Lorenzo B.

A searchlight rotates at a rate of 2 revolutions per minute. The beam hits a wall located 9 miles away and produces a dot of light that moves horizontally along the wall. How fast (in miles per... more

sin²x (1 + cot²x) = 1LHS: sin²x (1 + cot²x)= sin²x (csc²x) (what rule)= sin²x (1 / sin²x) (what rule)= 1 (what rule)(Algebra, Reciprocal, Quotient, Pythagorean, or Odd/Even)

No calculator is allowed on this question.The average rate of change of a function, f, on the interval [1, 1+Δx] is given by sin(Δx) + 3-5*deltax.Find f'(1).

A girl on a skateboard (total mass of 40 kg) is moving at a speed of 13 m/s at the bottom of a long ramp. The ramp is inclined at 11° with respect to the horizontal. If she travels 14.0 m upward... more

Let h(x)=7x2-7A) Find the average rate of change from -3 to 7B) Find an equation of the secant line containing (-3, h(-3)) and (7, h(7))

what is the ratio between 5 and 3 and a total of 16

Find all critical values for the function f(x)=x ^5/11(x-5)^2 and then list them

a line passes through the point (-8,-2) and has a slope of 5/2 write an equation in slope-intercept form for this line

Let f be a twice-differentiable function such that f'(2)=0. The second derivative of f is given by f''(x)=x2e2-x -1 forUse the Mean Value Theorem on the closed interval [2,4] to show that f'(4)... more

A graphing calculator is recommended.A particle moves according to a law of motion s = f(t), t ≥ 0, where t is measured in seconds and s in feet. (If an answer does not exist, enter DNE.)f(t)... more

A bench that is 3.5 m long has a mass of 100 kg. It is supported at the left end by a wooden post. The right post is 2.0 m from the right end of the bench. A 200 N person sits 1.0 m from the right... more

Is the function below a rational function? If it is, write it in reduced form as a ratio of polynomials p(x)/q(x). If it is not, enter NONE in both blanks. Do not leave any blanks empty.x^2/x-1 -... more

Prove that speed of light in vacuum is Lorentz invariant

Please help me do this problem..I am having problems with my homework?