The formula for the nth term of an arithmetic sequence can be found using the formula an=a1 + (n-1)d. which of the following is equivalent to this equation? a)n=an+a1 b)n=an+a1-d/d c)n=an-a1 d)n=an-a1+d/d

He amount of carbon-14 present in animal bones t years after the animal's death is given by p(t)equals=upper p 0 e superscript negative 0.00012097 tp0e−0.00012097t. how old is an ivory tusk that has lost 26% of its carbon-14?

Find the value of x. give reasons to justify your solutions! c ∈ ae

See attachment below and find the equivalent of tan(∠qsr)