Answer:
is tara incorrect with what?
Step-by-step explanation:
Answer:
A) (x +2)(x -3)² = 0
Step-by-step explanation:
Synthetic division by (x-3) gives the quadratic x² -x -6, which has factors (x -3) and (x +2). This is confirmed by another round of synthetic division.
The resulting factorization is ...
... (x +2)(x -3)² = 0
_____
A graph confirms a double zero at x=3 and one at x=-2.
Answer:
Explanation:
The time to cross the finish line may be found using the speed vs. time equation:
From which you can solve for time:
Using the last equation, you can find the difference in the times for Malcolm and Joshua, but, since the speed must be expressed in miles per minutes, and the given data are minutes per mile, first you must convert the data.
Miles per minute is the inverse of minutes per mile, so the corresponding speeds are:
- Malcolm's speed: 1 / (6 min/mile) = (1/6) miles/min
- Joshua's speed: 1 / (8 min/mile) = (1/8) miles/min
- Time for Malcom: 10 miles / [ 1/ (6 miles/min) ] = 10/(1/6) min = 60 min
- Time for Joshua: 10 miles / [ 1/ ( 8 miles/min) ] = 10/(1/8) min = 80 min
- Difference in times: 80 min - 60 min = 20 min
Hence, Joshua will cross the finish line 20 minutes after Malcolm crosses the finish line.
Given that 1.8*(Celsius temperature) + 32 = Fahrenheit temperature, we can plug in 50 for the Celsius temperature and solve:
1.8*50 + 32 = 90 + 32 = 122 degrees F
