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atroni [7]
3 years ago
15

PLEASEEEEE HELP f(x) = 2x^2+ 6 when f (4)

Mathematics
1 answer:
kompoz [17]3 years ago
5 0
Hopefully this is right!

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Find the area of the shaded region ​
o-na [289]

so hmmm let's get the area of the whole hexagon, and then get the area of the circle inside it, then <u>subtract the area of the circle from that of the hexagon's</u>, what's leftover is what we didn't subtract, namely the shaded part.

\textit{area of a regular polygon}\\\\ A=\cfrac{1}{4}ns^2\cot\stackrel{\stackrel{degrees}{\downarrow }}{\left( \frac{180}{n} \right)}~ \begin{cases} n=\textit{number of sides}\\ s=\textit{length of a side}\\[-0.5em] \hrulefill\\ n=\stackrel{hexagon}{6}\\ s=\frac{9}{2} \end{cases}\implies A=\cfrac{1}{4}(6)\left( \cfrac{9}{2} \right)^2 \cot\left( \cfrac{180}{6} \right)

A=\cfrac{1}{4}(6)\cfrac{9^2}{2^2} \cot(30^o)\implies A=\cfrac{243}{8}\cot(30^o)\implies A=\cfrac{243\sqrt{3}}{8} \\\\[-0.35em] ~\dotfill\\\\ \textit{area of circle}\\\\ A=\pi r^2~~ \begin{cases} r=radius\\[-0.5em] \hrulefill\\ r=\frac{4}{5} \end{cases}\implies A=\pi \left( \cfrac{4}{5} \right)^2\implies A=\cfrac{16\pi }{25} \\\\[-0.35em] ~\dotfill

\stackrel{\textit{area of the hexagon}}{\cfrac{243\sqrt{3}}{8}}~~ - ~~\stackrel{\textit{area of the circle}}{\cfrac{16\pi }{25}}\implies \cfrac{6075\sqrt{3}-128\pi }{200}

5 0
2 years ago
Blain exchanges $100 for yen before going to Japan. If each U.S. dollar is worth 88.353 yen, how many yen should Blain receive?
Tcecarenko [31]
To figure out how many yen all ya have to do is multiply 88.353 by 100 to get the answer 8835.3 yen.
5 0
3 years ago
Read 2 more answers
If you wanted to make the graph of y=5x+3 les steep, which equation could you use?
stepan [7]

B

the equation of a line in slope-intercept form is

y = mx + c ( m is the slope and c the y-intercept )

y = 5x + 3 is in this form with slope m = 5

To decrease the slope we require a smaller, positive value for m

y = x + 3 has m = 1 which is less than 5 and positive

y = x + 3 is less steep than y = 5x + 3



6 0
3 years ago
A community center with 700
Nezavi [6.7K]

Answer:

8%

Step-by-step explanation:

divide number of teenagers by total and the multiply by 100... this is very basic

7 0
3 years ago
Read 2 more answers
Simplify the following fraction: 12/16
mihalych1998 [28]

\huge\text{Hey there!}

\large\text{SIMPLIFY THE following FRACTION: } \mathsf{\dfrac{12}{16}}

\large\text{FINDING the numerator GCF (Greatest Common Factor)}

\large\text{12: 1,2,3,4,6,12}

\large\text{16: 1, 2, 4, 8, 16}

\large\text{GCF (Greatest Common Factor): 4}

\large\text{So, we will DIVIDE the numerator and the denominator from 4.}\\\bullet\large\text{Numerator}\rightarrow\large\text{\bf TOP NUMBER}\\\bullet\large\text{Denominator}\rightarrow\large\text{\bf BOTTOM NUMBER}

\mathsf{\dfrac{12\div4}{16\div4}}

\mathsf{12 \div 4 = \bf 3}\leftarrow\large\text{NUMERATOR}

\mathsf{16\div 4 = \bf 4}\leftarrow\large\text{DENOMINATOR}

\boxed{\boxed{\large\text{Answer: }\mathsf{\bf \dfrac{3}{4}}}}\huge\checkmark

\text{Good luck on your assignment and enjoy your day!}

~\frak{Amphitrite1040:)}

8 0
3 years ago
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