Answer:
They use the same triangle but in different sizes to make the big triangle.
Step-by-step explanation:
x represents how many are sold. then multiply 80×3
then add your x together
then you must divide your x by 3440
8 is how many higher-priced speakers take you 8 and multiple it by 3 to get how many lower-priced speakers
you have 24 low priced speaker and 8 high priced speakers.
The area of the cross section is in the shape of a triangle.
Answer:
caca
Step-by-step explanation:
Answer:
0.0003
Step-by-step explanation:
for the indicated probability
we need to find : Probability (P) ( X > or = 30) = 1 - P( X < 30 )
z-score(30) = (30 - 14.6)/3.8 = 4.053
looking in z-tables for the corresponding probability
P(x<30) = 0.99997
indicated probability
P ( X > or = 30) = 1 - 0.99997 = 0.0003 (answer)