15 has 1,3,5,15
18 has 1,2,3,6,9,18
12 has 1,2,3,4,6,12
Answer:
a). 5x - 12 b). 2x(4x + 3)
Step-by-step explanation:
a). 7(x - 2) - 2(x - 1)
= 7x - 14 - 2x + 2
= 5x - 12
b). 8x² + 6x
2x(4x + 3)
r value i.e Correlation between x value and y value = 0.769
=Standard deviation of the x-coordinate = 5.508
=Standard deviation of the y-coordinate = ?=k
Slope of line is given by formula
If slope of line is m, then
m = 
m= 
Substitute the value of k, i.e Standard deviation of the y-coordinate and then you can get the slope of line to three decimal places.
Answer:
20
Step-by-step explanation:
Vertical angles are equal to each other
x = -3x + 80
x + 3x = 80
4x = 80 divide both sides by 4
x = 20
The angles x and 55.1 degrees are COMPLEMENTARY ANGLES. Please look up that term if necessary.
Subtract the angle 55.1 degrees from ( what? ) to obtain angle x.
