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Irina18 [472]
3 years ago
14

Is 3.12 repeating a irrational or a rational

Mathematics
2 answers:
Phantasy [73]3 years ago
8 0

Answer:

repeating decimals are rational becoz they can be written in the form p/q

Step-by-step explanation:

Firdavs [7]3 years ago
5 0

Answer:

a repeating decimal can be written as a fraction using algebraic methods, so any repeating decimal is a rational number.

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The sum of three consecutive integers is 21 larger than twice the smallest integer. find the integers.
Darya [45]
Let the integers be x-1, x, x+1.

Given,

x -1 + x + x + 1 = 21 + 2(x - 1)

3x = 21 + 2x - 2

x = 19

Hence, the three integers are 18, 19 and 20.
7 0
3 years ago
Plzzz help thank you very much!!
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80.

The opposite side of the arc is equal to its opposite.

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On Friday 80% of the costumers who bought tickets at a movie theater also bought popcorn. There were 320 costumers who bought ti
Nimfa-mama [501]

Answer:

256

Step-by-step explanation:

I judt know I don't know hoet to explain sorry hope it helps

8 0
2 years ago
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zaharov [31]

Answer:

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Step-by-step explanation:

4 0
3 years ago
Simplify the trigonometric expression.
Natasha_Volkova [10]
First we are going to find the common denominator of both fractions. To do that, we are going to multiply their denominators:
(1+sin \alpha )(1-sin \alpha )=1-sin^2 \alpha

Now we can rewrite our expression using the common denominator:
\frac{1-sin \alpha }{1-sin^2 \alpha } + \frac{1+sin \alpha }{1-sin^2 \alpha} = \frac{2}{1-sin^2 \alpha}

Finally, we can use the trig identities: 1-sin^2 \alpha =cos^2 \alpha and sec \alpha = \frac{1}{cos \alpha } to simplify our trig expression:
\frac{2}{cos^2\alpha}=2sec^2 \alpha

We can conclude that the correct answer is the fourth one.
5 0
3 years ago
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