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Kay [80]
3 years ago
8

Which expression is equivalent to StartFraction 2 a + 1 Over 10 a minus 5 Endfraction divided by StartFraction 10 a Over 4 a squ

ared minus 1 EndFraction?
StartFraction 2 a Over (2 a minus 1) squared EndFraction
StartFraction 50 a Over (2 a + 1) squared EndFraction
StartFraction (2 a minus 1) squared Over 2 a EndFraction
StartFraction (2 a + 1) squared Over 50 a EndFraction
Mathematics
2 answers:
dimaraw [331]3 years ago
7 0

For this case we must simplify the following expression:

\frac {\frac {2a + 1} {10a-5}} {\frac {10a} {4a ^ 2-1}} =

We apply double C:

\frac {(4a ^ 2-1) (2a + 1)} {10a (10a-5)} =

We apply distributive property in the numerator and we take common factor 5 in the denominator:

\frac {8a ^ 3 + 4a ^ 2-2a-1} {10a (5 (2a-1))} =

We factor the numerator:

\frac {(2a + 1) ^ 2 (2a-1)} {10a (5 (2a-1))} =\\\frac {(2a + 1) ^ 2 (2a-1)} {50a (2a-1)} =

We simplify:

\frac {(2a + 1) ^ 2} {50a}

Answer:

\frac {(2a + 1) ^ 2} {50a}

Option D

ella [17]3 years ago
3 0

Answer:

its either a or b

Step-by-step explanation:

just took the quiz, if d is wrong, i guessed c and got it wrong, which leaves a and b

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Is (3,7), (3,8), (3,9), (3,10) a function
pogonyaev

Answer:

(3,7), (3,8), (3,9), (3,10) is not a function.

Step-by-step explanation:

A function is defined as a relation in which each input value has only a single output value.

This means that for each x value there should be only one y  

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For the given set of points, we notice that for x=3, y=7,8,9,10 which shows there are many y-values o for a single x-value. This means there are many outputs for a single input. This disqualifies it to be a function.

Thus, (3,7), (3,8), (3,9), (3,10) is not a function.

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3 years ago
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Step-by-step explanation:

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3 years ago
What is 75% of 118? Explain how you solved the problem using words and/or numbers.
Vilka [71]

Answer:

88.5

Step-by-step explanation:

⇒ 75% × 118 = y

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Hope this helps! Good Luck!

4 0
3 years ago
A game consists of rolling a colored die with three red sides, two green sides, and one blue side. A roll of a red loses. A roll
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The expected value of the game is $2.00.

To Find: The fair price to pay to play the game of rolling a colored die with three red sides, two green sides, and one blue side

Now the question arises how to find the Fair Price

We are told that in the game of rolling the colored die;

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Now, the best game to get the fairest price is to play; RRRGGB  i.e (RED, RED, RED, GREEN, GREEN,BLUE)

Fair price = 2(3/6) + 6(1/6) + 0(2/6)

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Read more about Fair Price at; brainly.com/question/24855677

#SPJ10

7 0
2 years ago
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