3. what are the first four terms of the sequence represented by the expression n(n-1)- 5?

It depends what the starting value of n is defined as

Assuming n starts at 0 it would be:

-5, -5, -3, 1

Assuming n starts at 1 it would be:

-5, -3, 1, 7

not enough information

step-by-step explanation:

we cannot know this, because the other students could have handed out 10 flyers, or they could have handed out 100. one way, the mean would go up, and another way, the mean would go down.

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)