Answer:
cos ∠CBD = - 4√41 / 41
Step-by-step explanation:
AB = 4 ΔABC = (4 x AC) / 2 = 10
AC = 5
BC = √5² + 4² = √41
cos ∠CBD = cos (180° - ∠CBA) = cos 180° cos ∠CBA + sin 180° sin ∠CBA
(cos 180° = - 1 sin 180° = 0 cos ∠CBA = 4 / √41 )
cos ∠CBD = (-1) x cos ∠CBA = - 4 / √41 = - 4√41 / 41
It's a cubic with a positive x^3 coefficient. The general shape is "/".
It goes to -∞ for large negative x.
It goes to +∞ for large positive x.
Answer: It is TRUE. A point in a linear equation can be the solution to said equation.
Answer:
120,027£
Step-by-step explanation:
A=P(1+r/100)^n
120,000(1+1.5/100)^2
=120,027£
hope it helps
Answer:1380
Step-by-step explanation:
its because theres 12 months in a year and its 115 dollar and 115x12 is 1380
