Answer:
the answer is x=0.36. (-20x=-7.2) divided by -20 equals to x=.36
Answer: 8:05 pm
Step-by-step explanation: 4 hours + 3 hours = 7 hours
50 min + 15 min = 1 hour, 5 min
add those together
watch out for time zones when crossing
Answer:
Estimate: 1,020
This is an underestimate
Step-by-step explanation:
To estimate we should round:
81- 80
60- stays 60
6.25- 6
9.25- 9
6x8 = 48 so mentally, 6x80 = 480
9x6 = 54 so mentally, 9x60 = 540
Now add: 480 + 540 = 1020
This would be an underestimate since we rounded everything down
If you would like me to add anything or clarify I would be happy to do that :)
Answer:
0.3557 = 35.57% probability that one selected subcomponent is longer than 118 cm.
Step-by-step explanation:
Normal Probability Distribution:
Problems of normal distributions can be solved using the z-score formula.
In a set with mean and standard deviation , the z-score of a measure X is given by:
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.
Normally distributed with a mean of 116 cm and a standard deviation of 5.4 cm.
This means that
Find the probability that one selected subcomponent is longer than 118 cm.
This is 1 subtracted by the pvalue of Z when X = 118. So
has a pvalue of 0.6443
1 - 0.6443 = 0.3557
0.3557 = 35.57% probability that one selected subcomponent is longer than 118 cm.