Answer:
The common ratio of the geometric sequence is:
Step-by-step explanation:
A geometric sequence has a constant ratio 'r' and is defined by
where
Given the sequence
Compute the ratios of all the adjacent terms:
The ratio of all the adjacent terms is the same and equal to
Therefore, the common ratio of the geometric sequence is:
It equals DE because it’s obvious they have the same angles and it’s a straight line not a bendy one or anything so it’s ( DE )
X^2-2x-5=(x-1)^2-6
After substituting we get that the domain is:
{-6;-5}
Answer:
-1 -9i, where a = -1 and b = -9
Step-by-step explanation:
1st step is to open up the brackets. Since there's a (-) in front of the second bracket, we have to multiply every term by -1, so positive becomes negative, negative becomes positive etc.
4-i-5-8i
Then we collect like terms.
-1 -9i
This is the answer. It looks wrong since the variables are 'positive' in a +bi, but you have to remember that a variable can be represented as a, but its actual value could be negative, in this case -1. This is the same with b, as b could be the same as -9.
This is an expression, so we can't multiply everything by -1 to make it 'look right'. You can only multiply by -1 or 'alter' the terms when the expression equates to something.
Answer:
Step-by-step explanation:
-0.5(3x + 5) and -1.5x + 2.5
-0.5(3x + 5)...distribute the -0.5 thru the parenthesis
-1.5x - 2.5
no, these are not equivalent.... one is -1.5x + 2.5 and the other is -1.5x - 2.5....not the same