The answer is D). 125 = 1.28f. This accounts for both sales tax and the cost of food.
1. 47
2. 70.4 ft per min
3. 13.33333333333333
(5x+1)² = 7; expand: 25x² + 10x +1 = 7 or 25x² + 10x -6 = 0
Solve this quadratic for x:
x = [-b + √(b² - 4ac)]/2a and x = [-b - √(b² - 4ac)]/2a
Plug the values and you'll find :
x = (- √7 - 1)/5 (answer C)
x = (+√7 -1)/5 (answer E)
Answer:
4 x 6 divided by 1/4 and 6
Step-by-step explanation:
i'm sorry if i got it wrong. :(