Answer:
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Answer:
Step-by-step explanation:
<u>Use the law of cosines:</u>
- cos C = (25² + 27² - 28²)/(2*25*27)
- cos C = 0.4222
- m∠C = arccos 0.4222
- m∠C = 65°
Answer:
![x=-1](https://tex.z-dn.net/?f=x%3D-1)
Step-by-step explanation:
![4=6+2x](https://tex.z-dn.net/?f=4%3D6%2B2x)
Flip the equation:
![2x+6=4](https://tex.z-dn.net/?f=2x%2B6%3D4)
Subtract 6 from both sides:
![3x+6-6=4-6](https://tex.z-dn.net/?f=3x%2B6-6%3D4-6)
![2x=-2](https://tex.z-dn.net/?f=2x%3D-2)
Divide both sides by 2:
![2x/2=-2/2](https://tex.z-dn.net/?f=2x%2F2%3D-2%2F2)
![x=-1](https://tex.z-dn.net/?f=x%3D-1)
Answer:
y + 1 = 4(x + 3)
Step-by-step explanation:
Use the point-slope form of the equation of a straight line:
y - k = m(x - h), where (h,k) is a point on the line:
Here,
y + 1 = 4(x+3) (Answer 2 on the list)