2nd equation: 8 x-y=10 ⇒ y= 8 x-10 We will switch that in 1st equation: 8 x-10=x²+12 x+30, or: x² + 4 x +40 = 0, a=1,B=4, c=40 Discriminant : D= b² - 4 ac= 16 - 160 = -144 and because it is negative there are no real solutions. D)
Me. drysdale earned 906.25 in interest in one year on money that he had deposited in his local bank if the bank paid an interest rate of 6.25% how much money did mr. drysdale deposit
Raymond just got done jumping at super bounce trampoline center. the total cost of his session was $43.25 . he had to pay a $7 entrance fee and $1.25 for every minute he was on the trampoline. write an equation to determine the number of minutes (t) that raymond was on the trampoline.