Mathematics

Calculus Find (f-1)'(a)

f(x)=4+x^2+tan(pi*x/3), -1 find (f-1)(a)-Note that f(x) is increasing on -1 Then, since f(0) = 4, then by the definition of the inverse function: f^(-1)(4) = 0. Now, since f(x) and f^(-1)(x) satisf

A triangle has the side lengths of 10, 11 and 19. Calculuate all of the angles of the triangle using the laws

of Cosines?-By the Law of Cosines, if a, b, and c are the sides of a triangle and A, B, and C are opposite to a, b, and c, respectively, we have: (a) a^2 = b^2 + c^2 - 2bc*cos(A) (b) b^2 = a^2 + c^2 -

Solving Quadratic Inequalities x² - 5 ≤ -4x

what is the answer in algebraic notation?-By adding 4x to both sides, we have: x^2 - 5 ≤ -4x ==> x^2 + 4x - 5 ≤ 0. Then, by factoring: x^2 + 4x - 5 ≤ 0 ==> (x + 5)(x - 1) ≤ 0. Now, a quadratic equat

Limit as x approaches 1 of (2 - x)^tan(pix/2)

I know that the limit is undefined at 1 because tan(pi/2) is undefined. It appears to get closer to 1, but I wondered, mathematically, how to evaluate the raised trig function-Well the limit takes the

Factor the perfect square. 49x^2+14x+1=

(7x + 1)^2-You are welcome, and thanks for the BA. Regards.Report Abuse-(7x+1)^2

Calculate the probability of the stated event

If 2 is the number of successes in a sequence of 4 independent Bernoulli trials with p = .5 and q = .5, calculate the probability of the stated event. P(X = 2) = ?-Binomial Sampling Distribution: P

Find the integral value of c in triangle ABC

Consider a triangle ABC with angle C = α, 0 AC = 17 BC = 19 AB = c Find the number of integral values of c. (The correct answer is 33)-I dont agree with the answer of 33 if the top limit for alpha is

Forget the number 23, what's up with the number 10

I dont know what to do, I am surrounded by the number 10. Its everywhere; We use 10% or our brains. You have to go 10 yards to get a first down. David Letterman has a Top Ten List. I have ten fing

X^9/7/x^5/7=..................

x^(9/7 - 5/7) = x^(4/7)-Thanks & Regards.Report Abuse-its quite simple if you know this basic rule that if the base of powers are same then in case of division powers are subtracted and in case of mul

Given the parallelogram below, find coordinates for P, without using any new variables.

http://www.flickr.com/photos/60630574@N0… Given the parallelogram below, find coordinates for P, without using any new variables.A.(a – c, b)B.(a + c, b) C.(c, b)D.(c, a)-as P is at the same height a

Integration Problem which requires some serious help.

Hi, I have been studying diffentation over the last few months and i have recently moved on to Integration and i need some help. (I am struggling). Can any body out there take me through the followin

Please help solve statistic's word problem

a company installs 5000 light bulbs, each w/ an average life of 500 hours, standard deviation of 100 hours and distribution approximated by a normal curve. Find the percentage of bulbs expected to las

I was watching the MIT - Lec 15 on Fourier Series (Linked Below ) and the professor

mentioned a proof for orthogonal functions using trig identities. Does anyone know that proof? The other two proofs, in case you were wondering, where using a second order ODE and complex exponential

SAT Math Help!!!!!!!!!!!!!!!!!!

What does it mean when X and Y are directly proportional or indirectly proportional?-What is probably meant by directly proportional is that x and y grow with each other. For example, in the equation

One algebra question.

https://www60.studyisland.com/userfiles/29152num10.gif Using the vertical line test, determine if the graph above shows a relation, a function, both a relation and a function, or neither a relation n