Laura has 23 coins in a jar. the jar contains only dimes and quarters. if the coins are worth $4.85, how many dimes does laura have?

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

Secant be and cf intersect at point d inside a what is the measure of cde

How can you use synthetic substitution to tell whether a given binomial is a factor of a polynomial?