7 and 1/2+6 and 3/4+7 and 1/3=7+1/2+6+3/4+7+1/3=7+6+7+1/2+3/4+1/3=20+1/2+3/4+1/3
convert bottom nubmer to same (12)
1/2 times 6/6=6/12
3/4 times 3/3=9/12
1/3 times 4/4=4/12
20+6/12+9/12+4/12=20+19/12=20+1+7/12=21+7/12=21 and 7/12
answer is 21 and 7/12 hour or 21.58 hour or 21 hour and 35 minutes

4 0

3 years ago

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I set a timer for 3 hours, there is 1 hour, 27 minutes, and 28 seconds left, how much did I read for?

Tom [10]

Answer:

You read for 1 hours 33 minutes and 32 seconds more

5 0

3 years ago

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Solve the triangle. a=1, b=9, C=60 degrees Find the approximation of c≈A≈B≈

tigry1 [53]

Use the cosine law to find the length of side c:

$c^2=a^2+b^2-2ab\cos C$ $\begin{gathered} c^2=1^2+9^2-2(1)(9)\cos 60 \\ c^2=1+81-18\cos 60 \\ c^2=82-18\cos 60 \\ c^2=82-9 \\ c^2=73 \\ c=\sqrt[]{73} \\ c\approx8.54 \end{gathered}$

Use the cosine law to find the measure of angles A or B:

$\begin{gathered} \\ \frac{\sin A}{a}=\frac{\sin B}{b}=\frac{\sin C}{c} \\ \\ To\text{ find angle A:} \\ \frac{\sin A}{a}=\frac{\sin C}{c} \\ \\ \frac{\sin A}{1}=\frac{\sin 60}{\sqrt[]{73}} \\ \\ \sin A=\frac{\sin 60}{\sqrt[]{73}} \\ \\ A=\sin ^{-1}(\frac{\sin60}{\sqrt[]{73}}) \\ \\ A\approx5.82º \end{gathered}$

4 0

1 year ago

Please answer this question ..

Yanka [14]

Answer:

plz mark brainliest if it is correct ✌️✌️

6 0

3 years ago

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