Answer:
the slope is negative 1
Step-by-step explanation:
(x - 1)(x - 2)(x + 2)
note that the sum of the coefficients 1 - 1 - 4 + 4 = 0
thus x = 1 is a root and (x - 1 ) is a factor
dividing x³ - x² - 4x + 4 by (x - 1)
x³ - x² - 4x + 4 = (x - 1)(x² - 4 ) (note (x² - 4 ) is a difference of squares )
x³ - x² - 4x + 4 = (x - 1)(x - 2)(x + 2)
(x - 1)(x - 2)(x + 2 ) =0
x - 1 = 0 ⇒ x = 1
x - 2 = 0 ⇒ x = 2
x + 2 = 0 ⇒ x = - 2
solutions are x = 1 or x = ± 2
Answer:
160 cubic meters
Step-by-step explanation:
Volume = l*w*h
= 8*5*4
=40*4
=160 cubic meters
The angle formed by the intersection of 2 tangents outside the circle equals half the difference of the intercepted arcs.
arc AC = 160° (given)
arc ADC = 360 - 160 = 200°
∠ABC = (200-160)/2=
20° ← answer