Answer:
Number 4
Step-by-step explanation:
Option B would yield more in the short term but after Option A surpasses it, it would become more profitable.
A (15.4-8.1=7.3) has two significant figure so A is the ANSWER
while the all other options has 3 significant figure
Keep these rules in mind:
- (a + b)² = a² + 2ab + b²
- (a - b)² = a² - 2ab + b²
- (a + b)(a - b) = a² - b²
Firstly, solve the exponent and multiplication:

Next, combine like terms:

Next, subtract 4x² on both sides:

Next, subtract 25 on both sides:

Lastly, divide both sides by -20.5. And since you are dividing by a <u>negative</u>, flip the inequality sign:

<u>Your answer is x > 2.</u>
Answer:
(x+6)(x+2)
Step-by-step explanation:
Answer:
x = -6
Step-by-step explanation: