If the volume of a cube is (8 x 103)cm\(^3\), what is the surface area the cube?
2,400 cm\(^3\)
1,600 cm\(^3\)
120 cm\(^3\)
24 cm\(^3\)
16 cm\(^3\)
Correct answer is A
No explanation has been provided for this answer.
128.3m
108.8m
80.2m
57.7m
42.5m
Correct answer is E
to calculate for the high of the pole, we use sohcahtoa
Let the height of the pole be x.
Tan32º = \(\frac{opp}{adj}\)
Tan32º = \(\frac{x}{68}\)
x = Tan32º x 68 = 42.5m ( to 1 d.p)
Find the value of k such that \(t^2\) + kt + \(\frac{25}{4}\) is a perfect square
5
3
\(\frac{5}{2}\)
\(\frac{5}{4}\)
\(\frac{1}{5}\)
Correct answer is A
No explanation has been provided for this answer.
75
120
165
195
240
Correct answer is E
No explanation has been provided for this answer.
If n{A} = 6, n{B} = 5 and n{A ∩ B} = 2, find n{A ∪ B}
7
8
9
13
15
Correct answer is C
No explanation has been provided for this answer.