Given that sin (5x-28)° = cos (3x-50)", 0°≤ x ≤ 90°, find the value of x.
In the diagram, MNR is a tangent to the circle centre O at N and ∠NOS = 108°. Find ∠OSN
Mrs Gabriel is pregnant. The probability that she will give birth to a girl is 1/2 and with blue eyes is 1/4. What is the probability that she will give birth to a girl with blue eyes?
The mean of a set of 10 numbers is 56. If the mean of the first nine numbers is 55, find the 10th number.
