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Effectus [21]
4 years ago
14

="TexFormula1" title=" {x}^{2 }+3x + 2 = (x + 2) \times (answer)" alt=" {x}^{2 }+3x + 2 = (x + 2) \times (answer)" align="absmiddle" class="latex-formula">
Mathematics
1 answer:
igomit [66]4 years ago
3 0

x² + 3x + 2 = (x + 2)(x + 1)

consider the factors of the constant term ( + 2 ) which sum to give the coefficient of the x- term ( + 3)

These are + 2 and + 1

x² + 3x + 2 = (x + 2 )(x + 1)


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Find the midpoint between two points on a coordinate plane whose coordinates are (5,7) and (-3,1)
hoa [83]

Step-by-step explanation:

Mid point formula ,

x = (x1+x2)/2 , y = (y1+y2)/2

x = 1 , y = 4

therefore ,midpoint is (x, y)= (1,4)

4 0
3 years ago
Read 2 more answers
The value of a car bought new for $28900 decreases 15% each year. Identify the function for the value of the car. Does the funct
Eva8 [605]

Answer:

<u>V (t) = 28,900 - 4,335t</u>

<u>The function clearly represent a decay</u>

Step-by-step explanation:

1. Let's review the information given to us to answer the question correctly:

Value of the car = $ 28,900

Annual depreciation = 15% = 0.15

2. Identify the function for the value of the car. Does the function represent growth or decay?

Let y represent the value of the car after t years of utilization, let p the price of the car and d, the annual depreciation, therefore:

V (t) = p - (d * t * p)

Replacing with the values we know:

V (t) = 28,900 - (0.15 * t * 28.900)

V (t) = 28,900 - (0.15 * t * 28.900)

<u>V (t) = 28,900 - 4,335t</u>

<u>The function clearly represent a decay.</u>

8 0
4 years ago
The difference between the length and the width of a rectangle is 5 centimeters. What id the length (the longer side) of the rec
Georgia [21]

Answer:

29

Step-by-step explanation:

106=2(x+x+5)

53=2x+5

48=2x

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3 0
3 years ago
What is the general form of the equation of the line shown?<br> Ox+y=0<br> Ox-y=0<br> Ox-y=0
mixer [17]

Answer:

x-y=0

Step-by-step explanation:

7 0
3 years ago
1-Describe the error in the way the calculation of the slope of the two points is set up and/or solved. Please be specific. Do n
Bad White [126]

Answer:

Please check explanations for answer

Step-by-step explanation:

Let’s have two points (5,10) and (15,20)

1. Let’s find the slope of these two points

Mathematically, the slope can be calculated using the formula;

m = (y2-y1)/(x1-x2)

So m = (20-10)/(5-15) = 10/-10 = -1

The error here is the formula used in calculating the slope

The formula should be;

m = (y2-y1)/(x2-x1) and not x1-x2

2. To calculate the slope correctly, we have;

m = (y2-y1)/(x2-x1)

So the slope will be;

m = (20-10)/(15-5) = 10/10 = 1

In the point slope form, the equation can be represented as;

y-y1 = m(x-x1)

Let’s use the point (5,10)

y- 10 = 1(x-5)

The above is the point slope form

using one of the points and the correct slope of the line

6 0
3 years ago
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