# Posts by manish

Total # Posts: 35

1. ### Math

If loga+ logb=logab show that (a+b)²-(a-b)²=4ab
2. ### Maths

What is the degree covered by the minute hand if the clock from 5pm to 5:20pm....
3. ### trigonometry

If A + B + C = ?, prove that: ( sin2A + sin2B + sin2C ) / ( sinA + sinB + sinC ) = 8 sin(A/2) sin(B/2) sin(C/2)
4. ### Math

If sin (theta+24)=costheta where theta is acute angle .find theta
5. ### maths

OPQR is a rhombus , three of whose vertices lie on a circle with centre O.If the area of the rhombus is 32 root 3cm square ,find the radius of the circle
6. ### Math

The difference of two numbers is 4. Three Times the smaller number is 4 more than twice the larger number. Find the numbers.

?510
8. ### maths

Write a pythagorean triplet whose smallest number is 6
9. ### Math

the angle of elevation of a ladder leaning against a wall is 60° and the foot of the ladder is 5.8m away from the wall. The length of the ladder is?
10. ### Maths

Find the number if 1/2 of which exceeds 1/3 by 4
11. ### Science

A car is braked so that it slows down with a uniform retardation from 15m/s to 7m/s while it travels a distance of 88m. If a car continues to slow down at the same rate, after what further distance will it be brought to rest?
12. ### Maths

if the radius of a sphere is increased by 10%, prove that its volume will be increased by33.1%.
13. ### math

If lines 7x-2y+10=0 and 7x+2y-10=0 forms an isoceles triangle with the line y=2. Then what is the area of the triangle. Pls help
14. ### math

What is the equation of the chord of the circle x^2+y^2=16, passing through (2,3). Pls help!
15. ### math

By selling some goods at Rs 31, a salesman loses 7% on his output. Find the % profit or loss, when he sells the same at Rs 35? Pls help
16. ### math

find thd radius whose s.a. is 154c.m

20km
18. ### Math

A man drove his car northward,then turned left and drove 10km and again turned left and drove 20km.He found himself 10km west of his starting point.How far did he drive northward initially?
19. ### Physics

A car is braked so that it slows down with uniform retardation from 15 m/s to 7 m/s while it travels a distance of 88 m. If the car continues to slow down at the same rate, after what further distance will it be brought to rest?
20. ### Jkr public school

mole fraction of solute is 0.4 what is molality of solution
21. ### MATH

there are 400 students at smith Elementary school 1/4 of the students are in fourth and fifth grade, 1/10 of the students are in grade 3, 2/8 are in second grade and 2/5 are in first grade . How many kids are in each grade? (4th and 5th have an equal amount)
22. ### math

65=A; 70=f; 75=k; 80=p; 85=u 90=z 66=B; 71=g; 76=l; 81=q; 86=v; 67=c; 72=h; 77=m; 82=r; 87=w; 68=d; 73=i; 78=n; 83=s; 88=x; 69=e; 74=j; 79=o; 84=t; 89=y 95-65=25; so how can be 26 values from 65 to 95;
23. ### Physics

what is the final temperature of mixture, if 100gm of ice at 0 degree celcius into 100gm of water at 20 degree celcius in an iron vessel of mass 100gm.(specific heat of iron=0.1)
24. ### Chemistry

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25. ### physics

First of all, Henry cannot be right because the ball was "thrown" at the ground. His formula is only valid if it was free fall. However, the ball gained acceleration from the throw. You have to use energy formulas. I have a similar question on my worksheet, but I don...

Tan75/2

15-8?3
28. ### math

solve[1.67*10^(-7x)-10^(-6055x)]
29. ### geometry

How can we find the area of a triangle using a geoboard
30. ### calculus 2

439.32

) FIVE JOBS ARE SCHEDULED IN TWO MACHINES IN A MANUFACTURING SHOP. AL FIVE JOBS ARE TO UNDERGO PROCESSING IN BOTH THE MACHINES SEQUENTIALLY PROCESSING TIMES IN MINUTES JOB NO MACHINES1 MACHINE 2 1 4 7 2 6 3 3 2 3 4 7 7 5 8 6 A) IDENTIFY THE BEST SEQUENCE USING JOHNSON’S ...