Answer:
Step-by-step explanation:
The digit in the millions place is 10 times the value of the digit in the hundred thousands place.
Simple way I did it was I did 100,000 Times 10 and that gives you a million. Very simple thing try not to over think it. Hope this helps
Answer:
The expected number of children that can pass the fitness test in a test session is 7.5 and the standard deviation is 1.37.
Step-by-step explanation:
For each children, there are only two possible outcomes. Either they pass the health test, or they do not. Whether a child can pass the test is independent with the test result of other children. This means that we use the binomial probability distribution to solve this question.
Binomial probability distribution
Probability of exactly x sucesses on n repeated trials, with p probability.
The expected value of the binomial distribution is:
The standard deviation of the binomial distribution is:
The probability for each child to pass the fitness test is 0.75
This means that
10 independent children
This means that Find the expectation and standard deviation of the number of children can pass the fitness test in a test session.
The expected number of children that can pass the fitness test in a test session is 7.5 and the standard deviation is 1.37.
Answer:
5.0645km
Step-by-step explanation:
For the first part of the journey where Vail skied 2 km north, 2 km west
displacement = √2² + (-2)²
displacement = √4+4
displacement = √8
displacement = 2√2 km
d1 = 2√2 km
For the second part of the journey where he skeid 1 km north, and 2 km west. How far was she from her starting point?
displacement = √1² + (-2)²
displacement = √1+4
displacement = √5
d2 = √5 km
Total displacement = d1 + d2
Total displacement = 2√2 + √5
Total displacement = 2(1.4142) + 2.2361
Total displacement = 2.8284+ 2.2361
Total displacement = 5.0645km
Hence she was 5.0645km from her starting point
She can run 8 miles because every mile it takes 8 minutes to do so all you had to do was divide 64 and 8