Precalculus check answers help!
posted by Kelsey on .
16. Find the distance between P (–2, 5) and the line with equation x – 3y + 4 = 0. (1 point)
17(sqrt10)/ 10
0
17(sqrt10)/ 10
13(sqrt10)/ 10 ~
17. Find the distance between the lines with equations 5x + 12y = 12 and y = –x + 3. (1 point)
24/13 ~
48/13
48/13
48/17
18. Find an equation of the line that bisects the acute angles formed by the lines with equations 2x + y – 5 = 0 and 3x – 2y + 6 = 0. (1 point)
(2SQRT133SQRT5)x+(SQRT13+2SQRT5)y5SQ…
(2SQRT133SQRT5)x+(SQRT13+2SQRT5)y+5… ~
(2SQRT13+3SQRT5)x+(SQRT132SQRT5)y+5…
(2SQRT133SQRT5)x+(SQRT13+2SQRT5)y+5…
19. Find an equation of the line that bisects the acute angles formed by the lines with equations 4x + y + 3 = 0 and x + y – 2 = 0. (1 point)
(4SQRT2+SQRT17)x + (SQRT2+SQRT17)y + 3SQRT2  2SQRT17 = 0
(SQRT2+SQRT17)x  (4SQRT2+SQRT17)y + 3SQRT2 + 2SQRT17 = 0
(4SQRT2SQRT17)x + (SQRT2+SQRT17)y + 3SQRT2 + 2SQRT17 = 0 ~
(SQRT2SQRT17)x  (4SQRT2+SQRT17)y  3SQRT2  2SQRT17 = 0
20. If 90° < < 180°, express cos in terms of tan . (1 point)
SQRT(1/ 1 + tan^2 theta) ~
SQRT(1/ 1 + tan^2 theta)
SQRT(1 + tan^2 theta)
SQRT(1 + tan^2 theta)
the one with ~ are my answers

Were these right???????