Answer:
Geometric mean is most commonly represented as:

Your answer would be -20 ft per sec/5 = -4 ft/sec
4 x^2 + 20 x + 25 = 7
Divide both sides by 4:
x^2 + 5 x + 25/4 = 7/4
Write the left-hand side as a square:
(x + 5/2)^2 = 7/4
Take the square root of both sides:
x + 5/2 = sqrt(7)/2 or x + 5/2 = -sqrt(7)/2
Subtract 5/2 from both sides:
x = sqrt(7)/2 - 5/2 or x + 5/2 = -sqrt(7)/2
Subtract 5/2 from both sides:
Answer: x = sqrt(7)/2 - 5/2 or x = -5/2 - sqrt(7)/2
Answer:
112
Step-by-step explanation:
Everything is multiplied by 8
1 month $3000. 2 month $750. 3 month $187.50. 4 month $46.875. 5 month $11.71875.
All the months added together equals $3996.09375
$12,000 - $3996.09375 = $8003.90625 (rounded)-> $8003.91
The answer is D) $8003.91