John's car is stopped at a red light. when the light changes, the car accelerates to 45 miles per hour in 15 seconds.
what is the approximate rate of change in the miles per hour that lohn's car accelerated?
a)
3 miles per hour per second
eliminate
12 miles per hour per second
15 miles per hour per second
d
30 miles per hour per second

Use this data in the problem below. follow the steps carefully. round to the nearest tenth. lot 3: week 1: 345 week 2: 340 week 3: 400 week 4: 325 step 1. jim enters the data and calculates the average or mean. step 2. jim calculates the deviation from the mean by subtracting the mean from each value. step 3. jim squares each deviation to remove negative signs. step 4. jim sums the squares of each deviation and divides by the count for the variance. step 5. jim takes the square root of the variance to find the standard deviation.

What is the base of 1/9 to the power of 2

Which ordered pair is a solution to the system of linear equations? 2x + 3y= 6 –3x + 5y = 10