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3 years ago

the price for internet on the phone at least $9 a month with starting November the price will be 11.34 what is the % increase

Mathematics

1 answer:

Murljashka [212]3 years ago

8 0

Answer: 26%

Step-by-step explanation:

Percent change: (New-Old)/Old times 100; (11.34-9)/9=0.26x100=26

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Are there concepts/processes to strictly follow in writing radicals as expressions with rational exponents?

Eva8 [605]

Answer:

The concept or process is $x^{\frac{m}{n}}=(\sqrt[n]{x})^m$ .

Step-by-step explanation:

Consider the provided information.

The following property can be used to rewrite each radical as an exponent.

The numerator tells the power of the resulting rational exponent, and the denominator of the rational exponents tells the root of that number.

$x^{\frac{m}{n}}=(\sqrt[n]{x})^m$

For example:

$(27)^{\frac{2}{3}}=(\sqrt[3]{27})^2$

$(27)^{\frac{2}{3}}=(3)^2$

$(27)^{\frac{2}{3}}=9$

Hence, the concept or process is $x^{\frac{m}{n}}=(\sqrt[n]{x})^m$ .

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3 years ago

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Andreyy89

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3 years ago

Every female bear has 3 baby cubs. What is the constant of proportionality for the ratio of cubs to female bears? (4 points)

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Step-by-step explanation:

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3 years ago

A number is decreased by 8

astra-53 [7]

Answer:

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Step-by-step explanation:

I hope this helps.

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3 years ago

Sarah is doing research on the average age of first-year resident physicians. She wants her estimate to be accurate to within 1

WINSTONCH [101]

Answer: The number of first-year residents she must survey to be 95% confident= 263

Step-by-step explanation:

When population standard deviation ( $\sigma$ ) is known and margin of error(E) is given, then the minimum sample size (n) is given by :-

$n=(\dfrac{z^*\sigma}{E})^2$ , z* = Two-tailed critical value for the given confidence interval.

For 95% confidence level , z* = 1.96

As, $\sigma$ = 8.265, E = 1

So, $n= (\dfrac{1.96\times8.265}{1})^2 =(16.1994)^2\\\\= 262.42056036\approx263\ \ \ [\text{Rounded to the next integer}]$

Hence, the number of first-year residents she must survey to be 95% confident= 263

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3 years ago

the price for internet on the phone at least $9 a month with starting November the price will be 11.34 what is the % increase​

the price for internet on the phone at least $9 a month with starting November the price will be 11.34 what is the % increase