Answer:
P(x>278) is 0.16
Step-by-step explanation:
We are given that a normal distribution has a mean of 266 and a standard deviation of 12.
Mean = 
Standard deviation =
We are supposed to find P(x > 278)
So, Formula : 
Z=1
Refer the z table for p value
p value = 0.8413
P(x<278) is 0.84
P(x>278)=1-P(x<278)=1-0.84=0.16
Option A is true
Hence P(x>278) is 0.16
Answer:30,41,66
Step-by-step explanation:
(X+7)+(2x-5)+(3x-3)=137
Solve for x
X=23 cm
Sides are 23+7=30
2*23-5=41
3*23-3=66
The improper integral diverges
Answer:
7 worms
Step-by-step explanation:
Let each can have x worms, so we can say
Luis has 4x worms
Diego has 3x + 2 worms
Cecil has 2x worms
Since, in total they have 65 worms, we can write and equation and solve:
4x + 3x + 2 + 2x = 65
9x + 2 = 65
9x = 63
x = 63/9
x = 7
There are 7 worms in each can.
Answer:
a) Option 2
b) 12
Step-by-step explanation:
Possible outcomes can be obtained using:
1) A tree diagram
2) The counting principle
4 options for the first trial, 3 for the second
4 × 3 = 12
