Answer:
Step-by-step explanation:
<u>Change in pay:</u>
<u>Percent of change:</u>
- 1.25/11.50*100% = 10.87% (rounded)
Answer:
I believe it's C. (0.4)
Step-by-step explanation:
Answer:
63.4°
Step-by-step explanation:
Pole height = 1
shadow = 1/2
tan ∠CAB = 1 / (1/2) = 2
∠CAB = 63.4°
Answer:
D is correct (I think).
Step-by-step explanation:
A and C are completely invalid, as A is a linear function and C does not go up in intervals of 25.
Answer C is a linear function and is represented by y=x+1, but there are potential other reasons that it could be considered a linear function.
Answer D cannot be solved by y=mx+b because it is an exponential function.
Answer:
Option D, i.e., -0.7.
Step-by-step explanation:
Correlation describes the relation between two variables. It is defined by r and the value of correlation lies in the interval [-1,1].
If r=1, it represents strong positive correlation between two variables.
If r=0, it represents no correlation between two variables.
If r=-1, it represents strong negative correlation between two variables.
It is given that the value of a car decreases with age. The value of one variable decreases if the value of another variable increases. It means, the given problem has negative correlation.
If the data points lie about a straight negative line then coefficient is -1.
Since, the data set is not given, so the it represents moderate negative correlation, i.e, r=-0.7.
Therefore, the correct option is D.
