Umartins1:
@harbeemx,,,,,,


This is the answer u provided and my judgement




Your answer : 2+4+8+14+16+18+x/7=10:x=8 mode=8

correct






Your answer 2pi r*0.02
2*3.142*7*0.02=0.879


wrong




Correction: A = pi r²

dA/dR= 2pi r


dr/dt= 0.02


dA/dt= dA/dr * dr/dt


= 2pi r * 0.02

= 2 * 22/7 * 7 * 0.02

= 44 * 0.02

= 0.88cm²/s





Your answer 5p2=5!/2!3!=10


wrong



Correction: 5C ₂

This is how you can get 10.







Your answer : X^2-y^2=4
X+y=2
(X+y)(x-y)=4
2(x-y)=4
X-y=2
Put x=2-y
Y=0;x=2


correct






Your answer: X+2x+3x+4x+5x=15x
(2n-4)90
(2*5-4)90
6*90=540
15x=540
X=36


correct







Your answer Y=y
2x+4=7-x
3x=3
X=1
Y=6
(1 6)
(4 3)(1 6)
(1-4)^2+(6-3) ^2=18


correct but put square root.






Your answer : Cos135=sin(180-135)=
Sin45=cos45=
1/ root2


wrong



Correction:
-cos (180-135)
-cos45
-1/root 2 . You didn't put minus.





Your answer
X/7=96=672
672+x/8=112
672+x =896
X=224


correct






Your answer
7^2-5^2
49-25
24=
Root of 24=4.9
4.9*2=9.8


correct





Your answer v.of the cube=3^3=27
V.Of tank=3*4*5=60
Total volume=60+27=87cm^3


wrong


Correction: you are to subtract.

thanks bro.but I got number 2...and mistook my permutation sign was meant to put combination

Umartins1:
11. An empty rectangular tank is 250cm long and 120cm wide. If 180litres of water is poured into the tank, what would be the height of the water?


12. The midpoint of P(x,y) and Q(8,6) is (5,8]. Find x and y.

13. Find the equation of a line perpendicular to line 2y=5x+4 which passes through (4,2)


14. A man walks 100m due west from a point x to Y, he then walks 100m due north to a point Z. Find the bearing of x from z.


15. The derivative of sinx/cosx is


16. Find the value of x at the minimum point of the curve y=x³+x²-x+1


17. Find S cos4x dx


18. Given that log2=0.3010, log7=0.8451. Evaluate log112

19. Find the sum to infinity of the following series 0.5+0.05+0.005....


20. what is the locus of points that is equidistant from points P(1,3) and Q(3,5)?

18.a/1-r
0.5/1-0.1
0.556

[quote author=Umartins1 post=34699914] 18. Given that log2=0.3010, log7=0.8451. Evaluate log112 Log7*2^4 Log7+4log2 0.8451+1.204= 2.0491

[quote author=Umartins1 post=34699914]
16. Find the value of x at the minimum point of the curve y=x³+x²-x+1
Integrate it
3x^2+2x-1
Quadratic equation
(3x-1)(x+1)=0
3x-1=0 or x+1=0
X=1/3 or -1

[quote author=Umartins1 post=34699914]11. An empty rectangular tank is 250cm long and 120cm wide. If 180litres of water is poured into the tank, what would be the height of the water?


12. The midpoint of P(x,y) and Q(8,6) is (5,8]. Find x and y.

13. Find the equation of a line perpendicular to line 2y=5x+4 which passes through (4,2)


14. A man walks 100m due west from a point x to Y, he then walks 100m due north to a point Z. Find the bearing of x from z.


15. The derivative of sinx/cosx Is vdu/dx-udv/dx/v^2
Cosx*cosx-(sinx*-sinx)/cos^2x
Cos^2x + sin^2x/cos^2x
Cos^2x + sin^2x=1
1/cos^2x
Sec^2x

Umartins1:
11. An empty rectangular tank is 250cm long and 120cm wide. If 180litres of water is poured into the tank, what would be the height of the water?


12. The midpoint of P(x,y) and Q(8,6) is (5,8]. Find x and y.

13. Find the equation of a line perpendicular to line 2y=5x+4 which passes through (4,2)


14. A man walks 100m due west from a point x to Y, he then walks 100m due north to a point Z. Find the bearing of x from z.


15. The derivative of sinx/cosx is


16. Find the value of x at the minimum point of the curve y=x³+x²-x+1


17. Find S cos4x dx


18. Given that log2=0.3010, log7=0.8451. Evaluate log112

19. Find the sum to infinity of the following series 0.5+0.05+0.005....


20. what is the locus of points that is equidistant from points P(1,3) and Q(3,5)?

