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Answer:</h2><h2>
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Square B
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Explanation:</h2>
The complete question is written in a comment above. The doctor's office where you work needs to store eight filing cabinets with patient information in one of three secure storage rooms. We know that the filing cabinets need a total of 55 square feet of space. You need to identify in which room the filing cabinets will fit. So we have three rooms:
FIRST OFFICE:
In other words, for this room we have the following area:
SECOND OFFICE:
In other words, for this room we have the following area:
THIRD OFFICE:
In other words, for this room we have the following area:
How can we know what is the room we need to choose?
Well, the room we need to choose is the one whose area is greater than the area of the filling cabinets. In other words, let's call <em>square x </em>the unknown room, then:
From the, choices the only room that meets our requirements is <em>square B </em>because:
Club A: 25+30x where x is the number of lesson
Club B 55 + 20x where x is the number of lesson
when is the cost equal
25+ 30x = 55 + 20x
subtract 20 x from each side
25+ 30x -20x = 55 - 20x
25+ 10x = 55
subtract 25 from each side
25-25+ 10x = 55 - 25
10 x = 30
divide by 10
10x/10 = 30/10
x = 3
After 3 lessons the cost is equal
For this case we have that by definition, the equation of a line of the point-slope form is given by:
Where:
m: It is the slope of the line
It is a point that belongs to the line
According to the data of the statement we have to:
Substituting in the equation we have:
Answer:
Answer: it is a formula that provide a solution to the quadratic equation .
(-3, 23/2)
the picture i linked shows the step by step