Answer:
Order the set of values
9, 10, 11, 12, 14, 20
<h2>Median:</h2>
Middle Value
n = number of values
if n is odd, the median is at position n/2
if n is even, the median is between position n/2 and n/2 + 1
n = 6
6 is even, so the median is between position 6/2 and 6/2 + 1
the median is between 11 and 12
(11 + 12)/2
23/2
11.5
<h2>Mean </h2>
9 + 10 + 11 + 12 + 14 + 20 = 76/6
= 12.666...
= 12.7 to the nearest tenth.
A common way to simplify this problem would be to use an area model, or the distributive property. Using the distributive property does not require any drawing, so here goes.
(x-3)(x²+7x-8) Distribute by multiplying each of the terms in the first set of parentheses by every term in the second set of parentheses.
x³+7x³-8x-3x²-21x+24 Then combine alike terms.
8x³-3x²-29x+24 Is your final answer.
Answer:
hold on what I can't see that sorry it's really blur
The central angle COA = 2 * angle at the circumference
m < COA = 2 * 80 degrees
