Answer:
(Y-5)=-2/5(x+8)
Step-by-step explanation:
Point slope form is (y2-y1)=m(x2-x1)
We need to find dot products of 2 vectors:
u·v = x1*x2 + y1*y2
u·v = 2*(-6) + 3*4 = -12 + 12 = 0
Another way to write dot product u·v = |u|*|v|*cos α.
Because the do product = 0, we can write
|u|*|v|*cos α = 0.
That means cos α = 0, and thus α=90⁰, so vectors v and u are orthogonal.
Answer: 16/20, or reduced, 4/5
Step-by-step explanation:
Cos = adjacent / hypotenuse
Cos = 16/20
3 409 653.453435 / (-45) =
-75770.076743
Answer:
1/8 tablespoons
Step-by-step explanation:
Since the child needs to take 1/2 tablespoons off medicine per day in 4 equal doses, you will divide the 1/2 tablespoons into 4 equal doses, so you need to divide by 4.
You can do this by multiplying 1/2 by 1/4.