Answer:
D
Step-by-step explanation:
The sum to infinity of a geometric sequence is
sum to infinity = 
here 
= 144 and r = 
, hence
sum = 
= 
= 
= 192 → D
Answer:
Divide 108 by 12 since there are 12 inches in a foot.
108 ÷ 12 = 9
Answer:
P and Q are two points on the line x-y+1=0 and are at the distance 5 units from origin. Find the area of the triangle OPQ. P and Q are two points on the line x-y+1=0 and are at the distance 5 units from origin. ... The area of PQR is 7*7/2 = 49/2 sq units.
Answer:
y = 3 and x = - 6
Step-by-step explanation:
y + 4 = 0 ( subtract 4 from both sides )
y = - 4
this is the equation of a horizontal line, parallel to the x- axis.
a parallel line will also be horizontal with equation
y = c ( c is the value of the y- coordinates the line passes through )
the line passes through (- 6, 3 ) with y- coordinate 3 , then
y = 3 ← equation of parallel line
a line perpendicular to the given line will be a vertical line with equation
x = c ( c is the value of the x- coordinates the line passes through )
the line passes through (- 6, 3 ) with x- coordinate - 6 , then
x = - 6 ← equation of perpendicular line
