Answer:
D
Step-by-step explanation:
In a triangle, the sum of three angles is 180.
Since 50+65+80= 195 does not equal to 180.
Therefore, we choose D.
Answer:
5/y^3
Step-by-step explanation:
Answer:
4^n-1
Step-by-step explanation:
So given sequence is a geometric sequence where terms increase or decrease by a constant common ratio(r)
Formula to find terms in Geometric sequence is " ar^n-1 where a is first term , r is common ratio and n is number of items
In this case , first term (a) is 1 , common ratio(r) is succeeding term/preceding term = 4/1 = 4 and number of items be (n).
Applying "ar^n-1 " we get,
1*4^n-1 which is , 4^n-1
Thats the formula which represents the situation....
Associative Property of Addition is your answer.
This means that no matter which set of numbers is parenthesis (the one being done first), the answer is still going to be the same
hope this helps
