An advisor to the researcher suggests using a randomized block design. Should the researcher block on type of vehicle (compact cars, full-size cars, and trucks) or number of miles previously driven (0–2,000 miles; 2,000–4,000 miles; and 4,000–6,000 miles)? Explain your choice of blocking variable.

Scott harris can invest $7,000 in a 1-year cd that earns interest at an annual rate of 4 percent compounded monthly. the amount per $1.00 is 1.040742. he can also invest $7,000 in a 1-year cd at annual rate of 4 percent compounded quarterly. the amount per $1.00 is 1.040604. what is the difference in the amount of interest earned for each investment? a) $0.96 b) $0.81 c) $0.87 d) $0.88

If f(x) = x+8 and g(x) = 4x- 3, find (f+g)(x)

Can you me with perpendicular lines and parallel lines?