Answer: 15 miles
<u>Step-by-step explanation:</u>
2/3 of the way is 30 miles
Let x represent the total distance to grandmother's house, then
Since the total distance is 45 and they have already driven 30 miles, there is 15 miles to go
The manufacturer of a certain type of new cell phone battery claims that the average life span of the batteries is 500 charges;
that is, the battery can be charged at least 500 times before failing. To investigate the claim, a consumer group will select a random sample of cell phones with the new battery and use the phones through 500 charges of the battery.a. If the claim is true, what is P( X ≤ 36.7) ?b. Based on the answer to part (a), if the claim is true, is a sample mean lifetime of 36.7 hours unusually short?c. If the sample mean lifetime of the 100 batteries were 36.7 hours, would you find the manufacturer's claim to be plausible? Explain.d. If the claim is true, what is P( X ≤ 39.8)?e. Based on the answer to part (d), if the claim is true, is a sample mean lifetime of 39.8 hours unusually short?f. If the sample mean lifetime of the 100 batteries were 39.8 hours, would you find the manufacturer's claim to be plausible? Explain.
1 answer:
You might be interested in
Answer:
<h2>Number 40 appeared in Pattern B. Also, according to the rule, each pattern will increase.</h2>Step-by-step explanation:
Let's develop each sequence. Remembe that the rule is "add 15", that's what we need to create each sequence starting from the given initial number.
<h3>Pattern A.</h3>As you can observe, number 40 appeared in Pattern B. Also, according to the rule, each pattern will increase.