Viết phương trình chuẩn tắc với các siêu mặt bậc hai x²-3y²+8xy+x+y+1=0

Find the required measurements of the following trapezoids. a = 8 cm b = 16 cm h = 10 cm

The parabola x= √y-9 opens: a.)up b.)down c.)right d.)left

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.