Answer:
Step-by-step explanation:
Let X = the monthly charges for cell phone plans
X is N(63, 17)
a) Normal curve with mean =63 and std dev =17
Find attachment
b) X<46
Since area = 0.1587, we get probability = 0.1587
P(X<46) = 0.1587
Answer: The answer is B. -0.207519
Step-by-step explanation:
Its correct because i took the quiz and got it right.
Answer:
Step-by-step explanation:
Answer:
x = 15, Angles are both 130!
Step-by-step explanation:
Since this is an example of Alternate Exterior Angles, you could set these equal to eachother!
9x-5 = 7x + 25
-7x -7x
Subtract 7x from both sides.
2x - 5 = 25
+5 +5
Add 5 to both sides.
2x = 30
Divide by two to get x by itself .
x = 15, now you can plug this in for X and get the angle
9(15) - 5 = 130
Answer:
56
Step-by-step explanation:
42 / 3 = brother's amount = 14
14 + 42 = 56