Solve for z 10z − 7z = 3
2 answers:
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Answer:
The 5-hour decay factor is 0.4927.
Step-by-step explanation:
The amount of caffeine in Trent's body decreases exponentially.
The 10-hour decay factor for the number of mg of caffeine is 0.2428.
The 1-hour decay factor is:
Compute the 5-hour decay factor as follows:
Thus, the 5-hour decay factor is 0.4927.
Given:
The coordinates of point A are (7,4).
It is dilated from the origin by a scale factor r = 3.
To find:
The coordinates of A'.
Solution:
If a figure is dilated from the origin by a scale factor k, then
Here, the figure is dilated from the origin by a scale factor 3, so the rule of dilation is given by:
Using this rule, we get
Therefore, the coordinates of point A' are (21,12).