Answer:
230
Step-by-step explanation:
20x11=220
20x0.5=10
220+10=230
The measure of an interior angle of a regular nonagon (9-sided polygon) is 140°
<h3>How to determine the angle</h3>
The formula for sum of interior angles of a polygon is given as;
= ( n -2) × 180
Recall that a nonagon has nine sides, so , n = 9
Substitute the value into the formula
= ( 9 -2) × 180
= 7× 180
= 1260°
Since the sum of the angles = 1260°
One of the angles = 1260/ 9 = 140°
Therefore, the measure of an interior angle of a regular nonagon (9-sided polygon) is 140°
Learn more about polygons here:
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In Mathematics, the ratio of the price of two (2) goods that is represented on a graphed budget line is measured by its: slope.
<h3>What is a graph?</h3>
A graph is a statistical tool that is primarily used for the graphical representation of data by using both the horizontal and vertical lines, which are denoted as x-axis and y-axis respectively.
<h3>What is slope?</h3>
The slope of a line can be defined as the gradient of a line and it's typically used to describe both the ratio, direction and steepness of an equation of a straight line.
Mathematically, the slope of a line is given by the following formula;

In conclusion, the ratio of the price of two (2) goods that is represented on a graphed budget line is measured by its slope.
Read more on slope here: brainly.com/question/3493733
Answer:
Length of mammoth's tusk in poster = 15.33
Step-by-step explanation:
Actual height of mammoth = 10 feet 5 inches = 126 inches
Height on the poster of mammoth = 14 inches
Actual length of mammoth's tusk = 11.5 feet = 138 inches
Length of mammoth's tusk in poster = x
126 : 14 :: 138 : x
Product of mean = product of extremes
x * 126 = 14 * 138

x = 15.33