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What value of k makes the given expression a perfect square ? m\(^2\) - 8m + k = 0
Find the root of the equation 2x\(^2\) - 3x - 2 = 0
The pie chart shows the monthly expenditure pf a public servant. The monthly expenditure on housing is twice that of school fees. How much does the worker spend on housing if his monthly income is N7200?
A chord of a circle radius \(\sqrt{3cm}\) subtends an angle of 60° on the circumference of he circle. Find the length of the chord
In the diagram, QTR is a straight line and < PQT = 30°. Find the sin of < PTR
TQ is tangent to circle XYTR, < YXT = 32o, RTQ = 40o. find < YTR
In the figure, PQST is a parallelogram and TSR is a straight line. If the area of \(\bigtriangleup\)QRS is 20cm2, find the area of the trapezium PQRT.
In diagram, PQ || ST and < PQR = 120º, < RST = 130º, find the angle marked x
The shaded area represents
In the venn diagram, the shaded region is?
For what value of x does 6 sin (2x - 25)o attain its maximum value in the range 0o \(\leq\) x \(\leq\) 180o
If x, y can take values from the set (1, 2, 3, 4), find the probability that the product of x and y is not greater than 6
In a recent zonal championship games involving 10 teams, teams X and Y were given probabilities \(\frac{2}{5}\) and \(\frac{1}{3}\) respectively of winning the gold in the football event. What is the probability that either team will win the gold?
A bag contains 16 red balls and 20 blue balls only. How many white balls must be added to the bag so that the probability of randomly picking a red ball is equal to \(\frac{2}{5}\)
Find the positive value of x if the standard deviation of the numbers 1, x + 1, 2x + 1 is \(\sqrt6\)
\(\begin{array}{c|c} \text{Average hourly earnings(N)} & 5 - 9 & 10 - 14 & 15 - 19 & 20 - 24\\ \hline \text{No. of workers} & 17 & 32 & 25 & 24\end{array}\)
Estimate the mode of the above frequency distribution