a variable is anything that takes place of a number , such as ‘x’ or ‘y’ , it’s mostly used in science and math , it’s to replace a number
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idk if its correct..but thats my ans..
ANSWER:
The triplets will be 7 years each. 21, divided by 7.
we are given the expression (4e) ^x and is asked to derive the expression. we distribute first the equations resulting to 4^x e^x = y. using the rule of products,
y = 4^x e^xy' = 4^x ln 4 e^x + 4^x e^x
The final answer is y' = 4^x ln 4 e^x + 4^x e^x
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