Question

Joy is training for a triathlon. She runs a distance of 2x miles, cycles a distance of (x2 + 7) miles, and swims a distance of (x − 2) miles. Which simplified expression is equivalent to the total distance, in miles, Joy covers? (2 points)

ax2 + 3x + 5

bx2 + 3x + 9

c3x2 + 5

d. 3x2 + 9

Answer 1

Answer:

see below

Step-by-step explanation:

In order to get the simplified expression that is equivalent to the total distance, in miles, Joy covers, we just have to add the given expressions:

x2       + 7

    2x    

     x   -2

--------------

x2 + 3x + 5

Add the values with the same units.

Now the final answer would be x2 + 3x + 5. The answer is option A.

Hope this answer helps.