Verify that the segments lengths form a triangle. Is the triangle acute, right or obtuse? 12, 16 and 20

Simplify:

a. √300 b. 4√10-√10

Explanation:17. Simplify by rationalizing the denominator: (-√18)/√12

18. Solve:

a. √k – 8 = 28 b. √(2x+4) = √3x

19. What is the length of the hypotenuse of a right triangle if the two legs are 21 and 20?

20. What is the length of one leg of a right triangle if the hypotenuse is 17 and one leg is 8?

21. What is the value of sin 67?? (make sure your calculator is set to degrees!)

Unit 5: Rational Expressions and functions

22. Divide by long division:

(3d^2+2d-29)/(d+3)

23. Simplify:

a. (4-c)/(2c-8) b. (2s^2-5s-12)/(2s^2-9s+4)

24. Solve: 3/(m-4)+1/(3(m-4))=6/m

25. Identify the asymptote(s) of this function: y=5/(x-4)+1

a is the answer i believe.