If you look at the image you can see that it says “x - 2 is greater than/equal to 0
2hrs and 18 mins = 138 mins
381 km / 138 mims = 2.76 km / minute
2.76 km / min * 60 = 165.6 km / hr
His two speeds for the whole journey include 165.6 km / hr and 30 km / hr.
165.6 + 30 = 195.6
195.6 / 2 = 97.8 km / hr
The average speed is 97.8 km / hr
Answer:
Domain: (-infinity, infinity) Range: (-infinity, infinity)
Step-by-step explanation:
They are parabolas, therefore you can assume that they go on infinitely. To find range, you must look at your y values. Look for your lowest point. Because the line goes done forever, your beginning mark would be (-infinity.
To find the other part, you look at your positive y values. Look for the highest value. Because this goes on infinitely, the completed version of your notation would be (-infinity, infinity). Be sure to use the infinity symbol though, which looks like an 8 rotated 90 degrees.
To find domain, look at your x values. To begin, look at your left-most values, which would be the negative numbers. Because the line goes on forever to the left, your notation would be (-infinity. To find the other part of domain, look at your positive x values. Because this line goes on infinitely as well, the completed version of your notation would be (-infinity, infinity). Infinity is never bracketed, it is always in parenthesis.
8 pies the 1/4 of a cup doesn’t really fit since you’d need another 1/4th of a cup to make a pie
