3. A snail crawls 5 inches in 15 minutes. What is its speed in in./min?
A. 33 in./min
B. 3.3 in./min
C. 0.33 in./min
4. My mom and I walked 3,600 m in 90 minutes. What was our speed in m/min?
A. 40 mph
B. 40 m/min
C. 400 m/min
5. The sprinter ran 110 m in 11 seconds. What was her average speed in m/s?
A. 10 m/s
B. 0.1 m/s
C. 100 m/s
6. Our family car travels 40 miles in 2 hours. What is our average speed in mph?
A. 2 mph
B. 20 mph
C. 40 mph
7. Candice skipped 12 m in 3 seconds. What was her speed in m/s?
A. 4 m/s
B. 3 m/s
C. 12 m/s

Atank holds 1000 gallons of water, which drains from the bottom of the tank in half an hour. the values in the table show the volume v of water remaining in the tank (in gallons) after t minutes.t(min) 5 10 15 20 25 30v(gal) 694 444 250 111 28 0(a) if p is the point (15, 250) on the graph of v, find the slopes of the secant lines pq when q is the point on the graph with t = 5, 10, 20, 25, and 30.(b) estimate the slope of the tangent line at p by averaging the slopes of two secant lines.(c) use a graph of the function to estimate the slope of the tangent line at p. (this slope represents the rate at which the water is flowing from the tank after 15 minutes.)show all steps.

Estimate the change in the gibbs energy and molar gibbs energy of 1.0dm3 of octane when the pressure acting on it is increased from 1.0 atm to 100 atm. the mass density of octane is 0.703 g cm−3

Suppose that f : rn → rm and that a ∈ k, where k is a connected subset of rn . suppose further that for each x ∈ k there exists a δx > 0 such that f(x) = f(y) for all y ∈ bδx (x). prove that f is constant on k; that is, f(x) = f(a) for all x ∈ k