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In the following question, you are solving for the variable, x. Note the equal sign, what you do to one side of the equation, you do to the other.
Do the opposite of PEMDAS. PEMDAS is the order of operation, and stands for:
Parenthesis
Exponents (& Roots)
Multiplication
Division
Addition
Subtraction
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First, add 2 to both sides of the equation:
10x - 2 (+2) = 38 (+2)
10x = 38 + 2
10x = 40
Next, divide 10 from both sides of the equation:
(10x)/10 = (40)/10
x = 40/10
x = 4
x = 4 is your answer.
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Regression refers to a data modeling technique which is used to analyze the relationship between measured and explanatory variables. The x - intercept of the graph is of no need in evaluating the suitability of a model.
- Residual plots are produced by plotting the difference in the actual and predicted values (residual) against the independent variables. A residual plot is expected to produce a random distribution of points else it is not appropriate if it shows a trend.
- The value of R-squared gives the percentage of variation in the model which is explained by the regression line, hence, the R-squared value is essential in determining the appropriateness of a model.
- A scatter plot is used to graph the trend or relationship between variables, such that one can visualize the pattern or relationship between them.
- The x - intercept is the value at the point where the regression line crosses the x - axis, this value has no significance in model selection, including the value of the y-intercept.
Therefore, the x - intercept is not a metric in determining if a model is appropriate or not for regression analysis.
Learn more : brainly.com/question/18405415
Answer:
y = 2x + 11, if you're supposed to convert to y = mx + b
2:3 ration when you simplify it out.
Answer: 10 dimes
the pile with the least number of dimes have 10 dimes
Step-by-step explanation:
Given;
Total number of dimes of the stack = 45
Ratio of division into piles = 1/6 : 1/3 : 1/4
Multiplying the ratio through by 12.
12(1/6 : 1/3 : 1/4) = 2 : 4 : 3
The least number of dimes in a pile(Nl) is that of the least ratio; which is 2
Ni = 2/(2+4+3) × 45
Ni = 2/9 × 45
Ni = 10 dimes
Therefore, the pile with the least number of dimes have 10 dimes