Study resources on Kenyaplex

Get ready-made curriculum aligned revision materials

Exam papers, notes, holiday assignments and topical questions – all aligned to the Kenyan curriculum.

Browse exam papers

Or go directly to:

Class notes Holiday assignments Topical questions Other resources

Solve for x given that:

Answers

Kavungya answered the question on September 23, 2019 at 08:00

Answer Attachments

Next: If Z varies jointly as x² and the square root of y and z = 18¾ when x = 5 and y = 9.Find...

Previous: In the figure below, PQ//SR,SPO=SOR = 90⁰, RS =7cm and QR = 4cm. Calculate the length of PQ correct to three significant figures.

View more Mathematics Questions and Answers | Return to Questions Index

Exams With Marking Schemes

Related Questions

If Z varies jointly as x² and the square root of y and z = 18¾ when x = 5 and y = 9.Find... (Solved)

If Z varies jointly as x² and the square root of y and z = 18¾ when x = 5 and y = 9.Find z when x = 3 and y=16

Date posted: September 23, 2019 . Answers (1)
Simplify: (Solved)

Simplify:

Date posted: September 23, 2019 . Answers (1)
Momanyi deposited sh. 24,000 in a fixed account for a period of 24 months .The bank pays compound interest on quarterly basis. At the... (Solved)

Momanyi deposited sh. 24,000 in a fixed account for a period of 24 months .The bank pays compound interest on quarterly basis. At the end of this period, Momanyi’s account had ksh. 64,200. Determine the rate at which interest is paid per annum.

Date posted: September 23, 2019 . Answers (1)
Given that sin²x+cos²x=1 solve for X in the equation Cosx + sinx = 1 for -180⁰=x=180⁰ (Solved)

Given that sin²x+cos²x=1 solve for X in the equation
Cosx + sinx = 1 for -180⁰≤x≤180⁰

Date posted: September 23, 2019 . Answers (1)
If X = 33.5 and y = 33.1 both being correct to one decimal place, calculate the maximum possible percentage error in X-y (Solved)

If X = 33.5 and y = 33.1 both being correct to one decimal place, calculate the maximum possible percentage error in X-y

Date posted: September 23, 2019 . Answers (1)
The expression px²+12x+4p+9x where p is a constant is a perfect square. Find the value of p. (Solved)

The expression px²+12x+4p+9x where p is a constant is a perfect square. Find the value of p.

Date posted: September 23, 2019 . Answers (1)
Use logarithms to 4 decimal places to evaluate: (Solved)

Use logarithms to 4 decimal places to evaluate:

Date posted: September 23, 2019 . Answers (1)
Simplify: (Solved)

Simplify:

Date posted: September 23, 2019 . Answers (1)
Evaluate: (Solved)

Evaluate:

Date posted: September 23, 2019 . Answers (1)
A tailor makes two types of garments A and B. Garment A requires 3m of material while B requires 2 ½ m of material. The tailor... (Solved)

A tailor makes two types of garments A and B. Garment A requires 3m of material while B
requires 2 ½ m of material. The tailor uses not more than 600m of material daily in making both garments. The tailor must make not more than 100 garments of type A and not less than 80 of type B each day.
(a) Write down four inequalities from this information.
b) Draw a graph for the inequalities shading the unwanted regions.
c)If the tailor makes a profit of sh.80 on garment A and a profit of sh. 60 on garment B, how many garments must she make in order to maximize her total profit if all the garments are sold at once.

Date posted: September 23, 2019 . Answers (1)
In a triangle ABC, AB=a ,AC=b, BN= 1/3BC . M is the midpoint of AC. AN and BM intersect at P. Express in terms... (Solved)

In a triangle ABC, AB=a ,AC=b, BN= 1/3BC . M is the midpoint of AC. AN and BM intersect at P.
Express in terms of a and b only the vectors;
(i) BC
(ii) AN
(iii) BM

Date posted: September 23, 2019 . Answers (1)
Use the trapezium rule to establish the area under the curve y= x² +x -6 over the interval 0= x =8 using 4 trapezia (Solved)

Use the trapezium rule to establish the area under the curve y= x² +x -6 over the interval 0≤ x ≤8 using 4 trapezia

Date posted: September 23, 2019 . Answers (1)
A coffee trader buys two grades of coffee at Sh. 80 and Sh. 100 per packet. Find the ratio at which she should mix them... (Solved)

A coffee trader buys two grades of coffee at Sh. 80 and Sh. 100 per packet. Find the ratio at which she should mix them so that by selling a packet of the mixture at a Sh. 120 a profit of 25% is realized.

Date posted: September 23, 2019 . Answers (1)
Simplify the following surds leaving your answer in the form a + b vc (Solved)

Simplify the following surds leaving your answer in the form a + b √c

Date posted: September 23, 2019 . Answers (1)
The third and the fifth terms of an arithmetic progression are 10 and -10 respectively. (a)Determine the first term and the common difference (b)The sum of the... (Solved)

The third and the fifth terms of an arithmetic progression are 10 and -10 respectively.
(a)Determine the first term and the common difference
(b)The sum of the first 15 terms.

Date posted: September 23, 2019 . Answers (1)
Make x the subject of the formula (Solved)

Make x the subject of the formula

Date posted: September 23, 2019 . Answers (1)
Simplify the following expression (Solved)

Simplify

Date posted: September 23, 2019 . Answers (1)
In the figure below OA = a and OB =b. M is the midpoint of OA and AN:NB2: 1 (a) Express in terms of a and... (Solved)

In the figure below OA = a and OB =b. M is the midpoint of OA and AN:NB2: 1

(a) Express in terms of a and b
(i)BA
(iii) BN
Iii ON
(b) Given that BX=hBM and OX=KON determine the values of h and k

Date posted: September 23, 2019 . Answers (1)
a) Given the transformation matrices and that transformation T1 followed by T2 can be replaced by a single transformation T. Write down the matrix T (b)Find... (Solved)

a) Given the transformation matrices and that transformation T1 followed by T2 can be replaced by a single transformation T.
Write down the matrix T
(b)Find the inverse of matrix T
(c) The points A’’(7,-11) B’’(-7,-13),C’’(8,8) are the images of points A,B,C and D respectively under transformation T1 followed by T2 write down the coordinate of A,B,C and D
(d) Find the co ordinates of A’B’C’ and D’ the images of A,B,C and D respectively under transformation T2

Date posted: September 23, 2019 . Answers (1)
The probability of a candidate passing her secondary examination is 4/5. If she passes his examination the probability of her joining the university is 2/3.... (Solved)

The probability of a candidate passing her secondary examination is 4/5. If she passes his examination the probability of her joining the university is 2/3. If she fails her examination, the probability of her joining the university is ¼ . If she joins the university the probability of her getting a job is 6/7 and if she does not join the university the probability of her getting a job is 2/9. find,
(a) The probability that she fails her examination
(b) Find the probability that she got a job after failing her secondary examination
(c) The probability that she joins university
(d) The probability that she did not get a job

Date posted: September 23, 2019 . Answers (1)