Answer:
266.24
Step-by-step explanation:
y=320-3.84d
d represents number of days
320-3.84(14)
=320-53.76
=266.24
Answer:
(-16,2)
Step-by-step explanation:
x= −8y
−x+y= 18
substitute for x:
-(-8y) + y = 18
8y + y = 18
9y = 18
divide both sides by 9:
y = 2
x = -8(2) = -16
Answer:
26.17%
Step-by-step explanation:
P(Grey) = 1/4
P(Grey at least 2 times in 4) = 1 - P(no Grey in 4) - P(1 Grey in 4)
P(no Grey in 4) = 4C0 * 3/4 * 3/4 * 3/4 * 3/4 = 81/256
P(1 Grey in 4) = 4C1 * 1/4 * 3/4 * 3/4 * 3/4 = 27/64
P(Grey at least 2 times in 4) = 1 - 81/256 - 27/64 = (256-81-108)/256=67/256=26.17%
Answer:
Sin195* = -
Cos195* = - 
Step-by-step explanation: