Carrie predicts she will collect 50 cans for the food drive. If Carrie actually collects 70 cans, what is Carrie's percent error? Round your answer to the nearest tenth of a percent.

Carrie's percent error was 28.6%

Step-by-step explanation:

Step 1; From the given data Carrie predicted that she would have lesser than she actually got. She estimated that she would collect 50 cans when she actually got 70 cans.

Step 2; Her percent error is given by dividing the difference in values by the actual value multiplied by 100.

% error = (difference in values / actual value) × 100

Difference in values = 70 - 50 = 20

Claire's % error = (70 - 50)/ 70 × 100 = 20/70 × 100 = 0.28571 × 100 = 28.571%.

The 28.571% is rounded off to 28.6%

the first one is x^2+2x+2

the second one is x^2+4

the last one is x^2-4x+8