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- A circle whose equation is (x – 1)2 + (y – k)2 = 10 passes through point (2,5). Find the coordinates of the two...(Solved)
A circle whose equation is (x – 1)2 + (y – k)2 = 10 passes through point (2,5). Find the coordinates of the two possible centres of the circle.
Date posted: September 20, 2019. Answers (1)
- Find B given that A2 = (A + B).(Solved)
If matrix A 
. Find B given that A2 = (A + B).
Date posted: September 20, 2019. Answers (1)
- Make r the subject in the formular:(Solved)
Make r the subject in the formular:
Date posted: September 20, 2019. Answers (1)
- Evaluate without using mathematical tables or calculators:
2 Log105 – ½ Log1016 + 2 Log1040(Solved)
Evaluate without using mathematical tables or calculators:
2 Log105 – ½ Log1016 + 2 Log1040
Date posted: September 20, 2019. Answers (1)
- Expand (2 + 1/5x)8 up to the term in x3. Use your expansion to evaluate (2.04)8 correct to 4 decimal places.(Solved)
Expand (2 + 1/5x)8 up to the term in x3. Use your expansion to evaluate (2.04)8 correct to 4 decimal places.
Date posted: September 20, 2019. Answers (1)
- Expand the expression:(3v2 + 5) (3v2 – 5). Hence work out the following:
(Solved)
Expand the expression:(3√2 + 5) (3√2 – 5). Hence work out the following:
Date posted: September 20, 2019. Answers (1)
- Use logarithm table to evaluate:(Solved)
Use logarithm table to evaluate:
Date posted: September 20, 2019. Answers (1)
- The curve y =3x2- 6x + 6 passes through the point s ( 2,3)(a)Determine the gradient function of the curve.(b) Find the co-ordinates of...(Solved)
The curve y=3x2- 6x + 6 passes through the point s ( 2,3)
(a)Determine the gradient function of the curve.
(b) Find the co-ordinates of the turning point of the curve.
(c) Determine whether the point is a minima or a maxima.
(d) Find the equation of the
(i) Tangent to the curve at S.
(ii) Normal to the curve at S.
Date posted: September 20, 2019. Answers (1)
- The relationship between two variables S and T is given by the equation S = KTn where K and n are constants.
(a) Write down the...(Solved)
The relationship between two variables S and T is given by the equation S = KTn where K and n are constants.
(a) Write down the linear equation relating to S and T
(b) Hence complete the table above for the linear equation relating to S and T.
(c) Draw a suitable straight line graph to represent the data.
(d) use your graph to determine the values of K and n.
(e) find the value of S when T = 3.5
Date posted: September 20, 2019. Answers (1)
- Mr. Korir bought a tractor valued at Ksh. 800,00. the value of the tractor is depreciating at 20% p.a
(a) Calculate the value of the tractor...(Solved)
Mr. Korir bought a tractor valued at Ksh. 800,00. the value of the tractor is depreciating at 20% p.a
(a) Calculate the value of the tractor after 4 years.
(b) Find the time it would take for its value to be Ksh. 400,000. give you’re answer correct to 2 decimal
places.
(c) If after 4 years the tractor is sold through a broker who charge 5% commission find the amount received
by Mr. Korir from the sale
Date posted: September 20, 2019. Answers (1)
- Complete the table below giving the values to 2 decimal places.(Solved)
Complete the table below giving the values to 2 decimal places.
Date posted: September 20, 2019. Answers (1)
- Three quantities P,Q,and R are such that P varies jointly with Q and the square of R . if P = 900 when...(Solved)
Three quantities P,Q,and R are such that P varies jointly with Q and the square of R . if P = 900 when
Q = 20 and R = 3
Find (i) an equation connecting P, Q and R
(ii) the value of R when Q = 10 and P = 800
Date posted: September 20, 2019. Answers (1)
- The sum of the first 14 of an AP is 595. Given that the sum of the first 8 terms of the same AP is...(Solved)
The sum of the first 14 of an AP is 595. Given that the sum of the first 8 terms of the same AP is 220
Find the
(i) the first term
(ii) the common difference.
Date posted: September 20, 2019. Answers (1)
- The equation of a circle is x2+y2-25y=-14x+38. Determine the centre and the radius of the circle(Solved)
The equation of a circle is x2+y2-25y=-14x+38. Determine the centre and the radius of the circle
Date posted: September 20, 2019. Answers (1)
- Find the exact area enclosed by the curve y=3x2,the x-axis and the line x=2 and x=4. (Solved)
Find the exact area enclosed by the curve y=3x2,the x-axis and the line x=2 and x=4.
Date posted: September 20, 2019. Answers (1)
- A coffee trader buys two grades of coffee at sh. 80 and sh. 100 per parket . Find the ratio at which she
should mix...(Solved)
A coffee trader buys two grades of coffee at sh. 80 and sh. 100 per parket . Find the ratio at which she
should mix them so that by selling the mixture at a sh. 120, a profit of 25% is realized.
Date posted: September 20, 2019. Answers (1)
- Find the distance in kilometers between places R(40oS,25oW) and S(40oS,120oE) along the parallel of latitude(Take radius of the earth to be 6370km and p...(Solved)
Find the distance in kilometers between places R(40oS,25oW) and S(40oS,120oE) along the parallel of latitude(Take radius of the earth to be 6370km and pi = 22/7) correct to 2 d.p.
Date posted: September 20, 2019. Answers (1)
- Find the expansion of (1+1/2 x)3
Hence use your expansion to obtain the value of (1.05)3. Correct to 4s.f. (Solved)
Find the expansion of (1+1/2 x)3
Hence use your expansion to obtain the value of (1.05)3. Correct to 4s.f.
Date posted: September 20, 2019. Answers (1)
- The table below shows the marks obtained by Form 3 students of Rehema Secondary School in Mathematics Exam. The total numbers of students were 100.Find...(Solved)
The table below shows the marks obtained by Form 3 students of Rehema Secondary School in Mathematics Exam. The total numbers of students were 100.
Find the standard deviation of the distribution.
Date posted: September 20, 2019. Answers (1)
- Solve the equation;(Solved)
Solve the equation;
Log (x2-8x+20) = Log 4 + Log (x-4)
Date posted: September 20, 2019. Answers (1)