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12345 [234]
3 years ago
9

Which expression would be easier to simplify if you used the associative

Mathematics
1 answer:
Fynjy0 [20]3 years ago
3 0

Answer:

I believe its A.

Step-by-step explanation:

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A function follows the rule y = -75 - 5x. When the function's output is 25, the equation is 25 = -75 - 5x.
brilliants [131]

Answer:

x = 20

Step-by-step explanation:

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7 0
3 years ago
What are the roots to<br> the equation<br> 2x² + 6x-1=0?
lys-0071 [83]

Answer:

The roots of  equations are as m =  \frac{-3}{2} + \frac{\sqrt{11} }{2}  And n =  \frac{-3}{2} - \frac{\sqrt{11} }{2}    

Step-by-step explanation:

The given quadratic equation is 2 x² + 6 x - 1 = 0

This equation is in form of a x² + b x + c = 0

Let the roots of the equation are ( m , n )

Now , sum of roots = \frac{ - b}{a}

And products of roots = \frac{c}{a}

So, m + n = \frac{ - 6}{2} = - 3

And m × n =  \frac{ - 1}{2}

Or, (m - n)² = (m + n)² - 4mn

Or, (m - n)² = (-3)² - 4 (\frac{ - 1}{2})

Or, (m - n)² = 9 + 2 = 11

I.e m - n = \sqrt{11}

Again m + n = - 3    And m - n = \sqrt{11}

Solving this two equation

(m + n) + ( m - n) = - 3 + \sqrt{11}

I.e 2 m =  - 3 + \sqrt{11}

Or, m = \frac{-3}{2} + \frac{\sqrt{11} }{2}

Similarly n =  \frac{-3}{2} - \frac{\sqrt{11} }{2}      

Hence the roots of  equations are as m =  \frac{-3}{2} + \frac{\sqrt{11} }{2}  And n =  \frac{-3}{2} - \frac{\sqrt{11} }{2}      Answer

6 0
3 years ago
What is -12 divided by 2/3? A. –36 B. –24 C. –18 D. –8
vazorg [7]

What is -12 divided by 2/3?


your answer is -18

5 0
2 years ago
GIVING 15 POINTS!!! PLEASE HELP
Lena [83]

1)  |−11| = 11, therefore Peter is at a distance of 11 feet

2)  Jimmy, because each of the two points is fraction 5 over 8 unit away from 0

3)  36 + 28=64        4x4=36+4x7=28    36+28=64

                                7+9=16   4x16=64

6 0
2 years ago
Carlotta is making blue and orange necklaces in several lengths. For each necklace, her ratio of blue beads to orange beads is 3
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40
 exatly or go with you guts and find out


4 0
2 years ago
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