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greece145
22.07.2020 •
Mathematics
The picture below shows a portion of a river dam: Which of the following can be used to calculate the height of the river dam?
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Ответ:
height = 168.5
Step-by-step explanation:
SOHCAHTOA
COS 40 = height/220 height = Cos 40 x 220height = 168.5Ответ:
Answer is option c
Step-by-step explanation:
Given that the cost, c(x), for a taxi ride is given by c(x) = 2x + 4.00, where x is the number of minutes.
We find that whenever 1 minute increases cost increases by 2 dollars.
Hence rate of change of cost with respect to minute of taxi ride = 2 dollas
i.e. this is of the form y=mx+b where
m =2 is the slope or rate of change and
b = 4 is the fixed charge even for 0 minute.
Thus option C is right