Answer:
a) x = 3
b) x = 10
c) x = 28
Explanation:
a)
collect term
simplify
divide both both sides by 6
b)
distribute
collect terms
combine
divide both sides by 15
c)
collect like terms
combine
cross multiply
simplify
Answer:
D. 2x + 7
Step-by-step explanation:
Use the point given, (-3, 1), and put it into the point-slope formula.
y - 1 = m(x+3)
The m, or the slope, is still blank. When you want a line parallel to a certain slope, the slope remains the same. Therefore, you plug in 2 for m:
y - 1 = 2(x+3)
y - 1 = 2x + 6
y = 2x + 7
Answer:
D. The coefficient of determination is the ratio of the explained variation to the total variation.
C. The coefficient of determination is the percent of variation of y that is explained by the relationship between x and y
Step-by-step explanation:
The Coefficient of determination is the ratio of the explained variation in y to the total variation in y.
Coefficient of determination, r² ;
r² = explained variation / total variation
The coefficient of determination is the proportion of variation in y (predicted value) which is due to the regression line ; Hence, it is the percent of variation of y that is explained by the relationship between x and y.
