Answer:
156/12=13
so makes 13 dollars a hour
Hope This Helps!!!
Answer:
x=4 and y=5
Step-by-step explanation:
The given system of equations are
The matrix form is
Let as assume
then,
We know that,
Therefore, the value of x is 4 and value of y is 5.
Answer:
C
Step-by-step explanation:
f(x) × g(x)
= × (x³ - 12)
= × (x³ - 12)
= (x + 6)(x³ - 12) ← distribute the parenthesis
= - 12x + 6x³ - 72
= + 6x³ - 12x - 72
Answer:
B. Sample mean used to estimate a population mean.
C. Sample variance used to estimate a population variance.
D. Sample proportion used to estimate a population proportion.
Step-by-step explanation:
This is because the mean of the sampling distribution of the mean tends to target the population mean. Also, the mean of the sampling distribution of the variance tends to target the population variance.
This means that the sample mean and variance tend to target the population mean and variance, respectively, instead of systematically tending to underestimate or overestimate that value. This is why sample means and variances are good estimators of population means and variances, respectively. This is also true for proportions but not true for medians, ranges and standard deviations.
Answer:
c. infinitely many solutions
Step-by-step explanation: