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Serjik [45]
2 years ago
8

Question 12(Multiple Choice Worth 1 points)

Mathematics
1 answer:
rusak2 [61]2 years ago
7 0

Answer:

\frac1{25}

Step-by-step explanation:

Hello!

Let's use a couple of exponent rules:

  • \frac{a^x}{a^b} = a^{x - b}
  • a^{-x} = \frac{1}{a^x}

Let's utilize the first rule and simplify the fraction.

<h3>Simplify</h3>
  • \frac{5^4}{5^6}
  • 5^{4 - 6}
  • 5^{-2}

Now, we can utilize the second exponent rule, as we have a base to the power of a negative number.

<h3>Simplify</h3>
  • 5^{-2}
  • \frac1{5^2}
  • \frac1{25}

The answer is option 1, \frac{1}{25}.

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The measure of angle J is 19.8°, and the correct option is D.

<h3>What is the formula of cosine?</h3>

The law of cosine or cosine rule in trigonometry is a relation between the side and the angles of a triangle. Suppose a triangle with sides a, b, c and with angles cosC.

The following formula is used to find the angle j is;

\rm j^2 = h^2 + i^2 -2hicosC

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Substitute all the values in the formula;

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2 years ago
Write an recursive formula for An, the nth term of the sequence<br> 5, -2, -9,
oksian1 [2.3K]

Given:

The given sequence is:

5,-2,-9,...

To find:

The recursive formula for a_n, the nth term of the sequence.

Solution:

We have,

5,-2,-9,...

Here, the first term is 5.

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The common difference is -7.

The recursive formula for the nth term of the sequence is

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Putting d=-7 in the above formula, we get

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a_n=a_{n-1}-7

Therefore, the recursive formula for the nth term of the sequence is a_n=a_{n-1}-7.

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Use the least common denominator to enter an equivalent fraction for each fraction
adelina 88 [10]

Answer:

The least common denominator of the fraction is 14

1/2=  7/14

1/7=  2/14

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3 years ago
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