Answer:
8 hours
Step-by-step explanation:
10.5km/3 = 3.5km/h
28km/3.5 = 8 hours
Answer:
Option B. 0.71
Step-by-step explanation:
There are 200 males and 300 female employees in the company.
The percentage of its employees are given who stayed for at least 1, 2 and 3 years.
1 year 2 years 3 years
Male 0.67 0.45 0.20
Female 0.73 0.64 0.39
Number of male employees who stayed at least one year = 0.67 × 200
= 134
Number of female employees who stayed at least 1 year = 0.73 × 300
= 219
Total employees who stayed at least 1 year = 134 + 219 = 353
Total employees in the company = 200 (males) + 300 (females)
= 500 employees
Probability that an employee stayed for at least one year = 
= 0.706 ≈ 0.71
Option B 0.71 is the answer.
9514 1404 393
Answer:
B. 3x² +2 = 0
Step-by-step explanation:
The equation of A has a couple of real roots. We're pretty sure there are complex numbers that will satisfy this equation, but we don't know how to find them. (We suspect a typo, and that the equation is supposed to be 2x² +1 = 7x, which has only real roots.)
__
The equation of B can be rewritten as ...
x² = -2/3
This will have complex roots.
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The discriminants of both equations C and D are positive, so those have only real roots.
2x² -5x -1 ⇒ d = (-5)² -4(2)(-1) = 33
3x² -6x -1 ⇒ d = (-6)² -4(3)(-1) = 48
Answer:
3.92
Step-by-step explanation: