Answer:
B. 
Step-by-step explanation:

Hope this helps
The correct answer is B) -0.3
Z-scores are found using the formula
z = (X-μ)/σ
For this problem, we have
z = (24-24.5)/1.7 = -0.5/1.7 = -0.3
Answer:80
Step-by-step explanation:
31.205= 31
4.97=5
1.925=2
31*5/2=155/2=77.5=80 (1 significant figure)
Answer:
20
Step-by-step explanation:
set a proportion
16 x
____ = ______
80 100
by doing this you can cross multiply the terms
80x=1600
divide both sides by 80
x=1600/ 80=20
Answer:
42x² - 3x - 9
the area of the garden is:
(7x + 3)(6x - 3)
= 42x² - 21x + 18x - 9
= 42x² - 3x - 9