Answer:
47
Step-by-step explanation:
The order of operations is encoded in PEMDAS, or Parentheses, Exponents, Multiplication and Division, and Addition and Subtraction. Because there is only addition and subtraction, we just calculate it from left to right: 42 + 7 - 2 = 49 - 2 = 47.
The answer is 1,1500 because you ha e to subtract the lowest to highest number
9514 1404 393
Answer:
x = 31
Step-by-step explanation:
The sum of angles in a triangle is 180°.
98° +51° +x° = 180°
x° = 31° . . . . . . . . . . . . subtract 149°
x = 31
Answer:
The expected number of students is 79
Step-by-step explanation:
She find that she can model the data with the normal distribution. The formula for normal distribution is expressed as
z = (x - u)/s
Where
x = the time it takes for Ivy Tech students to travel to school.
u = mean time
s = standard deviation
From the information given,
u = 27.5 minutes
s = 5.2 minutes
The probability that a student's commute time would be less than 22.3 minutes is expressed as
P(x lesser than 22.3)
For x = 22.3
z = (22.3 - 27.5)/5.2 = - 1
Looking at the normal distribution table, the corresponding value for a z score of - 1 is 0.15866
The number if students out of 500 whose commute time would be less than 22.3 minutes would be
0.15866 × 500 = 79
Answer:
The answer is -2 1/2
Step-by-step explanation: