Answer:
81
Step-by-step explanation:
let the terms be a,ar,ar²
r=2/3
a+a(2/3)+a(2/3)²=171
multiply by 9
9a+6a+4a=171×9
19 a=171×9
a=(171×9)/(19)
a=9×9=81
Answer:
it is at sea level because 0 meters above sea level indicates that it has not changed from sea level
Answer:
Example
Step 1 The two sides we know are Adjacent (6,750) and Hypotenuse (8,100).
Step 2 SOHCAHTOA tells us we must use Cosine.
Step 3 Calculate Adjacent / Hypotenuse = 6,750/8,100 = 0.8333.
Step 4 Find the angle from your calculator using cos-1 of 0.8333:
<h3>
Answer: x = 6</h3>
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Work Shown:


Those are the possible solutions, but plugging x = -14 back into the original equation will lead to an error. So we rule x = -14 out
x = 6 works as a solution however
Answer:

Step-by-step explanation:
Insert the given x values for the given equation to find the corresponding y coordinate:


Insert -6:

Simplify multiplication (when multiplying a negative and a positive, the result will always be negative):

Simplify (when subtracting from a negative number, add the values, but keep the negative symbol):

Insert -1:

Insert 1:

:Done