How t o solve negative square root of 169
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1 answer:
The answer to the question is -13
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Answer:
n = 8
Step-by-step explanation:
2n - 5 = 11
2n = 11 + 5
2n = 16
n = 16/2
n = 8
Answer:
2 acutes and one right angle
Step-by-step explanation:
one right angle equals to two acutes and one right
Answer:
If its multiple choice then any number between 7 and 8 but closer the 8 should be the answer. If not, then I don't know
Step-by-step explanation:
92.54/12 = 7.71
Use the cosine law to find the length of side 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}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%20c%5E2%3D1%5E2%2B9%5E2-2%281%29%289%29%5Ccos%2060%20%5C%5C%20c%5E2%3D1%2B81-18%5Ccos%2060%20%5C%5C%20c%5E2%3D82-18%5Ccos%2060%20%5C%5C%20c%5E2%3D82-9%20%5C%5C%20c%5E2%3D73%20%5C%5C%20c%3D%5Csqrt%5B%5D%7B73%7D%20%5C%5C%20c%5Capprox8.54%20%5Cend%7Bgathered%7D)
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}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%20%20%5C%5C%20%5Cfrac%7B%5Csin%20A%7D%7Ba%7D%3D%5Cfrac%7B%5Csin%20B%7D%7Bb%7D%3D%5Cfrac%7B%5Csin%20C%7D%7Bc%7D%20%5C%5C%20%20%5C%5C%20To%5Ctext%7B%20find%20angle%20A%3A%7D%20%5C%5C%20%5Cfrac%7B%5Csin%20A%7D%7Ba%7D%3D%5Cfrac%7B%5Csin%20C%7D%7Bc%7D%20%5C%5C%20%20%5C%5C%20%5Cfrac%7B%5Csin%20A%7D%7B1%7D%3D%5Cfrac%7B%5Csin%2060%7D%7B%5Csqrt%5B%5D%7B73%7D%7D%20%5C%5C%20%20%5C%5C%20%5Csin%20A%3D%5Cfrac%7B%5Csin%2060%7D%7B%5Csqrt%5B%5D%7B73%7D%7D%20%5C%5C%20%20%5C%5C%20A%3D%5Csin%20%5E%7B-1%7D%28%5Cfrac%7B%5Csin60%7D%7B%5Csqrt%5B%5D%7B73%7D%7D%29%20%5C%5C%20%20%5C%5C%20A%5Capprox5.82%C2%BA%20%5Cend%7Bgathered%7D)
Answer:
30 miles
Step-by-step explanation:
Distance = speed x time
30 minutes can be considered as ½ an hour.
60 x ½=30miles
