Answer:
x + 5
Step-by-step explanation:
This is actually rather simple to figure out. Simply divide 6x + 30 by 6. That should get x + 5 for the length of one side.
Answer:
The regression line is not a good model because there is a pattern in the residual plot.
Step-by-step explanation:
Given is a residual plot for a data set
The residual plot shows scatter plot of x and y
The plotting of points show that there is not likely to be a linear trend of relation between the two variables. It is more likely to be parabolic or exponential.
Hence the regression line cannot be a good model as they do not approach 0.
Also there is not a pattern of linear trend.
D) The regression line is not a good model because there is a pattern in the residual plot.
Answer:
<em>The number is 46</em>
Step-by-step explanation:
<u>Equations</u>
Suppose:
a = One digit of the number
b = Tens digit of the number
The sum of the digits is 10:
a + b = 10
The number expressed as two-digits quantity is ab, and its value is
10a+b
When we add 18 to that number, we have:
10a+b+18
And that is represented as the number reversed:
10a+b+18=10b+a
Simplifying:
9a+18=9b
Dividing by 9:
a + 2 = b
Substituting in the first equation:
a + a + 2 = 10
2a = 8
a = 4
b = a + 2 = 6
Thus the number is 46
Y=12-3x
3x+y=12
hope i helped:D
Step-by-step explanation:
- (3x-2y) (4x+3y) (8x-5y)
- (3x(4x+3y)-2y(4x+3y))(8x-5y)
- (12x²+9xy-8xy-6y²)(8x-5y)
- (12x²+xy-6y²)(8x-5y)
- 12x²(8x-5y)+xy(8x-5y)-6y²(8x-5y)
- 96x³-60x²y+8x²y-5xy²-48xy²+30y³
- 96x³-52x²y-53xy²+30y³