The first one is d and the second one is b
Answer:
( 3n-8)
Step-by-step explanation:
so the given sequence is AP
where common difference is +3
nth term for this AP will be
(-5)+(n-1).(3) = 3n-8
He paid $643.5 for it originally
585 x .1 = 58.5
585+58.5= 643.5
hope this helps
The other endpoint is (10, -8
Since they're vertical angles, they're equal in degree measure
since they're equal, we can make the two expressions equal to each other
5a - 1 = 2a + 20
add 1 to both sides
5a = 2a + 21
subtract 2a from both sides
3a = 21
divide both sides by 3a
a = 7
now, plug the answer you found for a into one of the two expressions
5a - 1 becomes (5*7) - 1, which equals 34
to double check that they're equivalent (since they're vertical angles)
2a + 20 becomes (2*7) + 20, which equals 34
both angles are 34 degrees!
