Life cycle of black fly is from

The size of angle AOB is equal to 132 degrees and the size of angle COD is equal to 141 degrees. Find the size of angle DOB.

In an examination, 35 out of 125 students failed. What percentage of the students passed?

Choose the word that best completes the sentence:

We need to make sure that there is enough _________ accommodation to house all the delegates.

The next term in the sequence 1, 4, 10, 19, 31, is?

The quantity x varies inversely as y, and y varies directly as the square of z. If z is halved, then the value of x is

A ball has diameter 20cm. What is the volume of the ball, correct to two significant figures?

If two triangles are similar, then

I. the corresponding angles are similar
II. the areas of the triangles are in the same ratio as the lengths of the corresponding sides.
III. the triangles are congruent.
IV. the corresponding sides are proportional.

Which of the above statements are CORRECT?

Two-third of a certain number is equal to the sum of three-seventh and one-third. Find the number.

By solving equation √x + 3 = 0, value of 'x' will be

The lower chambers of the heart are called

An exothermic reaction is one which involves

Choose the word that best completes the sentence:

We're fighting for the _______ abolition of the death penalty.

The table below gives the distribution of the ages (in years) of 30 students in a school club.

Calculate the mean.

Jennifer and Joseph together have $90. If Jennifer gives Joseph $20 then Joseph will have twice as much money as Jennifer. original amount of money Jennifer and Joseph have is

A square pyramid and a cuboid have the same height and the areas of their bases are equal. Find the ratio of their volumes

House fly are examples of vectors

If an object is placed at a height of 10 m above the ground at a stationary point. It possess what type of energy?

Calculate the mean of the following numbers.
10, 2, 3, 6, and 4

Primary colors of light are

Cholera is treated by

If 45% of the Nigerian naira (N) is equal to 35% of the American dollar ($), the conversion rate of  $1 =

The mean of the prime number 1 and 20 is 77/8. When another prime number is added, the mean becomes 40/3 find the new prime number

What fraction of two weeks is four days?

Find the HCF of 18a²y and 27x²y³.

Simplify

54x²y ÷ 3xy

The word best express the meaning of BEMOAN

There are how many seasons in west africa

Typhoid fever is prevented by drinking boiled water

When the monthly budget for a household is displayed on a pie chart, the sectorial angles for the various items of expenditure are as follows:

Food (162°),
Education (90°),
Transportation (36°),
Clothing (x°), and
miscellaneous (18°).

If £900 is the amount budgeted for clothing, then the education budget is

Which is the 'longest pause'?

If n is an odd integer, which of the following is also odd?

A cube has a total surface area of the six faces equal to 150 square feet. What is the volume of the cube?

The right ventricle and the right  auricle has an opening between them called

A reception hall is arranged such that the first row contains 10 seats and each successive row has two more seats than the preceding row.

The total number of seats in the first twelve rows is

Convert 71_ten to a number in base two.

Vectors are not infected by the germs they carry

A box contains purple, green and yellow balls in the ratio 8 : 3 : 2.
There are 10 yellow  balls. If 10 green and 10 purple balls are removed from the bag, find the new ratio.

Express in base two the square of 101_two.

Calculate the area of the triangle drawn below.

Subtract the polynomials: (9 x - 6) - (- 5x + 7) 

A square field has a perimeter of 48 m. Find the area of the field.

Which of the following word best express the meaning of HAGGLE

If X% of 240 equals 12, find X