The quadratic equation 4x^2 +4xk+9, k> 0 has exactly one solution for x. find the value of k

Use the elimination method to solve the system of equations -x+5y=-4 and 4x+3y=16

Enter the missing numbers in the boxes to complete the table of equivalent ratios.time (min) distance (km)? 36 9? 1512 ?

Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.