Slope is rise over run, aka change in y divided by change in x:
Answer: -1
Robert used 34 grams of iron filings in his second experiment. This is 16 grams more than twice the number of grams he used in h
is first experiment. How many grams of iton filings did he usein his experiment.
1 answer:
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Answer:
The first 4 guests can arrive in 32,760 ways.
Step-by-step explanation:
The order in which the guests arrive is important. For example, A,B,C,D is a different outcome to B,A,C,D. So we use the permutations formula to solve this question.
Permutations formula:
The number of possible permutations of x elements from a set of n elements is given by the following formula:
In this question:
4 guests from a set of 15. So
The first 4 guests can arrive in 32,760 ways.