GP = 1/2 , 1/4 , 1/8 , 1/16
1st) the common ratio is (1/4 : 1/2 ) = 1/2, so r =1/2
2nd) the sum of a GP is:
S= a(1-rⁿ)/(1-r)
S=(1/2).[1-(1/2)⁴]/(1-1/2) = 15/16
Answer:
i chose d but it was wrong the answer is B got it right on edg
Step-by-step explanation:
Answer:
1/2 or 50%
Step-by-step explanation:
There are 4 total cards
The number of odd or 5 is 3 or 5 so a total of 2 choices
P(5 or odd) = { 5 or odd}/ total
= 2/4
=1/2
Answer:3x² - 9x - 12 =
3(x² - 3x - 4) =
3(x² + x - 4x - 4) =
3(x(x+1)-4(x+1)) =
3(x+1)(x-4)
Step-by-step explanation:
