Answer: 3 customers per minute
Step-by-step explanation: 12/4 is 12 customers and 4 is the minutes. We want to know the rate at 1 minute so you divided 12 by 4 and 4 by 4, which gives you 3/1 or 3 customers per minute.
The correct answer is -1.
In order to solve this, we need to split into the positive and negative version of the answers. Let's start with the positive version.
2 - x < 4
-x < 2
x > -2 ----> NOTE: When we divide by -1, we have to change the direction of the sign.
Now we'll do the negative version.
2 - x > -4
-x > -6
x < 6
So we know the number must be greater than -2, but less than 6. The only number on this list that fits that is -1.
The simplified expression that represents the total perimeter of the triangle is 2x^2 + 10x + 3
<h3>How to determine the perimeter?</h3>
The side lengths are given as:
2x^2 + 5x + 3, 2 + 2x and 3x - 2
Add these lengths to determine the perimeter (P)
P = 2x^2 + 5x + 3 + 2 + 2x + 3x - 2
Collect like terms
P = 2x^2 + 5x + 2x + 3x + 3 + 2 - 2
Evaluate the like terms
P = 2x^2 + 10x + 3
Hence, the simplified expression that represents the total perimeter of the triangle is 2x^2 + 10x + 3
Read more about perimeter at:
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Answer:
9
Step-by-step explanation:
cos39= 7/x
x = 7/cos39
x= 9
Answer:
3a - 13
Step-by-step explanation:
2(2a - 5) - (a - 3)
4a - 10 - a - 3
Combine like terms:
4a - a - 10 - 3
3a - 13
