Answer:
Step-by-step explanation:
4
Answer:
0.80
Step-by-step explanation:
The z-score is found from the formula ...
Z = (X -μ)/σ
Z = (77 -73)/5 = 4/5 = 0.80
Jennifer's Z-score was 0.80.
Answer:
12x-3
Step-by-step explanation:
Perimeter is : 3*(4x-1)
By the triangle inequality theorem we know that
b - a < c < a+b
where a and b are the given sides; c is the unknown side
In this case,
a = 12
b = 13
c = n
So,
b-a < n < b+a
13-12 < n < 13+12
1 < n < 25
So n is both greater than 1 and also less than 25
Broken up, this means n > 1 and n < 25
So it looks like the only answer is choice A. Choices C and D seem to have typos in them? Something seems off about them.
