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earnstyle [38]
3 years ago
13

What’s the answer for this question

Mathematics
1 answer:
scoundrel [369]3 years ago
7 0

Answer:

I don't remember how to solve this and I also hate it so sorry..

Step-by-step explanation:

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HELP PLEASE !!! Place each expression under the equivalent expression in the table.
tino4ka555 [31]

Answer:

Option 3,5 are under first expression and Option 1,2 are under second expression.

Step-by-step explanation:

1). \frac{(x-4)(x+2)}{x^{2}+5x+6}+\frac{-3x^{2}+24x-20}{(x+3)(4x-5)}

=\frac{(x-4)(x+2)}{(x+3)(x+2)}+\frac{-3x^{2}+24x-20}{(x+3)(4x-5)}=\frac{(x-4)}{(x+3)}+\frac{-3x^{2}+24x-20}{(x+3)(4x-5)}

=\frac{(x-4)(4x-5)-3x^{2}+24x-20}{(x+3)(4x-5)}

=\frac{4x^{2}-5x-16x+20-3x^{2}+24x-20}{(x+3)(4x-5)}=\frac{x^{2}+3x}{(x+3)(4x-5)}

=\frac{x(x+3)}{(x+3)(4x-5)}=\frac{x}{4x-5}

2). \frac{3x}{4x-5}-\frac{4x^{2}}{8x^{2}-10x}=\frac{3x}{4x-5}-\frac{4x}{8x-10}=\frac{3x(8x-10)-4x(4x-5)}{(4x-5)(8x-10)}

=\frac{24x^{2}-30x-16x^{2}+20x}{(4x-5)(8x-10)}

=\frac{8x^{2}-10x}{(4x-5)(8x-10)}=\frac{x(8x-10)}{(4x-5)(8x-10)}=\frac{x}{4x-5}

3). \frac{6x^{2}}{x^{2}-7x+10}\div \frac{2x}{x-5}

=\frac{6x^{2}}{x^{2}-7x+10}\times \frac{x-5}{2x}

=\frac{3x(x-5)}{x^{2}-7x+10}

=\frac{3x(x-5)}{(x-5)(x-2)}=\frac{3x}{x-2}

4). \frac{-x}{4x-5}-\frac{4x^{2}}{16x^{2}-22x}

=\frac{-x}{4x-5}-\frac{2x}{8x-11}

=\frac{-x(8x-11)-2x(4x-5)}{(4x-5)(8x-11)}

=\frac{-8x^{2}+11x-8x^{2}+10x}{(4x-5)(8x-11)}

=\frac{-16x^{2}+21x}{(4x-5)(8x-11)}=\frac{-x(16x-21)}{(4x-5)(8x-11)}

5). \frac{3x^{2}}{x+3}\times \frac{2(x+3)}{2x^{2}-4x}

=\frac{6x^{2}(x+3)}{2x(x+3)(x-2)}=\frac{3x}{x-2}

6). \frac{5x^{2}}{x-2}\times \frac{2x+6}{8x^{2}-4x}

=\frac{10x^{2}(x+3)}{4x(x-2)(2x-1)}

4 0
3 years ago
Read 2 more answers
Pleaseeee help!!! I will mark you as brainlinest for correct answer!!!!
Maru [420]
Evaluate the function at 2. That is f(2).
Evaluate the function at 0. That is f(0).

the average rate of change from 0 to 2 is (f(2) - f(0))/(2 - 0)

f(x) = 120(0.1)^x

f(2) = 120(0.1)^2 = 120 * 0.01 = 1.2

f(0) = 120(0.1)^0 = 120 * 1 = 120

average rate of change = (1.2 - 120)/(2 - 0) = -118.8/2 = -59.4
8 0
4 years ago
What is the equation of the axis of symmetry of the graph of y + 3x – 6 = –3(x – 2)2 + 4?
son4ous [18]
 <span>What is the equation of the axis of symmetry of the graph of y + 3x – 6 = –3(x – 2)2 + 4?


</span>A. x=3/2
8 0
4 years ago
Read 2 more answers
One hundred teenagers are sampled at random about how much time (in hours) they spend doing homework on a given night. The resul
DerKrebs [107]

Answer:

0.43x250,000 = 107,500 teenagers.

Step-by-step explanation:

43% of students spend 1 hr on HW< and there are 25,000 students.

43% is basically just 43/100, so 0.43x250,000 is 107,500 students.

8 0
3 years ago
Two equivalent ratios 3:4<br> What are 2 equivalent ratios to 3:4
Step2247 [10]

Answer:

9:12 and 12:16

Step-by-step explanation:

3/4 = 0.75

9/12 = 0.75

12/16 = 0.75

4 0
4 years ago
Read 2 more answers
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