Answer:
the slope is 
Step-by-step explanation:
slope formula for linear equations:
so for the two points

Answer:
z-test.
Step-by-step explanation:
We want to perform an hypothesis test for a population mean.
In the case that the <u>standard deviation of the population is known</u> and the population distribution is normal, even if the sample is small, <u>we will use a z-test</u>.
The usual case is to not know the standard deviation of the population, in which case a t-test is adequate instead of a z-test, taking into account the degrees of freedom of the sample.
Answer:
The equation that can be used to find d is 

Step-by-step explanation:
Let
d -----> the number of dogs
we know that
The linear equation that represent this situation is

Solve for d
Subtract 17 both sides


Divide by 2 both sides

Answer:
A) 3500
Step-by-step explanation:
C(x) = 0.75x + 3500
C(x) = Total cost
0.75x = variable cost
3,500 = fixed cost
The fixed cost of the function = 3,500
Variable cost refers to cost of production that changes during production such as cost of raw material, wages of workers etc.
Fixed cost are cost of production that remains the same (does not change) with the production process such as building, machineries etc
Total cost is the addition of all cost of production, that is, the addition of fixed cost and variable cost

Option ( C ) is the correct answer.