If the x is squared, the parabola is vertical (opens up or down). If the y is squared, it is horizontal (opens left or right). If a is positive, the parabola opens up or to the right. If it is negative, it opens down or to the left.
Answer:
z = -1
Step-by-step explanation:
add like terms: 13z = -13
divide both sides by 13: z = -1
Answer:
$109.99
Step-by-step explanation:
You just have to multiply 10x10.99
Step-by-step explanation:
Answer:
10/11
Step-by-step explanation:
35 stringed , 5 string and brass, 10 brass, 5 play neither string nor brass
P (A or B ) = students that play string or brass / total number of students = 35+5+10/ 35+5+10+5 = 50/55 = 10/11
