# Questions and answers: Mathematics

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**754 Questions** View: All | Solved | Unsolved

##### Search Results...

- Why are premiums paid in advance?
**(Solved)**Why are premiums paid in advance?

Date posted: December 27, 2018. Answers (1)

- Express 8,200,000 in standard form
**(Solved)**Express 8,200,000 in standard form

Date posted: December 17, 2018. Answers (1)

- Explain what are quadrilaterals giving an example
**(Solved)**Explain what are quadrilaterals giving an example

Date posted: December 8, 2018. Answers (1)

- What is the supplementary angle to 130 degrees
**(Solved)**What is the supplementary angle to 130 degrees

Date posted: December 8, 2018. Answers (1)

- If the mass of a tin is given as 2kg to the nearest 10g,find the percentage error
**(Solved)**If the mass of a tin is given as 2kg to the nearest 10g,find the percentage error

Date posted: December 8, 2018. Answers (1)

- Define surds and give an example
**(Solved)**Explain what are surds in mathematics giving an example of a surd

Date posted: December 8, 2018. Answers (1)

- Explain the difference between cardinal numbers and ordinal numbers
**(Solved)**Explain the difference between cardinal numbers and ordinal numbers.

Date posted: December 8, 2018. Answers (1)

- What is the area of a square whose diagonal is 10 cm?
**(Solved)**What is the area of a square whose diagonal is 10 cm?

Date posted: November 23, 2018. Answers (1)

- If £100 is invested at compound interest of 8% per annum,determine (a). The value after 10 years (b) The time correct to the nearest year it takes to reach more than £300.
**(Solved)**If £100 is invested at compound interest of 8% per annum,determine (a). The value after 10 years (b). The time correct to the nearest year it takes to reach more than £300.

Date posted: October 21, 2018. Answers (1)

- Find the unit vector perpendicular to the vectors a=2i+j+k, b+3i-j+2k. Also find the angle between a and b
**(Solved)**Find the unit vector perpendicular to the vectors a=2i+j+k b+3i-j+2k Also find the angle between a and b

Date posted: October 13, 2018. Answers (1)

- What are the measures of deviation?
**(Solved)**What are the measures of deviation?

Date posted: October 9, 2018. Answers (1)

- A committee of 8 lecturers is to formed out of 6 science, 8 arts teachers and a physical instructor. Determine the number of ways the committee can be formed if:
**(Solved)**A committee of 8 lecturers is to formed out of 6 science, 8 arts teachers and a physical instructor. Determine the number of ways the committee can be formed if: I) Any teacher can be included in the committee II) There should be 3 science and 4 arts teachers in the committee

Date posted: October 1, 2018. Answers (1)

- Find the number of sides of a polygon whose interior angle is 165 degrees
**(Solved)**Find the number of sides of a polygon whose interior angle is 165 degrees

Date posted: September 9, 2018. Answers (1)

- In arithmetic the 8th term is twice the 4th term and 20th term is 40. find the common difference and the sum of 8th to...
**(Solved)**In arithmetic the 8th term is twice the 4th term and 20th term is 40. find the common difference and the sum of 8th to 20 term inclusive. 2, The house on one side of a major street are a sign odd numbers starting with 11. If the sum of the numbering is 155. find the number of houses along the street

Date posted: September 5, 2018. Answers (1)

- Find the least number which if multiplied by 40, makes it a perfect square?
**(Solved)**The knowledge of both indices and square and square roots can be applied

Date posted: August 30, 2018. Answers (1)

- Given the coordinates of A and B as (4,2) and (8,2) respectively, find the equation of the perpendicular bisector of AB
**(Solved)**Given the coordinates of A and B as (4,2) and (8,2) respectively, find the equation of the perpendicular bisector of AB.

