Answer:c
explanation: its 90 degrees
good luck!
Answer:
37/40
Step-by-step explanation:
(2/3)x^2 -6x + 15 = 0
Using the quadratic formula:
x = [-b +-sq root(b^2 - 4 *a*c)] / 2a
x= [--6 +-sq root(36 -4*(2/3)*15] / 2*(2/3)
x= [6 +-sq root 36 -40] / (4/3)
x1 = 4.5 + (2i / (4/3))
x1 = 4.5 + 1.5i
x2 = 4.5 - (2i / (4/3))
x2 = 4.5 - 1.5i
2/5 ≥ x - (4/5). add 4/5 to each side
6/5 ≥ x
it would take about 6 weeks and you would both have $130
Step-by-step explanation:
it would take you 5 weeks to reach $130 and your sister 1 week to reach $130.
