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3 years ago

This answer is the one I need to know

Mathematics

1 answer:

spayn [35]3 years ago

3 0

The answers for the problems are: 6. -18
9. 6
12. -40

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Which shows all the values of x that make the rational expression undefined? x = 6 x = 7 x = –6 or x = 6 x = –7 or x = 7

n200080 [17]

<h2>Explanation:</h2>

The rational expression is given by:

$E=\frac{2x^2-72}{5x^2-245} \\ \\ Factor \ out: \\ \\ E=\frac{2(x^2-36)}{5(x^2-49)} \\ \\ E=\frac{2(x-6)(x+36)}{5(x-7)(x+7)} : \ \ \ \ a^2-b^2=(a-b)(a+b)$

The denominator can't be zero, therefore:

$(x-7)(x+7)\neq 0 \\ \\ \\ Thus: \\ \\ \boxed{x\neq 7 \ and x \neq -7}$

Finally,<em> the values of x that make the rational expression undefined are </em>

4 0

3 years ago

3. There were 15,876 fans at the first MLS soccer game and 13,759 at the second game. How many more fans were at the first game?

laila [671]

Answer:

2117 more fans

Step-by-step explanation:

So, all you do is just subtract 15,876 from 13,759, which gives 2117 more fans.

Hope I helped !!!

5 0

3 years ago

Last one promise.Please help me.

ella [17]

The answer is 240.5 hope you get the question

3 0

3 years ago

Read 2 more answers

A serving of rice is 1/3 of a cup. How many servings are there in a 2 1/3-cup bag of rice?

iogann1982 [59]

Answer:

Step-by-step explanation:

each cup is 1/3 so divide 2 1/3 by 1/3 to get 7 cups

hope this helps

6 0

3 years ago

The distance light travels in one year is known as a light year. A light year is equal to 5.87 × 1012 miles. The closest that Ea

pashok25 [27]

Answer:

$6.21\times 10^{-5}\ \text{light years}$

Step-by-step explanation:

The distance light travels in one year is known as a light year.

$1\ \text{light year}=5.87\times 10^{12}\ \text{miles}$

The closest that Earth ever gets to Jupiter is $3.65\times 10^8\ \text{miles}$

$3.65\times 10^8\ \text{miles}=\dfrac{1}{5.87\times 10^{12}}\times 3.65\times 10^8\ \text{light years}\\\\=6.21\times 10^{-5}\ \text{light years}$

Hence, the distance it will take light to travel from Earth to Jupiter at this distance is $6.21\times 10^{-5}\ \text{light years}$

4 0

3 years ago