Answer:
by dividing 6,400 by 2,000
Step-by-step explanation:
We know that 2000 pounds equals 1 ton
To convert 6400 pounds to tons, we need to
6400 pounds * 1 ton/2000 pounds
Divide 6400 by 2000
What is this supposed to be ?
3. A
2. C
Idk if you should repost this with a better pic though
Congruent since all angles are equivalent to each other.
Answer: 0.0228
Step-by-step explanation:
Given : The mean and the standard deviation of finish times (in minutes) for this event are respectively as :-

If the distribution of finish times is approximately bell-shaped and symmetric, then it must be normally distributed.
Let X be the random variable that represents the finish times for this event.
z score : 

Now, the probability of runners who finish in under 19 minutes by using standard normal distribution table :-

Hence, the approximate proportion of runners who finish in under 19 minutes = 0.0228