Sum of -2x^-3x is -5x and sum of x^+7x is 8x hope this helps answer my question please !!
Answer:
Question 1 of 7, Step 1 of 2 B/21 Correct Consider the following frequency table representing the distribution of the length of a screw used in a bookshelf assembly in inches) Length of a Screw in Inches) Class Frequency 15 10 0.31-0.35 0.36-0.40 0.41-0.45 0.46-0.50 0.51-0.55 15 12 6 Step 1 of 2: Determine the midpoint for the third class.
Step-by-step explanation:
Answer: x=12
Step-by-step explanation: