Tính tích phân 2 lớp:
∫∫(1+3x+2y)dxdy

What is the celsius temperature that is equal to 94 degrees fahrenheit using the formula f=9/5 c+32

The graph of a hyperbola is shown. what are the coordinates of a vertex of the hyperbola? (0, −4) (−3, 0) (0, 0) (0, 5)

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.