Find two values of d such that the line 2x + y = d is tangent to the ellipse 4x2 + y2 = 36. find the points of tangency.

Lizette is training for a marathon. at 7: 00 she left her house and ran until 8: 30, then she walked until 11: 30. she covered a total distance of 18 miles. her running speed was six miles per hour faster than her walking speed. find her running and walking speeds in miles per hour.

What function has a range {yly< 5}? question on picture above^

How do you write a paragraph proof to prove that the corresponding angles shown are congruent