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Agata [3.3K]
3 years ago
13

Please help!

Mathematics
2 answers:
alisha [4.7K]3 years ago
5 0

Answer: I know its not up there. When I did that I got (x+6)(x-2)

Ivenika [448]3 years ago
3 0

Answer:

B.   (x - 6)(x + 2).

Step-by-step explanation:

x^2 - 4x - 12

We need 2 numbers whose product is the last number -12 and whose sum is the coefficient of x (-4).

These numbers are -6 and + 2.

So the factors are (x - 6)(x + 2).

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HELPP PLS ASAP I NEED HELP
AysviL [449]

Answer:

Option (b) second one is the correct answer

4 0
3 years ago
SCALCET8 4.7.011. Consider the following problem: A farmer with 950 ft of fencing wants to enclose a rectangular area and then d
kaheart [24]

Answer:

For any rectangle, the one with the largest area will be the one whose dimensions are as close to a square as possible.

However, the dividers change the process to find this maximum somewhat.

Letting x represent two sides of the rectangle and the 3 parallel dividers, we have 2x+3x = 5x.

Letting y represent the other two sides of the rectangle, we have 2y.

We know that 2y + 5x = 750.

Solving for y, we first subtract 5x from each side:

2y + 5x - 5x = 750 - 5x

2y = - 5x + 750

Next we divide both sides by 2:

2y/2 = - 5x/2 + 750/2

y = - 2.5x + 375

We know that the area of a rectangle is given by

A = lw, where l is the length and w is the width. In this rectangle, one dimension is x and the other is y, making the area

A = xy

Substituting the expression for y we just found above, we have

A = x (-2.5x+375)

A = - 2.5x² + 375x

This is a quadratic equation, with values a = - 2.5, b = 375 and c = 0.

To find the maximum, we will find the vertex. First we find the axis of symmetry, using the equation

x = - b/2a

x = - 375/2 (-2.5) = - 375/-5 = 75

Substituting this back in place of every x in our area equation, we have

A = - 2.5x² + 375x

A = - 2.5 (75) ² + 375 (75) = - 2.5 (5625) + 28125 = - 14062.5 + 28125 = 14062.5

Step-by-step explanation:

6 0
3 years ago
Convert.<br> 1. 2 mi = yard
monitta

Answer:

2112 yards

Step-by-step explanation:

1.2 mi = 2112 yards

4 0
3 years ago
Allison paid $297.50 for a new laptop. Last week, the price of the laptop<br> was $350.
Thepotemich [5.8K]

15%

350x0.15=52.5

350-52.5=297.5

4 0
3 years ago
PLEASE HELP ASAP!!!!!!
zhannawk [14.2K]
The answer is A  to change an exponent from negative to positive, just move it into either the numerator or denominator depending on where it is to begin with. 
7 0
2 years ago
Read 2 more answers
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