A ladder 6m long leans against a vertical wall at an angl...
A ladder 6m long leans against a vertical wall at an angle 53º to the horizontal. How high up the wall does the ladder reach?
3.611m
4.521m
4.792m
3.962m
Correct answer is C
Sin θ = opphyp → x6
cross multiply:
sin53º * 6 = x
0.7986 * 6
4.792m
Which of the following bearings is equivalent to S50°W?...
Make b the subject of the relation lb = 12 (a + b)h...
Find the length of a chord 3cm from the centre of a circle of radius 5cm ...
Two solid spheres have volumes 250cmo and 128cmo respectively. Find the ratio of their radii....
In the diagram |XY| = 12cm, |XZ| = 9cm, |ZN| = 3cm and ZY||NM, calculate |MY| ...
The inverse function f(x) = 3x + 4 is ...
A binary operation * on the set of rational numbers is defined as \(x \ast y = \frac{x^2 - y^2}...
If the sum of the roots of the equation (x - p)(2x + 1) = 0 is 1, find the value of x ...