Date posted: August 30, 2018. Answers (1)

- Sixteen men working at a rate of nine hours a day can complete a piece of work in 14 days. How many more men working...
**(Solved)**Sixteen men working at a rate of nine hours a day can complete a piece of work in 14 days. How many more men working at a rate of 7 hours a day would complete the same job in 12 days?

Date posted: August 29, 2018. Answers (1)

- Find the ratio x:y in:
(a). x=¾y
(b). 2x=6y
**(Solved)**Find the ratio x:y in: (a). x=¾y (b). 2x=6y

Date posted: August 23, 2018. Answers (1)

- Two girls are running and the first girl is ahead by 15m. The first girl is running at 8m/s while the second girl is running at...
**(Solved)**Two girls are running and the first girl is ahead by 15m. The first girl is running at 8m/s while the second girl is running at 12m/s. At what distance will the second girl over take the first girl?

Date posted: August 15, 2018. Answers (1)

- A manufacturer makes two products, product Q and product M. The cost of making 15 units of product Q and 10 units of product M is sh...
**(Solved)**A manufacturer makes two products, product Q and product M. The cost of making 15 units of product Q and 10 units of product M is sh 600. The cost of making 5 units of product Q and 8 units of product M is sh 340. Determine the cost of making each product.

Date posted: August 8, 2018. Answers (1)

- A carpenter wishes to make a ladder with 15 cross pieces. The cross pieces are diminished uniformly in lengths from 67cm at the bottom to...
**(Solved)**A carpenter wishes to make a ladder with 15 cross pieces. The cross pieces are diminished uniformly in lengths from 67cm at the bottom to 32 at the to. Calculate the length in cm of the seventh cross piece

Date posted: July 11, 2018. Answers (1)

- Solve the equation using quadratic formula x^2-3x+2=0
**(Solved)**Solve the equation using quadratic formula x^2-3x+2=0

Date posted: July 3, 2018. Answers (1)

- Solve using factor method 4x^2+20x+9=0
**(Solved)**Solve using factor method 4x^2+20x+9=0

Date posted: July 3, 2018. Answers (1)

- Solve the simultaneous equation xy=160, Log x- 3log y=1
**(Solved)**Solve the simultaneous equation xy=160 Log x- 3log y=1

Date posted: July 3, 2018. Answers (1)

- If for a random variable x, the E(x) is given as 0.24Find E(2x+3)
**(Solved)**If for a random variable x, the E(x) is given as 0.24 Find E(2x+3)

Date posted: June 25, 2018. Answers (1)

- Convert the polar point (2,p/3) into Cartesian coordinate
**(Solved)**Convert the polar point (2,p/3) into Cartesian coordinate.

Date posted: June 25, 2018. Answers (1)

- Peter owns a small farm and grows mangoes and pineapples.After one harvest she increased her mango supply by 50% but also sold half of her pineapples.Given...
**(Solved)**Peter owns a small farm and grows mangoes and pineapples.After one harvest she increased her mango supply by 50% but also sold half of her pineapples.Given that she has a net loss of 10 fruits after the harvest and that she has the same number of mangoes as pineapples after the harvest,how much fruit did she initially have?

Date posted: May 31, 2018. Answers (1)

- A box contains 6 blue plates and 4 yellow plates, 2 plates are picked from the box one after the other without replacement a) Draw the probability...
**(Solved)**A box contains 6 blue plates and 4 yellow plates, 2 plates are picked from the box one after the other without replacement a) Draw the probability tree? b) what is the probability of picking : 1)the first plate blue and the second plate yellow 2)both plates yellow 3)1 blue plate and one yellow plate 4)2 plates of the same color. 5)At least 1 blue plate.

Date posted: May 12, 2018. Answers (1)

- State and briefly describe five methods of probability sampling.
**(Solved)**State and briefly describe five methods of probability sampling.

Date posted: April 27, 2018. Answers (1)

- State the steps involved in solving linear problems using the graphical method.
**(Solved)**State the steps involved in solving linear problems using the graphical method.

Date posted: April 27, 2018. Answers (1)