Answer:
-4
Step-by-step explanation:
I calculated it straight forward. lol
The volume of the bed of the truck is 2.5 x 1.5 x 1.0 = 3.75 cubic meters.
total trips = 7 / 3.75 = 1.87, round up to 2.
They will need to make 2 trips.
Using the Empirical Rule, it is found that 95% of the candies have weights between 0.7 and 0.98 gram.
<h3>What does the Empirical Rule state?</h3>
It states that, for a normally distributed random variable:
- Approximately 68% of the measures are within 1 standard deviation of the mean.
- Approximately 95% of the measures are within 2 standard deviations of the mean.
- Approximately 99.7% of the measures are within 3 standard deviations of the mean.
Researching this problem on the internet, we have that:
- The standard deviation is of 0.07.
Then 95% of the candies have weights between 0.7 and 0.98 gram, as:
More can be learned about the Empirical Rule at brainly.com/question/24537145
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Short answer: C
Remark
Since b is all by itself in equation 2, Substitute it into equation 1.
2a + 3b = 5
b = a - 5 Put this result in equation 1. Be sure and use brackets.
2a + 3(a - 5) = 5 Remove the brackets.
2a + 3a - 15 = 5 Notice the -5 inside the brackets becomes - 15
Combine like terms on the left.
5a - 15 = 5 Add 15 to both sides
5a = 5 + 15
5a = 20 Divide by 5
a = 20/5
a = 4
So far, c is the only possible answer.
b = a - 5
b = 4 - 5
b = - 1
Answer:
It's the last one. We know it's to the right because the -8 is in the exponent and also, it's -8 not +8.
