F(a)=a^4+3a^3-17a^2+2a-7 at a=3
1 answer:
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Answer: C. 4.86
Step-by-step explanation:
Given : The two rectangles below have the same height-to-width ratio.
Since , width of blue rectangle = 34 units
Height of blue rectangle = 21 units
and width of red rectangle = w units
Height of red rectangle = 3 units
Then,
i.e.
Hence, The value of w= 4.86