Answer:
Step-by-step explanation:
AB = 8x + 5
BC = 5x² - 16
5x² - 16 = 8x + 5
5x² - 8x - 21 = 0
Quadratic formula
x = [8 ± √(8² – 4·5(-21))] / [2·5]
= [8 ± √484] / 10
= [8 ± 22] /10
= -1.4, 3
-1.4 is an extraneous solution.
x = 3
AB = 8x+5 = 29
AC = 58
Answer:
draw a straight line with a ruler through the points (0,0) and (3,1)
Step-by-step explanation:
since your equation is linear, you need to use a ruler to graph, put in 0 and 3 to get 0 and 1, respectively, and draw a line through the two points on a graph
Answer:it is d because on the chart it is 5 and 2 and your round
Step-by-step explanation:7 times 5 28 equal 30 hope helped correct if wrong