14.it requires a diagram
Tanx=100/100
Tanx=1
X=45
90+45=135

Umartins1:
11. An empty rectangular tank is 250cm long and 120cm wide. If 180litres of water is poured into the tank, what would be the height of the water?


12. The midpoint of P(x,y) and Q(8,6) is (5,8]. Find x and y.

13. Find the equation of a line perpendicular to line 2y=5x+4 which passes through (4,2)


14. A man walks 100m due west from a point x to Y, he then walks 100m due north to a point Z. Find the bearing of x from z.


15. The derivative of sinx/cosx is


16. Find the value of x at the minimum point of the curve y=x³+x²-x+1


17. Find S cos4x dx


18. Given that log2=0.3010, log7=0.8451. Evaluate log112

19. Find the sum to infinity of the following series 0.5+0.05+0.005....


20. what is the locus of points that is equidistant from points P(1,3) and Q(3,5)?

13.m1=-1/m2
2y=5x+4
Divide through by 2
Y=5x/2+2
Gradient =5/2
M1=-1/5/2
=-2/5
Y-y1=m(x-x1)
Y-2=-2/5(x-4)
5y-10=-2x+8
5y+2x=18

Umartins1:
Bro, harbeemx



Pls, can u solve the question one by one? Make it neater so that I can correct easily.

wow...dats a lot of stress...just check my answers

Umartins1:
11. An empty rectangular tank is 250cm long and 120cm wide. If 180litres of water is poured into the tank, what would be the height of the water?


12. The midpoint of P(x,y) and Q(8,6) is (5,8]. Find x and y.

13. Find the equation of a line perpendicular to line 2y=5x+4 which passes through (4,2)


14. A man walks 100m due west from a point x to Y, he then walks 100m due north to a point Z. Find the bearing of x from z.


15. The derivative of sinx/cosx is


16. Find the value of x at the minimum point of the curve y=x³+x²-x+1


17. Find S cos4x dx


18. Given that log2=0.3010, log7=0.8451. Evaluate log112

19. Find the sum to infinity of the following series 0.5+0.05+0.005....


20. what is the locus of points that is equidistant from points P(1,3) and Q(3,5)?

12.
5=x+8/2. 8=y+6/2
X=2 y=10

Umartins1:
11. An empty rectangular tank is 250cm long and 120cm wide. If 180litres of water is poured into the tank, what would be the height of the water?


12. The midpoint of P(x,y) and Q(8,6) is (5,8]. Find x and y.

13. Find the equation of a line perpendicular to line 2y=5x+4 which passes through (4,2)


14. A man walks 100m due west from a point x to Y, he then walks 100m due north to a point Z. Find the bearing of x from z.


15. The derivative of sinx/cosx is


16. Find the value of x at the minimum point of the curve y=x³+x²-x+1


17. Find S cos4x dx


18. Given that log2=0.3010, log7=0.8451. Evaluate log112

19. Find the sum to infinity of the following series 0.5+0.05+0.005....


20. what is the locus of points that is equidistant from points P(1,3) and Q(3,5)?

11.250*120*h=180000
H=6

Umartins1:

You got this!!!
Bravo!

check the rest I have answered them

Umartins1:
@harbeemx,,,,
Kudos but you are off track. You are making some technical mistakes.

@kongru,,
Pls, show workings.

Bravo to both of you!

pls score me

Umartins1:

60-27 33cm³

help me check if I got the rest

Umartins1:
Some Maths questions....

1. The mean of seven numbers is 10. If six of the numbers are 2, 4, 8, 14, 16 and 18. Find the mode.


2. The radius of a circle is increasing at the rate of 0.02cm/s. Find the rate at which the area is increasing when the radius of the circle is 7cm.


3. In how many ways can a student select 2 subjects from 5 subjects?


4. Solve for x and y in equations below:

x² - y² = 4

x + y = 2



5. The angles of a polygon are given by x, 2x, 3x, 4x and 5x respectively. Find the value of x.


6. Find the distance between the point (4,3) and the intersection of y=2x+4 and y=7-x.


7. If angle X is 135^o, evaluate cos X


8. Evaluate S² ₁(x²-4x) dx


9. The mean of seven numbers is 96. If an eight number is added, the mean becomes 112. Find the eight number.


10. A chord of a circle of radius 7cm is 5cm from the centre of the circle. What is the length of the chord?


11. A solid metal cube of side 3cm is placed in a rectangular tank of dimensions 3cm, 4cm and 5cm. What volume of water can the tank now hold?

