find the angle theta between two vectors v=-sq. root of 3/2 i+-square root of 3 / 2 j and w=4 square root of 3 i +4j
if the 60km is horizontal distance, then tan x = 10/60 if it's line-of-sight distance, then sin x = 10/60 luckily, for small x, sinx and tanx are very close to each other.
Calculus PLEASE HELP
You are correct, both in your calculations and your understanding of the concepts. C is increasing when C' > 0 C' = 6x^2-42x+36 = 6(x^2-7x+6) = 6(x-1)(x-6) C'>0 for x<1 or x>6 The marginal cost is C', so C' is increasing when C">0. C&quo...
I don't think the equations enclose any area. But their graphs do. Gotta be precise when talking and doing math! The curves intersect at y=±4, so the area between the curves is just ∫[-4,4] (16-y^2)-(y^2-16) dy which, taking advantage of the symmetry is 4ͪ...
12 - q > and equal to - 13
what's the chance of getting no hermaphrodite plant? 1/3 So, I'd say the chance of getting no herms in 3 draws is 1/27, leaving 26/27 chance of getting at least one. This assumes a large enough population that drawing 3 plants without replacement does not significantly...
4x + 4 = 9x - 36 my answer is 8
5h - 9 = -16 + 6h
all kinds of Z stuff here: http://davidmlane.com/hyperstat/z_table.html
Not knowing what your teacher will recognize, it's hard to say, but I'd guess an octagon would be easy enough. Start with a square, with vertices at, say, (1,1)(5,1)(5,5)(1,5) Now add another four points near the midpoints of the sides, say at (3,0)(6,3)(3,6)(0,3) Now ...