The table shows the distribution of goals scored by 25 teams in a football competition. Calculate the probability that a team selected at randon scored either 4 or 7 goals.
The mean of 1, 3, 5, 7 and x is 4. Find the value of x
The equation of the line through the points (4,2) and (-8, -2) is 3y = px + q, where p and q are constants. Find the value of p.
If M and N are the points (-3, 8) and (5, -7) respectively, find |MN|
The angles of a polygon are x, 2x, 2x, (x + \(30^o\)), (x + \(20^o\)) and (x – \(10^o\)). Find the value of x
The surface area of a sphere is \(\frac{792}{7} cm^2\). Find, correct to the nearest whole number, its volume. [Take \(\pi = \frac{22}{7}\)]
The volume of a cylindrical tank, 10m high is 385 m\(^2\). Find the diameter of the tank. [Take \(\pi = \frac{22}{7}\)]
A curve is such that when y = 0, x = -2 or x = 3. Find the equation of the curve.
Simplify; \(\frac{2 – 18m^2}{1 + 3m}\)
If x : y : z = 3 : 3 : 4, evaluate \(\frac{9x + 3y}{6z – 2y}\)
If y + 2x = 4 and y – 3x = -1, find the value of (x + y)
If F = \(\frac{9}{5}\)C + 32, find C when F = 98.6
If \(\log_{10}\)(6x – 4) – \(\log_{10}\)2 = 1, solve for x.
There are 250 boys and 150 girls in a school, if 60% of the boys and 40% of the girls play football, what percentage of the school play football?
Simplify; 2\(\frac{1}{4} \times 3\frac{1}{2} \div 4 \frac{3}{8}\)
Find the value of x for which \(32_{four} = 22_x\)
Given that y varies inversely as the square of x. If x = 3 when y = 100, find the equation connecting x and y.
Evaluate: \((64^{\frac{1}{2}} + 125^{\frac{1}{3}})^2\)
Simplify: \(\sqrt{108} + \sqrt{125} – \sqrt{75}\)
Add 54 \(_{eight}\) and 67\(_{eight}\) giving your answers in base eight
From a point R, 300m north of P, a man walks eastwards to a place; Q which is 600m from P. Find the bearing of P from Q correct to the nearest degree