At 4pm, shawn leaves his house and drives to the park. he gets to the park at 5pm. his brother sam leaves their house at the same time and drives to the beach, 30 miles past the park in the same direction. sam got to the beach at 5: 30pm. if both shawn and sam drove the same speed for the entire trip, what was their speed in miles per hour?

answer:

,,

step-by-step explanation:

the sum of the lengths of any two sides of a triangle is greater than the length of the third side. if you take the three sides of a triangle and add them in pairs, the sum is greater than (not equal to) the third side. if that is not true, then it is not possible to construct a triangle with the given side lengths.

step-by-step explanation:

225x²+4=0

225x²=0-4

225x²=-4

x²=-4/225

x=±√-4/225