Answer:
D
Step-by-step explanation:
A is not, because 2-5x = -5x+2
(nothing has changed but the order)
B is not, because 3-5+2x = 2x-2
because 3-5 = -2. so -2+2x can be rewritten as 2x-2.
C is not, because 5x-2x = 3x
because you combine like terms, and 5-2 is 3
D <em>i</em><em>s</em><em>,</em> because 2x-2+3x = 5x-2
because you combine like terms (2x+3x=5x) and -2 is left.
Answer:
It goes 18 cm every second:
18 x 4 = 72 cm
The bridge is 72 cm long.
Hope this helps!
Answer:
5/3 teaspoons (if you don't want an improper fraction, it's 1 2/3 teaspoons)
Step-by-step explanation:
If she uses 1 tsp for 3 cups, then the amount needed for one cup is 1/3 tsp.
Since the mother is using 5 cups, just multiply 1/3 by 5, which equals 5/3.
Answer:
The given statement is true.
Step-by-step explanation:
Regression Analysis:
- Regression analysis is a technique that help us to find or define a relationship between a dependent and an independent variable.
- It helps us to predict the dependent variables with the help of independent variables.
- Various techniques are used for the prediction of independent variable.
- It is a type of predictive statistical technique and helps us to find whether there is a significant relationship between the dependent and the independent variable.
Correlation analysis:
- Correlation is a technique that help us to find or define a relationship between two variables.
- It is a measure of linear relationship between two quantities.
- It is not necessary that the that out of the two variable one needs to be dependent and the other to be independent.
- Correlation can be positive, negative or zero correlation.
Thus, the given statement is true.
Answer:
53
Step-by-step explanation:
Take the mean of each row in the accidents reported column so for example 0-4 would be 0+4/2 = 2
Then times it by the frequency which in this case is 15:
2 x 15 = 30
Do this for each rows and then add it all up:
30 + 28 + 120 + 34 = 212
Then divide it by number of row which in this case is 4:
212/4 = 53
