Find the sum of the first 7 terms of the following sequence. Round to the nearest hundredth if necessary.
50,
30,
18, ...
Sum of a finite geometric series:
21 – airn
Sn
1-r

last option

step-by-step explanation:

given that δdef is right and isoceles,

assuming that side df is the hypotenuse means that de an ef are the other 2 sides that intersect at 90° and are of equal length.

because they are of equal length, we can say that they are congruent

because they intersect at 90°, their slopes must be opposite reciprocals.

only the last option satisfies these conditions.

2

step-by-step explanation:

table 3 represents a direct variation function. : )

the answer is 3/2 and for decimal: 1.5

hope i

-lavira: )