- 3/8 + 4/9
= LCM = 72
= - 3 * 9/ 8 * 9 = -27/ 72
= 4 * 8 / 9 * 8 = 32 / 72
= (-27 + 32)/ 72
= 5/72
Answer:
x=90º
Step-by-step explanation:
x=60+30
x=90
The first one is none of above, it is vertical opposite angles.
the second to the left is also none of above, since the 2 lines are not parallel to each other.
the third one in the right is corresponding
the fourth one is alternative exterior
the last one is none of above because again the lines aren't parallel
The line which is the best model for the data in a scatter plot is: D. A scatterplot with an x axis labeled, variable A from twenty to sixty in increments of ten and the y axis labeled, variable B from twenty to forty in increments of five with a negative trend line through the middle of eight points.
<h3>What is a scatter plot?</h3>
A scatter plot can be defined as a graph which uses Cartesian coordinates (x-axis and y-axis) to display the values of two (2) variables, with the resulting points revealing any correlation between the data.
<h3>What is a trend line?</h3>
A trend line refers to an statistical (analytical) tool that is used in conjunction with a scatter plot, so as to determine whether or not there's any correlation between a data.
For example, a scatterplot with an x-axis with its points ranging from twenty (20) to sixty (60) in increments of ten (10) while the y-axis has its points ranging from twenty (20) to forty (40) in increments of five (5) with a negative trend line through the middle of eight (8) points i.e above and below the trend line.
Read more on scatterplot here: brainly.com/question/6592115
Answer:
x= 1, x= 4, and x= -3
Step-by-step explanation:
Use the possible combinations of factors of the constant term of the polynomial to find a first root. Try 1, -1, 2, -2, 3, -3, etc.
Notice in particular that x = 1 is a root (makes f(1) = 0):

So we know that x=1 is a root, and therefore, the binomial (x-1) must divide the original polynomial exactly.
As we perform the division, we find that the remainder of it is zero (perfect division) and the quotient is: 
This is now a quadratic expression for which we can find its factor form:

From the factors we just found, we conclude that x intercepts (zeroes) of the original polynomial are those x-values for which each of the factors: (x-1), (x-4) and (x+3) give zero. That is, the values x= 1, x= 4, and x= -3. (these are the roots of the polynomial.
Mark these values on the number line as requested.