Mathematics, 03.04.2021 14:10 jenn4887

a firm wants to select a group of 8 out of its 20 employees to attend a Business trip .in how many ways can this be done if there is a couple who must not be separated

Answers: 2

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Answer from: Quest

answer

a,b, and d

explanation

a reflection angle is more than

$\pi \: radians$

but less than;

$2 \pi \: radians$

an angle that measures

$\frac{4 \pi}{3} \: radians$

is a reflex angle.(true)

an angle that measures less than

$\frac{\pi}{2}$

is acute.(true)

provided we are considering angles greater or equal to zero.

an acute angle lies in the range.

$0 \leqslant \theta \: < \frac{\pi}{2}$

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)

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a firm wants to select a group of 8 out of its 20 employees to attend a Business trip .in how many w...