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Lera25 [3.4K]
2 years ago
6

Gcf of 6x^3, 8x^5, 10x^7

Mathematics
1 answer:
Art [367]2 years ago
5 0

Answer: 2x^3

Step-by-step explanation: Find the prime factors of each term in order to find the GCF (Greatest Common Denominator).

Hope this helps you out! ☺

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What is the following quotient?
seropon [69]

Answer:  Choice B) \frac{5\sqrt{11}+5\sqrt{3}}{8}\\\\

==========================================

Work Shown:

\frac{5}{\sqrt{11}-\sqrt{3}}\\\\\\\frac{5(\sqrt{11}+\sqrt{3})}{(\sqrt{11}-\sqrt{3})(\sqrt{11}+\sqrt{3})}\\\\\\\frac{5\sqrt{11}+5\sqrt{3}}{(\sqrt{11})^2-(\sqrt{3})^2}\\\\\\\frac{5\sqrt{11}+5\sqrt{3}}{11-3}\\\\\\\frac{5\sqrt{11}+5\sqrt{3}}{8}\\\\\\

This shows why choice B is the answer.

---------------

Explanation:

  • In the second step, I multiplied top and bottom by (\sqrt{11}+\sqrt{3})
  • This is so we can apply the difference of squares rule in step 3. The difference of squares rule is (x-y)(x+y) = x^2-y^2.
  • In step 4, the square roots cancel out with the squaring operation. The two operations are inverses of one another, which is why they cancel.

So in general, if the denominator is \sqrt{a}-\sqrt{b} and you want to rationalize the denominator, then you should multiply top and bottom by \sqrt{a}+\sqrt{b}. The same applies in reverse as well.

This leads to the denominator becoming (\sqrt{a}-\sqrt{b})(\sqrt{a}+\sqrt{b}) = (\sqrt{a})^2-(\sqrt{b})^2 = a-b

Keep in mind that a \ge 0 and b \ge 0

4 0
2 years ago
Plz read the question then solve
Oksi-84 [34.3K]

Answer:

A =80.5 ft^2

Step-by-step explanation:

The area of a triangle is given by

A = 1/2 bh

The base is 14 ft and the height is 11.5 ft

A = 1/2 * 14 * 11.5

A =80.5 ft^2

3 0
2 years ago
What are the answers to this? PLEASE HELP.
shepuryov [24]

Answer:

Ray : Line NA, Line NB, Line AB

Vertex : Vertex N

Angle: Angle ANB

Parallel Lines: None

Coplanar Points: Points C, A, F, N, B

Collinear Points: Points A, N, B

Segment Addition Postulate: AN + NB = AB

Perpendicular Lines: None

6 0
3 years ago
You have botles of water how many can you buy with a 20$ and a bottle is 1.25​
igomit [66]

Answer:

16 bottles

Step-by-step explanation:

you can buy 16 bottles

7 0
3 years ago
Please help 30 points will give brainliest
Vinil7 [7]

Answer:

thats correct

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
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