The area of a rectangle is 4.9 square units. the length is 2.5 units and the width is y units. what is the value of y? y=1.96 y=2.4 y=7.4 y=12.25

Me solve this problem, and someone clearly explain to me how to solve it.1.) use the value of the discriminant to determine if the given trinomials has 2 real solutions, 1 real solution, or no real solutions.a.  x2  − 4x  − 7 = 0b. 4r2  + 11r  − 3 = 0c. 3m2  + 7 = 0d.  t2  + 2t  + 1 = 0

Angles r and s are complementary. the measure of angle r is 31 degrees. which equation can be used to find angle s?

In dire need~! describe how to use area models to find the quotient 2/3 divided by 1/5. check your work by also finding the quotient 2/3 divided by 1/5 using numerical operations only.