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masya89 [10]
3 years ago
6

If f(x) = 3/x+2 -sqrt x-3. complete the following statement. Round to the nearest hundredths.

Mathematics
2 answers:
Inessa05 [86]3 years ago
7 0
Assuming you mean f(x)=\frac{3}{x+2}-\sqrt{x-3}

subsitute
f(x)=\frac{3}{x+2}-\sqrt{x-3}
f(7)=\frac{3}{7+2}-\sqrt{7-3}
f(7)=\frac{3}{9}-\sqrt{4}
f(7)=\frac{1}{3}-2
f(7)=\frac{1}{3}-\frac{6}{3}
f(7)=\frac{-5}{3}
f(7)≈1.6666
round
f(7)=1.67
lesya [120]3 years ago
4 0

Answer:

-1.67

Step-by-step explanation:

We are given  that

f(x)=\frac{3}{x+2}-\sqrt{x-3}

We have to find the value of f(7).

Substitute x=7

Then, we get

f(7)=\frac{3}{7+2}-\sqrt{7-3}

f(7)=\frac{3}{9}-\sqrt4

f(7)=\frac{1}{3}-2

f(7)=\frac{1-6}{3}=-\frac{5}{3}=-1.67

Hence, f(7)=-1.67

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