Maya is a biologist who studies hummingbirds. In order to estimate the number of hummingbirds in the area, she catches 50 hummingbirds and tags them. Later, she catches
720 hummingbirds and finds that 15 of them are tagged. To the nearest whole number, what
is the best estimate for the hummingbird population?

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation:

answer: i don't understand. what are the options

step-by-step explanation:

- "runner b is moving at a slower rate."

- "the graphs shown are graphs of distance(km) against time(min).

the slopes of this graphs are are given by:

slope = (change in y)/(change in x)

= (change in distance)/(change in time)

this is the formula for finding the speed. so, the slope of these graphs represent the speed of the runner.

taking each division in the graph to represent 1 on both axis:

runner a ⇒ speed = (2-0)/(1-0)

= 2/1

= 2 km/min

runner b ⇒ speed = (3-0)/(3-0)

= 3/3

= 1 km/min

this shows that   runner b is moving at a slower rate."

e

step-by-step explanation:

an equation by definition has to have two or more variables (x and 2 in this case)