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frosja888 [35]
3 years ago
8

Evaluate 2r(t + 7) if r = 4 and t = 2.

Mathematics
1 answer:
Serhud [2]3 years ago
6 0
The answer is 72 all u need to do plug in the numbers where the letters are
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2^{x+5}=3^{1-x}\ \ \ \ \ /log_2()\\\\log_22^{x+5}=log_23^{1-x}\\\\x+5=(1-x)log_23\\\\x+5=log_23-xlog_23\\\\x+xlog_23=log_23-5\\\\x(1+log_23)=log_23-5\ \ \ \ /:(1+log_23)

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\bf \textit{total surface area of a cone}\\\\
s=\pi r\sqrt{r^2+h^2}+\pi r^2\quad 
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