The lim as x goes to 0- for cos(x)/sin(x). I know the answer is negative infinity but I don't really understand why.
A rectangle is inscribed with its base on the x axis and its upper corners on the parabola y= 12 - x^2. What are the dimensions of such a rectangle with the greatest possible area?
One jar holds 16 red marbles and 4 blue marbles. A second jar holds 75 white marbles and 25 blue marbles. What is the probability that a blue marble will be drawn from both jars?
I'm in 6th grade and I need help for my science project. I don't even know what to do. Any fun science projects for 6th graders?
is this sentence punctuated correctly ?My grandfather's favorite quotation is E.E. Cummings's, "The most wasted of all days is one without laughter."
Two charges are separated by a distance d = 5 m. The charge q1 has a charge of q1= 7.0 µC (microcoulombs) and q2 has a charge of q2= 6.8 µC. What is the force between the charges?
Let f be a function such that f(-1)=3 and f'(-1)=6 let h(x)=x^5f(x) evaluate h'(x) at x=-1
If the true population standard deviation was known to be 3.0, then approximately what minimum sample size would you need in a simple random sample if you want a 95% confidence interval for the mean to have a margin of error of .5 or less?
Find a polynomial f(x) with leading coefficient 1 and having the given degree and zeros. Each polynomial should be expanded from factored form, simplified and written in descending order of exponents on the variable. For example: (x+5)(x-2) should be given as the answer x^2 + ...
if the discriminant of (5u^2)+bu+2=0 is 41, what are all the values of b