Because the .8 is not negative, it's positive. That means the line of best fit for this data has a positive slope. .8 is not perfect-- a 1 is perfect-- but it's a pretty good fit, so your choice is c.
Answer: about 20 ft
Step-by-step explanation:
7.6 - 0.4m = -2
Subtract 7.6 from both sides
-0.4m = -9.6
Divide by -0.4 by both sides
m = 24
When multiplying exponents, remember the first rule: when multiplying similar bases, add powers together. 52% + 56% =? The bases of the equation remain unchanged, while the exponents' values are added together. Adding the exponents is only a quick way to get at the answer. Simply add the exponents to multiply exponential expressions with the same base. Simplify. The product rule applies because the base of both exponents is a. With a common basis, add the exponents.