If two planes leave an airport at the same time with one flying west at 620 miles per hour and the other flying east at 710 miles per hour. how long will it take them to be 3990 miles apart?

answer

a,b, and d

explanation

a reflection angle is more than

but less than;

an angle that measures

is a reflex angle.(true)

an angle that measures less than

is acute.(true)

provided we are considering angles greater or equal to zero.

an acute angle lies in the range.

an obtuse angle is less than 180° but more than 90°

an angle that measures 300° is obtuse (false)

an angle that measures 65° is an acute angle.(true)

(2,6)

step-by-step explanation:

cause i just did this and got the answer

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54 it just is

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