Answer:
b
Step-by-step explanation:
Answer:
The
term of the given sequence

Step-by-step explanation:
<u>Step(i):-</u>
Given sequence 2 , 5, 
First term a = 2
The difference of given geometric sequence

<u><em>Step(ii):-</em></u>
The
term of the given sequence

The
term of the given sequence


Answer:
5x -7y = 21
Step-by-step explanation:
A sketch can convince you that BC is a transversal perpendicular to parallel lines AB and CD. The question asks for an equation for CD, so we just need to write the equation of a line through D that is parallel to AB.
One way to do this is to equate the slopes of the parallel lines:
∆y/∆x for AB = ∆y/∆x for CD
(y2 -y1)/(x2 -x1) = (y -2)/(x -7) . . . . . . where (x1, y1) = A; (x2, y2) = B; (7, 2) = D
(4 -(-1))/(1 -(-6)) = (y -2)/(x -7)
5(x -7) = 7(y -2) . . . . . . . . . . . . . cross multiply
5x -7y = 21 . . . . . . . . . . . . . . . . add 35 -7y, simplify
_____
Note that the graph shows the line CD is named "b", and its equation is shown at upper left. Multiplying that equation by -1 gives the one shown here.
slope = (y2-y1)/(x2-x1)
the first slope is 0 (horizontal line)
second slope is undefined (vertical line)
Answer:
(a) x=−20 1/2
Step-by-step explanation:
Multiply by the product of the denominators and solve the resulting linear equation in the usual way.
