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3 years ago

Evaluate the expression without using a calculator.

Mathematics

2 answers:

Keith_Richards [23]3 years ago

7 0

Answer:

Step-by-step explanation:

Since 16 is to the power of a negative fraction, we know it is going to be positive and less than one . Therefore the only answer available would be 1/2 or option D

lina2011 [118]3 years ago

3 0

D is your answer because when you do 16 to the -1/4 power your answer will be .5

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Ede4ka [16]

$\mathbb P(286$
$\mathbb P(286$

The empirical rule says that approximately 68% of any normal distributed data set lies within one standard deviation of the mean.

$\mathbb P(-2$
$\implies\mathbb P(-2$

The same rule states that about 95% lies within two standard deviations of the mean. Using this rule, and the fact that any normal distribution is symmetric about its mean, you have

$\mathbb P(-2$
$0.95=2\mathbb P(-2$
$\implies\mathbb P(-2$

$\implies\mathbb P(-2$

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3 years ago

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IrinaK [193]

Answer: 9: c , 10: a ,11 :d 12: a

Step-by-step explanation:

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3 years ago

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weeeeeb [17]

Answer:

r = 3072. A 4 is multiplied times each term to arrive at the next term. OR ... divide a2 by a1 to find the common ratio of 3072. :)

Step-by-step explanation:

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3 years ago

A binomial has been partially factored, as shown below:

sesenic [268]

Answer: x-6

Explanation: x^2 is a DOTS, or difference of two squares. 36 is a perfect square and x^2 is a perfect square, and you are finding the difference. Therefore, you can do (x+6)(x-6). This works with any number. If there was x^2-16, it could be factored to (x+4)(x-4)

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3 years ago

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5.2x+8+2.1x-3 which is an equivalent expression by combining like terms A. 5.2x+8+2.1x-3 B. 5.2x+5+2.1x C 13.2x-0.9x D 7.3x+5

satela [25.4K]

Answer: 7.3x + 5

Step-by-step explanation:

For us to solve the question, we have to solve 5.2x+8+2.1x-3 and the answer gotten will allow us know the equivalent expression.

= 5.2x+8+2.1x-3

= 5.2x + 2.1x + 8 - 3

= 7.3x + 5

Therefore, the correct answer is 7.3x + 5

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3 years ago