Answer:
( x + 2y ) ( x - 2y )
Step-by-step explanation:
x² + [ -2xy + 2xy ] - 4y²
= x² - 4y²
Answer:
Number of minutes per lap = 2.25 minute
Number of lap per minute = 0.444 lap (Approx)
Time taken for 15 lap = 33.75 minutes
Step-by-step explanation:
Given:
Number of laps = 4
Time taken = 9 min
Computation:
Number of minutes per lap = 9 / 4
Number of minutes per lap = 2.25 minute
Number of lap per minute = 4 / 9
Number of lap per minute = 0.444 lap (Approx)
Time taken for 15 lap = 15 x 2.25
Time taken for 15 lap = 33.75 minutes
The answer is the third one (C?) because if you started at 0, you are going below it since you are losing yards, causing you to have less and less yards. Adding two negatives gives you a lesser amount.
This college cost and savings calculator is the ideal tool for your college planning needs. It combines a college cost calculator with a 529 college savings calculator. Obtain a personalized projection of your future college costs by entering your child's age, the type of college you're saving for, and your household income. This calculator shows you how much to save for college in a 529 college savings plan. You can adjust the monthly contribution to see how much monthly contributions can compound over time and the percentage of total college costs your savings will cover.
