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Tomtit [17]
3 years ago
7

Solve this with your work shown. (50 POINTS.)​

Mathematics
1 answer:
Ket [755]3 years ago
7 0

top problems:

1-) x²-2x-8

<h2>(x-4)(x+2)</h2>

---------------------

2-) 4s²-4s+1

<h2>(2s-1)²</h2>

---------------------

3-) 6x²-3-7x

<h2>(2x-3)(3x+1)</h2>

---------------------

4-) 4u²+8u

<h2>4u(u+2)</h2>

---------------------

5-) t²-15

<h2>2t</h2>

---------------------

6-) 3x²-x-4

<h2>(3x-4)(x+1)</h2>

bottom problems:

1-) \frac{1}{4},-1

y=x²+\frac{3x}{4}-\frac{1}{4}

---------------------

2-)\sqrt{2},\frac{1}{3}

<h2>y=x²-\frac{x}{3}-\sqrt{2}x+\frac{\sqrt{2} }{3}</h2>

---------------------

3-) 0, √5

<h2>y=x²-x√5</h2>

---------------------

4-) 1,1

<h2>y= x²-2x+1</h2>

---------------------

5-)-\frac{1}{4}, \frac{1}{4}

<h2>y=x²-\frac{1}{16}</h2>

---------------------

6-) 4,1

<h2>y=x²-5x+4</h2>

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Arisa [49]

Complete question :

A 12-foot by 15-foot patio is increased by placing a stone border around the patio. The width of the border is the same all around the patio.The perimeter of the patio after it is expanded is 74 feet. The equation which represents x, the width of the border is 2[(12+2x)+15+2x)]=74. What is the width of the border?

1) 2 1/2 feet

2) 3 feet

4) 5 feet

5) 8 1/2 feet

Answer:

2.5

Step-by-step explanation:

Solving for X in the perimeter equation :

2[(12+2x)+15+2x)]=74

Open the bracket

2[(12 + 2x + 15 + 2x)] = 74

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54 + 8x = 74

8x = 74 - 54

8x = 20

x = 20/8

x = 2.5

Hence, width fo border = 2.5

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3 years ago
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Step-by-step explanation:

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1b. We just subtract both of the functions.

(8x - 3) - (4x + 5) =

4x - 8

1c.

(8x - 3)(4x + 5)

32 {x}^{2}  + 28x - 15

1d.

\frac{8x - 3}{4x + 5}  = 2 - \frac{13}{4x + 5}

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Answer:

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Step-by-step explanation:

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3 years ago
Five college students' scores on a test are 25, 25, 30, 35, and 40. what is the mean for this set of scores?
klio [65]

Answer:

Mean= 31

Step-by-step explanation:

To find the mean you need to add all the number together and then divide by how many ever numbers there are.

In this case

25 + 25 + 30 + 35 + 40=155

There are 5 numbers so you would divide by 5

155/5

=31

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1 year ago
Identify the factors of x2 − 5x − 24.
lutik1710 [3]
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