, calculate |MY|
3cm
4cm
5cm
6cm
Correct answer is B
\(\frac{|YM|}{|YX|} = \frac{|ZM|}{|ZX|}\)
\(\frac{|YM|}{12} = \frac{3}{9}\)
|YM| = 3 x \(\frac{12}{9}\)
|MY| = 4cm
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