Jackrabbits are capable of reaching speeds up to 40 miles per hour. How fast is this in feet per second? Round to the nearest whole number

59 feet per second.

Step-by-step explanation:

Firstly, we need to convert miles into feet and hours into seconds.

We know that there are 5280 feet in a mile.

To convert hours into seconds we multiply how many minutes are in an hour by how many seconds there are in a minute (60x60) to get 3600.

We multiply 5280 by 40 to get 211200 feet per hour

Because of the word "PER" we know that this is a divison problem.

211200 divided by 3600 is 58.66 repeating. Rounded to the nearest whole number makes it 59 feet per second.

d. bc = 12 and ef = 16

step-by-step explanation:

we are given that δabc : δdef such that .

also, it is given that

so, from the options, we need that .

a.

b.

c.  

d.

as, we can see that only option d gives the same ratio as i.e. .

hence, the possible lengths are bc = 12 and ef = 16.