If A = James's present age, write an expression for his age seven years from now.
1 answer:
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Answer:
n = 15
Step-by-step explanation:
Since the triangles are similar the corresponding sides are in proportion, that is
=
( cross- multiply )
2n = 30 ( divide both sides by 2 )
n = 15
Answer:
The correct option is D.
Step-by-step explanation:
The given graph is the graph of a cosine function, which shifts 1 unit left.
The cosine function is defined as
Where, a is amplitude, b is frequency, c is phase shift and d is vertical shift.
If c>0, then the graph shifts c units left and if c<0, then the graph shifts c units right.
Since the graph show only phase shift and the graph shifts only one unit left, therefore required function is
Option D is correct.