Posts by nikhil

Total # Posts: 29

Math
Problem: Tad draws three cards at random, without replacement, from a deck of ten cards numbered 1 through 10. What is the probability that no two of the cards drawn have numbers that differ by 1? Express your answer as a common fraction. Scott's solution: =============== ...

probability
Thanks a lot Scott, Appreciate your quick response. I reviewed the answer key and it states 7/15 as the answer to this problem. I am wondering if the answer key is incorrect. Thanks again Nikhil

probability
Tad draws three cards at random, without replacement, from a deck of ten cards numbered 1 through 10. What is the probability that no two of the cards drawn have numbers that differ by 1? Express your answer as a common fraction.

Pre-Cal
A plane has a velocity of 400 mph to the SW. A wind from the west is blowing at 50 mph. Find the resultant speed and direction. How do i find resultant speed without a direction.

Math
Find the simple interest on 8,500 rd from 12th October,1999 to 6th march 2,000 at per annum

wisdom'
jack ate a mango

Math
The sum of real values of k for which the cubic x^3-kx+k-1=0 has exactly tho distinct real solution.

mathe arithmetic progression
If the term 7th of an A.P are 18 and 30 respectively.find the 13th term

Math
The sum of three consecutive natural number is 153.find the numbers

Science
600

Science
istance of a planet from sun is four times the distance of the planet frpm earth.How many years will the planet take to complete one revolution of sun?

Nm juniour clg,rkl
A 20gm bullet collision is fired horizontaly into a 5kg block of wood.suspended by a long spring.The bullet gets embedded in the block and the block at the hole swing 15cm above in intial level.calculate the velocity of bullet?

maths
60

physics
four equal charges 2*10^-6c each are fixed at the four corner of a square of side 5cm.find the coulumb force experinced by one of the charge due to rest three

physics
Stone dropped from top of a tower 100m high. At same instant another stone is thrown vertically from base of the tower with a velocity of 25m/s. When and where will the two stones meet? Given g =10 m/s^2

physics
the ray of son strike the surfaces of a lake at an angle of incidence of 30°.find the angle through which the rays are deviated when they enter water of refrective index 1.33.

Math
Liz uses 19 connecting cubes to make a model of house. The house model is in the shape of a rectangle and is one cube high. How many different ways could Liz make the model of the house?

physics
a particuler moves along the sides AB,BC,CD of a square of side 25m with a speed of 15m/s. Its average velocity is?

maths
In t hours, distance covered by Sita is 5t distance covered by Gita is 4t solve for t: 5t + 4t = 27 9t = 27 t = 3 hours

physics
300N

Physics
A stone is thrown vertically upward at 15 m/s. Neglect friction due to the air. What is the stone's velocity after 2 seconds?

integral calculus
lim x->3(x^3-x-24)/(x^3+x^2-36)

physics
Two masses m and 2m are attached with each other by a rope passing over a frictionless and massless pulley. If the pulley is accelerated upwards with an acceleration ‘a’, what is the value of T?

Business
1 What are the reasons of declines in employee job satisfaction? 2 What factors differentiate good decision makers from poor ones? 3 When do groups make better decisions than individuals? 4 What are the pros and cons for focusing on the distant future and the heavy ...

trigonometry
CosA

calculus
1 pt) Find the length of the curve defined by y=1/8(x^2−8ln(x)) from x=3 to x=5

7th grade science
make a word out of the letters P A M O U S E E N

Muscular Energy
sorry

maths
If A=1+r^a+r^2a+r^3a+.......................to infinity B=1+r^b+r^2b+................to infinity then find a/b=????? Is r^2a supposed to be r^(2a) or a*r^2? In other words, is the a part of the exponent? what the heck is that? exponents are like 2 cubed or 2 squared. 2 cubed= ...