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MariettaO [177]
3 years ago
11

A group of students went out for lunch. The total of the food and drinks was 75.80.the sales tax was 6.25% what was the total bi

ll with out tip?round to the nearest cent
Mathematics
1 answer:
Natasha2012 [34]3 years ago
3 0
$80.54 = 75.8 x 1.0625
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The circumference of a circular garden is 141 feet. What is the radius of the garden?
evablogger [386]

Answer:

r ≈ 22.44 ft

Step-by-step explanation:

The circumference (C) of a circle is calculated as

C = 2πr ( r is the radius ), then

141 = 2πr ( divide both sides by 2π )

\frac{141}{2\pi } = r , that is

r ≈ 22.44 ft ( to the nearest hundredth )

6 0
3 years ago
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Help this is due soon
vichka [17]

Step-by-step explanation:

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Find the values of cosΘ and tanΘ, given that sinΘ = 8/9 and Θ is in quadrant I
Misha Larkins [42]
sin^2 \alpha +cos^2 \alpha =1\ \ \ and\ \ \ tan \alpha = \frac{\big{sin \alpha }}{\big{cos \alpha }} \\\\sin \alpha  =  \frac{8}{9}\\\\ \Rightarrow\ \ \ (\frac{8}{9})^2+cos^2 \alpha =1\ \ \ \Rightarrow\ \ \ cos^2 \alpha =1- \frac{64}{81} \ \ \ \Rightarrow\ \ \ cos^2 \alpha = \frac{17}{81} \\\\ \alpha \ \in\ (0^0;90^0)\ \ \ \Rightarrow\ \ \ cos \alpha >0\ \ \ \Rightarrow\ \ \ cos \alpha = \frac{ \sqrt{17} }{9} \\\\

tan \alpha = \frac{8}{9}: \frac{ \sqrt{17} }{9} =\frac{8}{9}\cdot  \frac{9}{\sqrt{17}}= \frac{8}{\sqrt{17}}= \frac{8\cdot \sqrt{17}}{\sqrt{17}\cdot \sqrt{17}}=\frac{8\cdot \sqrt{17}}{17}
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4 years ago
Solve. <br><br>2x + 4 3 <br>B) x &lt; 3 <br>B) x 1/3<br>D) x &lt; 1/3
kakasveta [241]

Answer:

c

Step-by-step explanation:

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