Answer:
0 and 40
Step-by-step explanation:
First expression: 4*5 - (22 - 2). We must do work inside parentheses before any other work. This, we have 4*5 - (20), which simplifies to 20 - 20 = 0
Second expression: (18 - 3) + (32 - 7 becomes (15) + 25, or 40.
Answer:
Dr. Maette
Step-by-step explanation:
I'm not sure I've never read this :/
Answer:
y = (6ln(x) + C)/x
A
is not a solution to the differential equation
x²y' + xy = x²
as required. This is probably due to an error in typing either the differential equation, or the value of y.
When you've checked the correct values, the same procedure is followed in obtaining the desired result.
Step-by-step explanation:
Suppose y = (6ln(x) + C)/x
is a solution to the differential equation
x²y' + xy = x²
Differentiate y with respect to x
y' = (6/x)/x - (6ln(x) + C)/x²
= (6 - 6ln(x) - C)/x²
Using this value in the differential equation,
x²(6 - 6ln(x) - C)/x² + x(6ln(x) + C)/x
= 6 - 6ln(x) - C + 6ln(x) + C
= 6
Sampling bias occurs when some members of a population are systematically more likely to be selected in a sample than others. From this definition,
For sample 1, Every fifth person who enters Little Casesars Arena for a Red Wings game. This is not biased because no person is more likely to be selected than another
For sample 2, Every tenth name in the phone. This is also not biased
because no person is more likely to be selected than another