Option B gives the correct answer.The step by step solution using the FOIL method of multiplication is given below:
Tan θ=opposite/adjacent
= 4/3
=1.333
I’m not sure if that’s how it’s done but…
Answer:
Step-by-step explanation:
Part a: For variable X using z score you have (x-30)/10, replace X for this expression in (a), i mean Z=2+10((x-30)/10) = 2+x-30= put this in the way of z score = (x-18)/1, so the mean is 18 and standard deviation is 1.
Part b: Z=X+Y= (x-30)/10 + (x-20)/8 = solve adding fractions = (18x-440)/80 now divide all the numbers between 18 (because you need to show as z score way) = (x-24.4)/4.4, so the mean is 24.4 and standard deviation is 4.4.
For part c,do the same.
Answer:
5
Step-by-step explanation:
m=(y2-y1)/(x2-x1)
=(12-2)/(5-3)
=5
