First question
42 students
Second question 65%
Answer:
The hidden variable is age.
Step-by-step explanation:
That does not prove that larger shoes cause more studying math or vice versa.
The children with larger shoes are most probably older so they would have done more years of studying than the younger ones.
The hidden variable is the age of the child.
Answer:
Slope of Function B = - Slope of Function A
Step-by-step explanation:
Function A
f(x) = - 2x + 1
This is in the form y = mx+b where m is the slope
The slope is -2
Function B
We have 2 points so we can calculate the slope
(0,-3) and (2,1)
m = (y2-y1)/(x2-x1)
= (1--3)/(2-0)
= (1+3)/(2-0)
=4/2
2
Slope of A = -2 Slope B =2
The are opposites
It's not a multiple choice answer is it?
The answer would be 180/20 = 9 sections.
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Hope this helps!
==jding713==
