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alexgriva [62]
3 years ago
5

How to do operations with exponents

Mathematics
1 answer:
Dennis_Churaev [7]3 years ago
4 0

What do you mean? In the order of operations exponents would be 2nd (pemdas) parentheses, exponents, multiplication,division, addition, subtraction

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Select all irrational numbers.
Maurinko [17]

Answer:

OPTION A

OPTION B

OPTION C

Step-by-step explanation:

Irrational numbers are the subset of real numbers. Their decimal representation neither form a pattern nor terminate.

OPTION A: $ \sqrt{\frac{1}{2}} $

This is equal to $ \frac{1}{\sqrt{2}} $.

$ \sqrt{2} = 1.414... $ is non-terminating. So, it is an irrational number. Hence, the reciprocal of an irrational number would also be irrational. So, OPTION A is irrational.

OPTION B: $ \sqrt{\frac{1}{8}} $

This is equal to $ \frac{1}{2\sqrt{2}} $. Using the same logic as Option A, we regard OPTION B to be irrational as well.

OPTION C: $ \sqrt{\frac{1}{10}} $

This is equal to $ \frac{1}{\sqrt{5}\sqrt{2}} $.

Both $ \sqrt{5} $ and $ \sqrt{2} $ are irrational. So, the product and the reciprocal of the product is irrational as well. So, OPTION C is an irrational number.

OPTION D: $ \sqrt{\frac{1}{16}} $

16 is a perfect square and is a rational number. $ \frac{1}{\sqrt{16}} $ = $ \frac{1}{4} $. This is equal to 0.25, a terminating decimal. So, OPTION D is a rational number.

OPTION E: $ \sqrt{\frac{1}{4}} $

4 is a perfect square as well. $ \frac{1}{\sqrt{4}} = \frac{1}{2} = 0.5 $, a terminating decimal. So, OPTION E is a rational number.

5 0
3 years ago
Factor the following expression completely:
Zigmanuir [339]

Answer:

40z + 5

Step-by-step explanation:

I'm assuming you need to factor 32z + 4 + 8z + 3 - 4 + 2

  • 32z + 8z ( since they both have the same variable ) = 40z
  • 4 + 3 - 4 + 2 ( since they have to variables ) = 5

Hope this helped

5 0
3 years ago
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Answer: 24

Step-by-step explanation: The triangle is a 45-45-90. It’s an isosceles triangle

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What is the missing length?
Tasya [4]
Answer: maybe 20 cm
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If the cost of a bat and a baseball combined is $1.10 and the bat costs 41.00 more than the ball, how much is the ball?
shepuryov [24]

Step-by-step explanation:

7 0
3 years ago
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