8.(x^3/3-2x^2+c)^2-(x^3-2x^2+c)^1
-16/3+c+5/3-c
-11/3

Umartins1:
Some Maths questions....

1. The mean of seven numbers is 10. If six of the numbers are 2, 4, 8, 14, 16 and 18. Find the mode.
2+4+8+14+16+18+x/7=10:x=8 mode=8

2. The radius of a circle is increasing at the rate of 0.02cm/s. Find the rate at which the area is increasing when the radius of the circle is 7cm.
2pi r*0.02
2*3.142*7*0.02=0.879
3. In how many ways can a student select 2 subjects from 5 subjects?
5p2=5!/2!3!=10

4. Solve for x and y in equations below:

x² - y² = 4

x + y = 2
X^2-y^2=4
X+y=2
(X+y)(x-y)=4
2(x-y)=4
X-y=2
Put x=2-y
Y=0;x=2



5. The angles of a polygon are given by x, 2x, 3x, 4x and 5x respectively. Find the value of x.
X+2x+3x+4x+5x=15x
(2n-4)90
(2*5-4)90
6*90=540
15x=540
X=36


6. Find the distance between the point (4,3) and the intersection of y=2x+4 and y=7-x.
Y=y
2x+4=7-x
3x=3
X=1
Y=6
(1 6)
(4 3)(1 6)
(1-4)^2+(6-3) ^2=18

7. If angle X is 135^o, evaluate cos X
Cos135=sin(180-135)=
Sin45=cos45=
1/ root2
8. Evaluate S² ₁(x²-4x) dx


9. The mean of seven numbers is 96. If an eight number is added, the mean becomes 112. Find the eight number.
X/7=96=672
672+x/8=112
672+x =896
X=224

10. A chord of a circle of radius 7cm is 5cm from the centre of the circle. What is the length of the chord?
7^2-5^2
49-25
24=
Root of 24=4.9
4.9*2=9.8


11. A solid metal cube of side 3cm is placed in a rectangular tank of dimensions 3cm, 4cm and 5cm. What volume of water can the tank now hold?

v.of the cube=3^3=27
V.Of tank=3*4*5=60
Total volume=60+27=87cm^3

ariyibiyomi:
1. Let x be d cost of 27 packets, 900/100=0.9kg, 16x0.9=14.4, 27x1=27, x=27x28/14.4=52.5 2.100-11.11=88.89,100+14.28=114.28,% interest=sp-cp/cpx100 =114.28-88.89=25.39/88.9=0.285= 0.285x100=28.5 3. Let the number of old students be y, Age of old students=40y, age of new students=120x32=3840, total average age is 40y+3840/y+120=36, cross mutiply and solve for y, y will be 120, d total number of students is 120+120=240. 4 I=PRT, 225=3PR, R=75/P, compound intrest A=P(1+R)^n, but A=P+I, 153+P=P(1+75/P)^2, 153+P=P(1+150/P+5625/P^2), 153+P=P+150+5625/P, 153P+P^2=P^2+150P+5625, solve for P which is 1875. Number 5 and 6 require a diagram to explain, and i cannot draw it here

please bro for number 4 is 153 the interest or the amount

ariyibiyomi:
1. Let x be d cost of 27 packets, 900/100=0.9kg, 16x0.9=14.4, 27x1=27, x=27x28/14.4=52.5 2.100-11.11=88.89,100+14.28=114.28,% interest=sp-cp/cpx100 =114.28-88.89=25.39/88.9=0.285= 0.285x100=28.5 3. Let the number of old students be y, Age of old students=40y, age of new students=120x32=3840, total average age is 40y+3840/y+120=36, cross mutiply and solve for y, y will be 120, d total number of students is 120+120=240. 4 I=PRT, 225=3PR, R=75/P, compound intrest A=P(1+R)^n, but A=P+I, 153+P=P(1+75/P)^2, 153+P=P(1+150/P+5625/P^2), 153+P=P+150+5625/P, 153P+P^2=P^2+150P+5625, solve for P which is 1875. Number 5 and 6 require a diagram to explain, and i cannot draw it here

thanks a lot u nd umartins really trying for us...would post more mathematics questions

Umartins1:


Let the number be x
x² - x = 42
x² - x - 42 = 0
x² + 6x - 7x - 42 = 0
x(x+6) -7(x+6) = 0
(x-7) (x+6) = 0
x-7=0 or x+6=0
X=7 or x=-6



let the base = x
Height(altitude) = x-2
A= 1/2*b*h
262.5= 1/2 * x(x-2)
262.5*2 = x² - 2x
525= x² - 2x
x² - 2x - 525 = 0
Use quadratic formular,
x= 23.93cm

Aaaaaah!!! I don't know oooo, unless the numbers are fractions.



