You are saving money to buy a pair of pants that costs $53. You have saved $32. How much more money do you need to save?
1 answer:
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Answer:
y = (5/4)2^x
Step-by-step explanation:
The function value increases by a factor of 40/10 = 4 when x increases by 2. The function can be written as ...
y = (reference value)·(growth factor)^((x -reference)/(change in x for growth factor))
y = 10·4^((x-3)/2) . . . . . . using point (3, 10) as a reference
This can be simplified to ...
y = 10·2^(x -3) = 10/8·2^x
y = (5/4)2^x
Vector 
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For the second, the magnitude is the square root of the sum of the squares of the components. This is equal to
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For the second, the magnitude is the square root of the sum of the squares of the components. This is equal to