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3 years ago

9

Pleasee help !!!!! In the expression (x + y)18, if x = 0.8 and y = 0.2, what is the numerical value of the fifth term of the exp

ansion?
0.703
0.215
0.882
0.903

2 answers:

NNADVOKAT [17]3 years ago

8 0

The answer to this problem is 0.215

eduard3 years ago

5 0

Answer: if you are usint plato, the answer is B. or 0.215

Step-by-step explanation:

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Therefore we can write $5y\hspace{0.1cm} = (x+3)^{2} + \frac{1}{2} - 4 \hspace{0.3cm} \Rightarrow \hspace{0.2cm} 5y = (x+3)^{2} - \frac{7}{2} \hspace{0.3cm} \Rightarrow \hspace{0.3cm} y = \frac{(x+3)^{2}}{5} - \frac{7}{10}$

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Now we write the above equation with only y on the Left hand side and we will obtain the inverse of the given function

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