Aiden has $15.00 on his copy card. Each time he uses the card to make a photocopy, $0.06 is deducted from his card. Aiden wants
2 answers:
Answer:
166.66
Step-by-step explanation:
Given :
Aiden has $15.00 on his copy card.
Each time he uses the card to make a photocopy, $0.06 is deducted from his card.
Aiden wants to be sure that there will be at least $5.00 left on his card when he is finished.
To find :
What is the maximum number of copies Aiden can make?
Solution :
The inequality below relates x, the number of copies he can make, with his copy card balance.
Hence the maximum number of copies Aiden can make is 166.66
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so for an exponential function
is the function ever positive only? it can be
is it negative only? it can be
can it be both? sure thing, most of the time it's both
we can say a function f(x) is always positive when the independent values of "x" yield a positive value only, mind you that when we're talking about "the function" we're really referring to the resulting values in a set, so can the values of the output no matter what "x" we use be always positive? sure, can they also be negative only? sure, how about both? sure thing.
notice the template in the picture below, we can transform any exponential function like the one above 2ˣ with some vertical shift upwards, and is always positive, or -2ˣ with a vertical shift downwards and it's always negative, or we can stretch it about and have -2ˣ shifted upwards so sometimes is positive, and sometimes is negative.
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Answer:
n²-7n-21
Explanation:
Given the expression:
First, open the brackets:
Next, bring the like terms together and simplify: