Answer:
=-485/1944( Decimal: 0.249486)
Step-by-step explanation:
7/81/21/8-1/4
Answer:
40
Step-by-step explanation:
8 and 5 are factors of 40. (8 x 5 = 40)
We have two congruent trapezoids.
The formula of an area of a trapezoid:

We have:

Substitute:

Answer:

Answer:
102.3
Step-by-step explanation:
a_38 = -5
difference d= -2.9
We use general formula

WE make the formula for a_38 th term
Plug in 38 for n

Now plug in -2.9 for d and -5 for a_38


Now add 107.3 on both sides
102.3 = a_1
option A is correct