Colin wants to find out how using fins increases swimming speed. If an independent groups design is used, the researcher would manipulate the variable by:
a. randomly requiring half the swimmers to swim without fins and the other half to swim with fins.
b. having all swimmers first swim without fins and then with fins.
c. having half the swimmers first swim without fins and then with fins and having the other half swim first with fins and then without fins.
d. requiring all swimmers to first swim with fins and then without fins.

1760 kilometers

step-by-step explanation:

multiply the amount of time the plane took to travel by it's speed

96 39 cause 135 -96=39 im smart (i used a calculater)

b

step-by-step explanation:

the equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

calculate m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (0, 4) and (x₂, y₂ ) = (3, - 5) ← 2 points on the line

m = = = - 3

with m = - 3 and (a, b) = (3, - 5), then

y - (- 5) = - 3(x - 3), that is

y + 5 = - 3(x - 3) → b