Answer: what kind of math is it tho?
The answer is 4. All of the above
The equation (3xsquared+ 14x + 20 = 0) has no real roots, so there are no factors made of only real numbers.
The factors are [ -7 plus and minus ( i x square root of 11 ) ]
" i " is the square root of -1 .
Given that the recursive formula is:
an=an-1+7
first term is
a1=17
the second term will be:
a2=a(2-1)+7
a2=a1+7
a2=17+7
a2=24
To evaluate for the explicit formula we use the formula:
an=a+d(n-1)
where
a=first term
d=common difference
from the calculations above:
d=24-17=7
thus the explicit formula will be:
an=17+7(n-1)
an=17+7n-7
an=7n+17-7
an=7n+10
Answer: B] an=7n+10
