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svp [43]
2 years ago
8

For the function defined by y = StartFraction 1 Over x squared EndFraction, if x is doubled, what is the effect on y?

Mathematics
1 answer:
olchik [2.2K]2 years ago
3 0

Answer:

a. y is quartered.

Step-by-step explanation:

y=1/x^2

when x is doubled, the equation becomes:

y=1/(2x)^2=1/(4x^2)

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What is the product of 2X plus 3 and 4X squared minus 5X plus 6
Tju [1.3M]
The product of something means multiplying the terms together.

(2x+3) (4x^2-5x+6)

Secondly you need to distribute the terms to each other (Think of problems like FOIL)

2x * 4x^2 + 2x(-5x) + 2x * 6 + 3 * 4x^2 + 3(-5x) + 3 * 6

Then you must take into account that some of the numbers are negative. (minus-plus rules!)

2x * 4x^2 - 2x * 5x + 2x * 6 + 3 * 4x^2 - 3 * 5x + 3 * 6

Now is the tricky part of simplifying everything. 

2x * 4x^2 = 8x^3 

2x * 5x = 10x^2

2x * 6 = 12x

3 * 4x^2 = 12x^2

3 * 5x = 15x

3 * 6 = 18

8x^3 - 10x^2 + 12x + 12x^2 - 15x + 18

Then you group like terms.

8x^3 - 10x^2 + 12x^2 - 3x + 18

8x^2 + 2x^2 - 3x + 18

The trickiest part of this is distributing all of the terms within the parentheses, once you've done that, it's smooth sailing!


5 0
3 years ago
Which expression is equivalent to
bazaltina [42]

Answer:

<h2><em><u>c</u></em></h2>

Step-by-step explanation:

6m+9q-3mq+4m= 10m + 9q - 3mq = C

7 0
3 years ago
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A marine called from Korea to say the temperature had risen 16 degrees since the sun came up. If it was 9 degrees Fahrenheit whe
jek_recluse [69]

144 degrees Fahrenheit.

you had to multiply 16*9=144

3 0
4 years ago
Help me please 10 pts for you mark you brainliest
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Answer 1: A and C

Step-by-step explanation:

Use distribution law to see which answer match the equation at the top.


Answer 2: 16q + 4

10q and 6q are like terms

10q + 6q = 16q

+

5 - 1

8 0
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I need help on this and if you the first person to answer this correctly then I would mark you BRANILIST​​​
lesantik [10]

Answer:

60

Step-by-step explanation:

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3 years ago
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