I have like 8 problems (out of I think 70) I don't get. Some explanations would be lovely! If you could help with any I would appreciate that so much!
1.) Solve 5x^2+3x-4=0 by completing the square
2.) Find the number of complex roots of . Then find the roots and graph the related function.
3.) Find the inner product and tell whether the vectors are perpendicular. ,
4.) If q is between and find .
5.) Find the value of tanArccos.
6.) Find the area of a sector with a central angle of and a radius of 18.8 m. Round to the nearest tenth.
7.) For a circle of radius 9 feet, find the arc length s subtended by a central angle of
8.) Use the rational-root theorem to find the roots of .
I really need help with this. I feel like this guy ---> right about now.