Y = -x2 - 5x + 12
Solve by using the quadratic formula

The ratio of the measures of the three angles in a triangle is 2: 9: 4. find the measures of the angels

The expression 1.01*1.005(^t) gives the amount of money, in thousands of dollars, in carter's savings account (t) years after he opens it. what does 1.01 represent in this expression?

The difference of three and the reciprocal of a number is equal to the quotient of 20 and the number. find the number.