Question

4. Find the 3rd term from the end of the A.P.: -7,-3, 1, 5,
.49.
5. Find the value of k for which the equations x - 2y = 8 and lax + y = 10 represent parallel lines
6. For the pair of linear equations in x and y for the following statement :​

Answer 1

here are the solutions

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Answer 2

Answer:

4. -15

Step-by-step explanation:

a=-7

d=(-7-(-3))

=(-7+3)

=-4

tn=a+(n-1)d

t3=-7+(3-1)(-4)

= -7+(2)(-4)

=-7-8

=-15