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LUCKY_DIMON [66]
3 years ago
13

Pre algebra help ( will give brainliest ) sorry if it's hard to see

Mathematics
1 answer:
Allushta [10]3 years ago
8 0
Think about this...
If we rotate the figure PQRS 180 degrees counterclockwise, where do we land?  Well worry about the reflection in a little bit. :)
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I need help with this math problem
den301095 [7]

Answer:

1). \frac{2}{x^{2}-x-12 }=\frac{2}{(x+3)(x-4)}

2). \frac{1}{x^{2}-16 }=\frac{1}{(x-4)(x+4)}

Step-by-step explanation:

In this question we have to write the fractions in the factored form.

Rational expressions are \frac{2}{x^{2}-x-12 } and \frac{1}{x^{2}-16 }.

1). \frac{2}{x^{2}-x-12 }

Factored form of the denominator (x² - x - 12) = x² - 4x + 3x - 12

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

                                                                           = (x + 3)(x - 4)

Therefore. \frac{2}{x^{2}-x-12 }=\frac{2}{(x+3)(x-4)}

2). \frac{1}{x^{2}-16 }

Factored form of the denominator (x² - 16) = (x - 4)(x + 4)

[Since (a²- b²) = (a - b)(a + b)]

Therefore, \frac{1}{x^{2}-16 }=\frac{1}{(x-4)(x+4)}

8 0
3 years ago
(x – 2)^2 + 20 = 0
seraphim [82]

Answer:

x = 2  ± 2 sqrt(5)i

Step-by-step explanation:

(x – 2)^2 + 20 = 0

Subtract 20 from each side

(x – 2)^2 + 20 -20=0 -20

(x – 2)^2 =- 20

Take the square root of each side

sqrt((x – 2)^2) =±sqrt(- 20)

x-2  = ±sqrt(- 20)

We know sqrt(ab) = sqrt(a) sqrt(b)

x-2  = ±sqrt(- 1) sqrt(20)

We know the sqrt (-1) = i

x-2  = ±i sqrt(4*5)

x-2 = ±i sqrt(4) sqrt(5)

Add 2 to each side

x-2+2 = 2 ±i sqrt(4) sqrt(5)

x = 2 ±i 2 sqrt(5)

x = 2  ± 2 sqrt(5)i

7 0
3 years ago
One-eighth of a number is -4,200.<br><br> What is the number?
Leno4ka [110]
0.125 sorry if I’m wrong :(
7 0
3 years ago
HELP ASAP!!!!!
OlgaM077 [116]
It will take 5 months and the payments will be as follows:

Month 1: $375 to Mini and $3.15 to Murk
Month 2: $375 to Mini and $3.15 to Murk
Month 3: $165.58 to Mini and $209.42 to Murk
Month 4: $375 to Murk
Month 5: $87.36 to Murk 
4 0
3 years ago
Read 2 more answers
Please help! I can't figure this out, i'll give a brainliest
Rus_ich [418]

The linear equation that best fits the data is: y = 10x + 15.

<h3>How to Write the Linear Equation of a Data?</h3>

First, find the slope/unit rate (m) and the y-intercept/starting value, then substitute the values into y = mx + b.

Using two points on the graph, (1, 25) and (2, 35), find the slope (m):

Slope (m) = (35 - 25)/(2 - 1)

Slope (m) = 10/1

Slope (m) = 10

Substitute (x, y) = (1, 25) and m = 10 into y = mx + b to find b

25 = 10(1) + b

25 - 10 = b

b = 15

Substitute m = 10 and b = 15 into y = mx + b

y = 10x + 15

Learn more about the linear equation on:

brainly.com/question/15602982

#SPJ1

3 0
2 years ago
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