There are49 students on a tour. Each guide can take 5 students. How many guides are needed?Explain.

Select the lengths in centimeters that would form a right triangle

20 points for the answer. this is for real , don't put random ! a rectangle has a length of 4 centimeters and a width of 7 centimeters. what is the effect on the perimeter when the dimensions are multiplied by 5? the perimeter is increased by a factor of 5. the perimeter is increased by a factor of 20. the perimeter is increased by a factor of 25. the perimeter is increased by a factor of 100.

What are the solutions of the equation x4 + 6x2 + 5 = 0? use u substitution to solve.