# P1

Most popular questions and responses by P1
1. ## mathematics-combination vs A.P

if nC4 ,nC5 and nC6 are in arithemetic progression. then find value of n (Note, nC4=n combination 4) please show workings #thanks

2. ## mathematics-change of subject of formula

A=πr√(h^2-r^2) make "r" the subject of the formula show workings #thanks

3. ## mathematics-Algebra

I think of two whole numbers;the product of the average of the sum and difference of the numbers and the difference of the sum and difference of the numbers is 12.if three times the first added to the second makes up 11..find the two numbers please show

4. ## mathematics-change of subject of the formula

A=πr√(h^2-r^2) make "r" the subject of the formula show workings #thanks

5. ## mathematics-probability

. A die is rolled four times, what is the probability of obtaining exactly one six show workings #thanks

6. ## mathematics-logarithm

logx^2{base3}=-8 show that x=1/27

7. ## mathematics-Rate

4 men and 10 women can cut a field in 5hrs. If the men work at 5/4 the rate at which the women work. How many men will be needed to cut the field in 3hrs. #Please i need the detail explanation #thanks

8. ## mathematics-permutation and combination

if certain number of boys are arranged evenly cyclical form, the 7th boy is directly opposite the 18th boy . How many boys are there? Please i only need the solution #thanks

9. ## mathematics-root of cubic eqn

The roots of the equation x^3 + 2x^2 + 3x - 4 = 0 Are m, n , k (a) write down the value of m + n + k (b) write down the value of mn + nk + km (b) find the value of m^2 + n^2 + k^2 please show detailed solutions #thanks

10. ## mathematics-probabilities

. A letter is picked random from the word COMPUTER. What is the probability that it is either in the word CUT or in the word ROPE please show workings #thanks

11. ## mathematics-cubic equation

. solve the cubic equation 2x^3-11x^2+18x-8=0 show workings #thanks

12. ## maths-I only need the solution

x+y+√z=148 x+√y+z=82 √x+y+z=98 find x,y,z given that x,y,z are all positive integers. Please i need the solution #thanks

13. ## mathematics-need help urgently please

A tank with a square base of side x has a capacity of 1000m^3. If the total area is pm^3, show that p=2x^2+4000/x. Hence find the least area of the flat sheet that may be used to build the tank. Please show workings #thanks

14. ## mathematics-calculus-derivatives

. If y=cosx, find dy/d5x please show workings #thanks

15. ## mathematics-probability

. A die is rolled four times, what is the probability of obtaining exactly one six show workings #thanks

16. ## mathematics-discriminant

. Find d delta(discriminant) of 2x^3-7x^2-17x+10 show workings #thanks

one of the roots of the quadratic equation x^2-(4+k)x+12=0 find, 1)the roots of the equation 2)the possible values of k please show your workings thanks in advance.

one of the roots of the quadratic equation x^2-(4+k)x+12=0 fine, 1)the roots of the equation 2)the possible values of k please show your workings thanks in advance.

19. ## mathematics-Remainders theorem

what is the remainder when 17^2^111110253 is divided by 21 please show working #thanks

20. ## mathematics-remainders theorem

what is the remainder when 17^2^111110253 is divided by 21 please show working #thanks

21. ## mathematics-remainder theorem

what is the remainder when 17^2^111110253 is divided by 21 please show working #thanks

22. ## mathematics-abstract equations

x+y+√z=148 x+√y+z=82 √x+y+z=98 find x,y,z given that x,y,z are all positive integers. Please i need the solution #thanks

Given that, x^2-4x+4 is a root of x^3+ax^2+bx-4. Find a and b please show workings #thanks

Given that, x^2-4x+4 is a root of x^3+ax^2+bx-4. Find a and b please show workings #thanks

. Given that, x^2-4x+4 is a root of x^3+ax^2+bx-4. Find a and b please show workings #thanks

26. ## mathematics-calculus-derivatives

. Try this. If y=cosx find dy/d5x please show workings #thanks

27. ## mathematics-sequence

. Find 3-tails of d sequence:{2,4,6,8,10,12,14} please show workings #thanks

28. ## mathematics-sequence

. Find 3-tails of d sequence:{2,4,6,8,10,12,14} show workings #thanks

29. ## mathematics-slope of tangent

Find the slope of the tangent to the curve x^2+xy+y^2=4 at the point(2,-2) please show workings #thanks

30. ## mathematics-state of rules

. Given cos^2x+sin^2x=1 state it Osborne rule

31. ## mathematics-evaluation

evaluate e^3 to the fifth series

32. ## Mathematics- abstract maths

If I am a three digit number and my first digit is seven less than second digit and the second digit is four times that of third digit. What digit am i?

35. ## maths -partial fractions

Resolve in partial form (x^2+15)/(x+3)^2(x^2+3)

1. ## mathematics-permutation and combination

thank alot Sir Reiny. Have gotten the right path with you explanation. sir steve, i also appreciate. Now i got 22 boys as the answer.

posted on May 8, 2016
2. ## mathematics-change of subject of the formula

posted on May 1, 2016
3. ## General arithmetic and reasoning

L=24m, W=?? L: w=3:2 3/2=24/w 24*2=3*w 48=3w W=48/3 w=16m width=16metres

posted on April 6, 2016
4. ## math

type wit normal font. Didn't get what you typed

posted on March 30, 2016
5. ## Math

surface area of a sphere=4πr^2 r=12 4π12^2 =1809m^2 option(A)

posted on March 30, 2016
6. ## Mathematics- abstract maths

posted on March 17, 2016
7. ## mathematics-Algebra

yeah, but diz theory qstn. You mean it can't be solved?? what abt using theory of logarithm?

posted on March 16, 2016

huh, thanks bro, but i didn't comprehen your workings. How did you get (4+k)^2/4

posted on March 14, 2016
9. ## Math

/x^2-6x/=9 Or /x^2-6x/=-9 re-check the question.

posted on February 21, 2016