The answer is: [C]: " f(x) = 0.7(5)ˣ " .
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Explanation:
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From all the answer choices given;
Answer choice: [C]: " f(x) = 0.7 (5)ˣ " ; is the answer choice with a "positive number"; {which is then multiplied by: [ a "positive whole number" or a "positive number greater than "1"; that is raised to a "positive variable"] .
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How I solved this: Further Explanation:
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A positive number multiplied by a {"number less than 1; raised to "x"] would result in increasingly lower values as "x" increases. Same with "raised to "negative x" {refer to "Answer choice [D]" }.
The answer is 1.58 m/s, That is the speed traveling 400m in 253 seconds!
1.) It would be: 12/600 * 100 = 12/6 = 2
So, your final answer is 2
2.) It would be: 20 * 0.15 = 3
So, your final answer is 3
Hope this helps!