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Sn = 12/6(2x1500 +(12-1) 500)
= 6(3000 + 5500)
= 6 x 8500
= 51,000
Kavungya answered the question on September 18, 2019 at 13:51
- The velocity of a particle moving in a straight line is given by the equation ds/dt = -4t + 2 where s is adisplacement from...(Solved)
The velocity of a particle moving in a straight line is given by the equation ds/dt = -4t + 2 where s is a displacement from the origin in meters and t is time of motion.
a) Find when the particle is instantaneously at rest.
b) Given that S = 2 when t = o find a in terms of t
c) Find acceleration of the particle
d) At what instant shall displacement of the particle be O?
Date posted: September 18, 2019. Answers (1)
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divided...(Solved)
Triangle OPQ is such that OP = p and OQ = q point R divides OP in the ratio 1:3 and a point S
divided PQ in the ratio 5:2 OS and RQ meet at T.
a) Express OS and QR in term of p an q.
b) Given that OT = KOS. Express OT in terms of K, p and q
c) (i) Given also that RT = h RQ, express OT interms of h , p and q
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d) State the ratio in which Q divided RT.
Date posted: September 18, 2019. Answers (1)
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a) Find the height VO...(Solved)
The figure below shows a right pyramid on a square base ABCD of sides 4cm VA =VB = VC=VD = 8cm
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Date posted: September 18, 2019. Answers (1)
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Date posted: September 18, 2019. Answers (1)
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Date posted: September 18, 2019. Answers (1)
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Date posted: September 18, 2019. Answers (1)
- ABCD is a trapezium in which angle B = angle C=90oCalculate the length DC hence the area of the trapezium. (Solved)
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Date posted: September 18, 2019. Answers (1)
- In the circle below chords PQ and RS intersect internally at X. Given that RX = 8cm,XS = 3cm
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(Solved)
In the circle below chords PQ and RS intersect internally at X. Given that RX = 8cm,XS = 3cm
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Date posted: September 18, 2019. Answers (1)
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An investor deposited 40,000 in a bank compounded at the rate of R p.a semi-annually for 2 years
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Date posted: September 18, 2019. Answers (1)
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4x2 + 4y2 + 56x – 104y – 152 = 0 (Solved)
Find the radius and centre of a circle whose equation is:
4x2 + 4y2 + 56x – 104y – 152 = 0
Date posted: September 18, 2019. Answers (1)
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b) Locate locus of a point...(Solved)
a) Construct a parallelogram PQRS such that PQ = 8cm PS = 4.5cm and angle QPS = 60o
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Date posted: September 18, 2019. Answers (1)
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Date posted: September 18, 2019. Answers (1)
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Using the expansion solve ( 1.98)6 correct to 4 d.p(Solved)
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Using the expansion solve ( 1.98)6 correct to 4 d.p
Date posted: September 18, 2019. Answers (1)
- Find without using mathematical tables or calculator, the value of x which satisfy the equation.
Log2 (x2 – 9) = 3 log2 2 +1
(Solved)
Find without using mathematical tables or calculator, the value of x which satisfy the equation.
Log2 (x2 – 9) = 3 log2 2 +1
Date posted: September 18, 2019. Answers (1)
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Date posted: September 18, 2019. Answers (1)
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Date posted: September 18, 2019. Answers (1)
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Date posted: September 18, 2019. Answers (1)
- A manager wishes to hire two types of machine. He considers the following facts:
...(Solved)
A manager wishes to hire two types of machine. He considers the following facts:
Machine A Machine B
Floor space 2m3 3 m3
No. of men required to operate 4 3
He has a maximum of 24m2 of floor space and a maximum of 36 men available. In addition he is not allowed to hire more machines of type B than of type A.
(a)If he hires x machines of type A and y machines of type B, write down all the inequalities
that satisfy the above conditions.
(b)Represent the inequalities on the grid and shade the unwanted region.
(c)If the profit from machine A is sh. 4 per hour and that from using B is shs.8 per hour. What
number of machine of each type should the manager choose to give the maximum profit
Date posted: September 18, 2019. Answers (1)
- The table below shows marks scored by 100 form four students in a mathematics examination.
a) Draw an ogive to represent the above information.
(b) Using your...(Solved)
The table below shows marks scored by 100 form four students in a mathematics examination.
a) Draw an ogive to represent the above information.
(b) Using your graph, estimate:
(i) the median
(ii) the quartile deviation
(c) If the pass mark is 45%, how many students passed?
Date posted: September 18, 2019. Answers (1)
- Rates of tax in operation in 2010 are given in the table below:-K£ p.a Rate of tax %1-5208 105209-9744 259745-14292 2014293-18840 15Over 18840 30(a)Mr. Lukandu pays sh. 5,400 as P.A.Y.E...(Solved)
Rates of tax in operation in 2010 are given in the table below:-
K£ p.a..............Rate of tax %
1-5208.................10
5209-9744..............25
9745-14292.............20
14293-18840............15
Over 18840.............30
(a)Mr. Lukandu pays sh. 5,400 as P.A.Y.E monthly. He was entitled to house allowances of Ksh. 9,000 p.m and getting a monthly tax relief of sh. 1093. Calculate his monthly basic salary.
(b)Mr. Lukandu other deductions per month were;
Co-operative society contribution sh. 2,000
Loan payment sh. 2,500
Calculate his net salary per month.
Date posted: September 18, 2019. Answers (1)