If we connect the midpoints of the sides of a triangle, each segment is a) the length of the opposite side and

b) to the opposite side

A.

Step-by-step explanation:

A line segment that connects two midpoints of the sides of a triangle is called a midsegment. ... One is that the midsegment is parallel to a side of the triangle. The other is that the midsegment is always half the length of this side.

the answer is b.

step-by-step explanation:

by the trigonometric ratio tangent, tangent equals opposite divided by adjacent.

therefore, tan(50) equals ac/3

multiply each side by 3 to get: ac=3tan(50)

the answer is b.

= 5

step-by-step explanation:

to find the 15th term substitute n = 15 into the nth term formula

= (- 3 × 15 ) + 50 = - 45 + 50 = 5