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Mars2501 [29]
3 years ago
8

Explain the steps involved in adding two rational expressions.

Mathematics
2 answers:
Andru [333]3 years ago
8 0
Expressions are when they don’t have an equal sign
Tema [17]3 years ago
4 0

Answer:

Factor the denominators of each expression to find the LCD.

Rename each expression, if needed, by multiplying by a form of one to get the LCD.

Add the numerators, keeping the denominators the same.

If possible, simplify by factoring the numerator and dividing out common factors from both the numerator and denominator.

Step-by-step explanation:

If the assignment your working on is Explaining How to Add Rational Expressions, this is correct according to edg...  Good Luck!!!

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Calculate the expected value E(X) of the given random variable X. X is the higher number when two dice are rolled, or the common
Sati [7]

Answer:

4.4722

Step-by-step explanation:

The following table shows the 36 elements of the sample space of the experiment

\left[\begin{array}{cccccccc}&1&2&3&4&5&6\\--&--&--&--&--&--&--\\1\;|&1&2&3&4&5&6\\2\;|&2&2&3&4&5&6\\3\;|&3&3&3&4&5&6\\4\;|&4&4&4&4&5&6\\5\;|&5&5&5&5&5&6\\6\;|&6&6&6&6&6&6\end{array}\right]

From this table we can compute the probabilities :

P(X = 1) = 1/36

P(X = 2) = 3/36

P(X = 3) = 5/36

P(X = 4) = 7/36

P(X = 5) = 9/36

P(X = 6) = 11/36

So the expected value equals

1P(X=1)+2P(X=2)+3P(X=3)+4P(X=4)+5P(X=5)+6P(X=6) =

= 1/36 + 6/36 + 15/36 + 28/36 + 45/36 + 66/36 = 161/36 =  

4.4722

7 0
3 years ago
Help help help help help help help
earnstyle [38]

Answer:

The first one is 90, and the second one is 150

Explanation:

40% of 90 is 36, and

40% of 150 is 60.

8 0
3 years ago
Emile will use less than 1/2 cup of sugar for a recipe what fraction might emile use?
Mandarinka [93]

Answer:

1/4, 1/8, 1/5, *Actually there are a <em>lot</em> of possibilities.*

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
Two trains leave stations 306 miles apart at the same time and travel toward each other. one train travels at 75 miles per hour
Sindrei [870]
Combined speed = 95+75= 170 mph

they will meet in 306/170  =  1.8 hours  or 1 hour 48 minutes.
5 0
3 years ago
Read 2 more answers
1/3x + 8x^4 - 2/3x^2 - x in standard form
leva [86]

Answer:

8x^{4}-2/3x^{2}-2/3x

Step-by-step explanation:

8 0
3 years ago
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