Answer:
b+3a
Step-by-step explanation:
MN=AN+AM
AN=0.5*AB
AB=OA+OB=4a+2b
AN=2a+b
AM=OA-OM=4a-3a=a
MN=2a+b+a=3a+b
Y=x-4
x=y+4
y=-3(y+4)
y=-3y-12
4y=-12
y=-3
x=1
Answer:
B) Approximately normal, with mean -0.05 and standard deviation 0.083
Step-by-step explanation:
The correct answer is (B). The shape is approximately normal since the expected number of makes and misses for both Daren and Josh are all greater than 10.
Here is the math:
January-About 5
Febuary-About 4
March-About 4
In all there is about 13 weeks between those 3 months.
~Deceptiøn
The estimated portion of light bulbs that last more than 500 hours will be
x=∑xn=224/430=0.521=52.1%
