Explanation:
The sum of something and 2 can only be zero when that something has a value of -2.
The range of the square root function is all non-negative numbers, so it cannot have a value of -2. Thus, the equation cannot have a solution.
20/100 = x/12
The 20/100 in the expression represents the 20%. The x in this scenario is the unknown amount in which the person will tip. The /12 is the cost of the original price. So, in order to find the value of x, you would need to cross multiply.
x = $2.40
The total cost would be $2.40 + $12.00 = $14.40
Answer:
Recursive formula for this geometric sequence, -125, -25, -5, -1 will be:
where
Step-by-step explanation:
As we know that when we define a sequence by describing the relationship between its successive terms, it means we are defining the sequence recursively.
Given that,
-125, -25, -5, -1
As the recursive formula makes us able to find the next term in the sequence from the proceeding term by multiplying the preceding term by r.
Therefore,
Recursive formula for this geometric sequence, -125, -25, -5, -1 will be:
where
$4.50
dollars. We first need to find the unit rate of the sale, or how much one pound costs. We do this by $9/4 and get a rate of 2.25. Then we can multiply 2.25 by 2 pounds to get $4.50