Solve the quadratic equation 2x^2-4x-1=0

A cube of side 10 cm is melted down and made into ten identical spheres. Calculate the surface area of one of the spheres.

Trensie is flipping a weighted coin where the probability of landing on tails is 1 / 3. If she flips the coin two times, what is the probability that she gets heads both times?

Solve the formula for c. show your steps. p = r - c

Which number is greater 0.3 or 0.39

In how many ways can 6 bicycles be parked in a row

Marianna wants to buy a new tennis racket that costs $57.50. She has $8 and plans to save $4.50 each week. How many weeks will it take her to save the money?

Select the expression that equals-3 - (-5). A - 3 + (-5) B - - 3 + (-5) C - - 3+5 D - 3+5

X and Y are independent random variables. X is normally distributed with mean 1 and variance 1. Y is normally distributed with mean 3 and variance 5. What is the variance of Y - 2X?

Simplify - 2/3 - 3/5.

Alive, Kathy and Sheila work as medical assistant at valley clinic. Alice has work 8 years longer than Kathy. Kathy has worked half as long as Sheila. If Sheila has worked at the company for 10 years how many years has Alice worked there?