Answer:
d=-4 and a=10
Step-by-step explanation:
The sum of a arithmetic sequence is given by (n/2)*(2a+(n-1)d). Comparing coefficients with the given Sn, we have; a-d/2=12 and d/2=-2, d=-4 and a=10.
We will turn the left side into the right side.

Use the identity:



Now use the identity
solved for sin^2 x and for cos^2 x.




Hello, How are you doing today?
If your friend makes 2$ more than you do, then you must form an equation for the problem. y = amount she has, x = your amount. Therefor, it would be:
y = x + 2
If you make 6 dollars, she will make 8 and so on. Thank you, have a nice day!
Answer:
bruh
Step-by-step explanation:
Answer:
Meeting or following another vehicle
Step-by-step explanation: