Stephanie has scores of 99, 90, and 88 on her algebra 2 tests. use a compound inequality to find the range of scores she can make on her final exam to receive a b in the course. a b is received if the final course average is between an 85 to a 93, inclusive. show your work!

ian gonna lie that is way to much

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18

answer: both chords and diameters have two endpoints on a circle. diameters must intersect the center of a circle.

answer: 4  

the square root of 16 is 4. it is a very simple mathematic concept. a square root when a number multiplied by itself will result in a number. here, the number 16 comes when 4 is multiplied by 4. hence the square root of 16 is 4. you can always figure out a square root by the inverse operation of squaring.