P= 2(l+b) and A = lb
2(l+b)= 54
l+b=27........... (1)
lb= 180........ (2)

From eqn (1),
L= 27-b
Sub for l in eqn (2)
(27-b)b= 180
27b-b²= 180
-b²+27b-180=0
b²-27b+180=0
b²-12b-15b+180=0
b(b-12)-15(b-12)=0
(b-15)(b-12)=0
b=15 or b= 12.

When b = 15,
Sub for b in eqn (1)
L+15= 27
L= 27-15
L= 12 ( Wrong because the breadth can not be longer than the length )
When b= 12
L+12= 27
L= 27-12
L=15
Therefore l=15cm, b= 12cm.

thanks a lot boss..waiting for the rest

Umartins1:
harbeemx

yes boss...but they were not clear workings...pls help us out

Umartins1:
harbeemx

yes boss...but they were not clear workings...pls help us out

harbeemx:
1.The cost of 16 packets of salt each weighing 900 gram is$28.what will be the cost of 27 packets if each packet weigh 1Kg each
2.After allowing a discount of 11.11%,a trader still gains 14.28%.At what % of interest does the trader mark his goods
3.Average age of students in an adult school is 40 yrs.120 new students whose average age is 32 joined the school.As a result the average age is decreased by 4. The number of the school after joining the new student is?
4.The simple interest on a certain sum of money for 3 years is 255 and the compound interest on the same sum at the same rate for 2 years is 153 then the principal invested is?
5.If sec u=1.414 sin u=
6.A frustum of a pyramid is 3cm square at the top And 6 cm square at the bottom and is 5cm high. The volume in cm cube of the frustum is?

and these

isholad1:
i misplaced my fone dats y, and there are many unilag grup sum1 dnt knw where 2 log on to.
abeg aid me in solving dis 4 questns.
1. A boy thinks of a number. He squares it and subtracts from it original number. The result is 42. what is the number?
2. The altitude of a triangle is 2cm less than the base and the area is 262.5cm2. Find the length of the base.
3. A pupil multiples 3 numbers. One of them is the number 4. of the other 2 numbers, one is reater than the other by 6. if the result of the multiplication is 45, find the unknown numbers.
4. A rectangle has a perimeter of 54cm and an area of 180cm2. Find its length and width.

these are some

labodinho:
Now that putme is at its nearest position,let's flood this place with all the subjects that will be written in putme.Maths,English and general paper questions should be welcomed.Let's get it started.Good morning.

bro...pls can u help us solve the unsolved maths questions in d previous pages

Umartins1:

since they intercept, 5x-3=2x+9 5x-2x=9+3 3x=12 x= 4 Sub for x y= 5(4)-3 y=20-3 y= 17
(4,17)

wow thank u very much bro.pls help us with d. Remaining

dreyolumight:
D line y=5x-3 and y=2x +9 intersects at p... Wats coordinate of p?

the two gradients of the equation are 5,2...NB;the co-efficent of x is always the gradient

dreyolumight:

HOW POSSIBLE?
SHOW WORKINGS MAN!
HOW POSSIBLE?
SHOW WORKINGS MAN!
HOW POSSIBLE?
SHOW WORKINGS MAN!

lemme know if am correct first

information says Gov. Olusegun Mimiko among other PDP governors brought up the idea and had a meeting overnight with the rejected APC candidates(saraki and Dogara). But the question is who is really the master mind behind this?

dreyolumight:
D line y=5x-3 and y=2x +9 intersects at p... Wats coordinate of p?

(5,2)

Just read the constitution and it says: The senate leader is decided by the majority votes. Saraki had 57 votes compared to the other 51, based on impeachment,he needs 2/3 of the house which is practically impossible based on his love from PDP. Let's just enjoy this shared government till 2019

Umartins1:


Bursted!!! Scammers, your days are numbered!

oga...free her joor...make she dey advertise....I hope no one falls sha....pls kindly help us review d unsolved questions in d previous page

Umartins1:


Bursted!!! Scammers, your days are numbered!

oga...free her joor...make she dey advertise....I hope no one falls sha....pls kindly help ur review d unsolved questions in d previous page

All I know is that Buhari can't take half of the insults Johnathan took.