What is an an expression that is equivalent to 9 ( 3x + 5 + x ) without using parentheses.

Mathematics

1 answer:

torisob [31]2 years ago

6 0

Answer:

27x + 45 + 9x

37x + 45

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

6^2=36

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$8 \frac{1}{3} - 5 \frac{1}{2} = \frac{25}{3} - \frac{11}{2} = \frac{50}{6} - \frac{33}{6} = \frac{17}{6} = 2 \frac{5}{6}$

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What is the length of arc QR? A. 1/3 π B. 10/3 π C. 5/3 π D. 20/3 π

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D. 20/3 I think it’s the answe

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A music buff wants to estimate the percentage of students at a midwestern university who believe that elvis is still alive. how

gulaghasi [49]

Since we are not given any information about the proportion, we will assume the sample proportion to be 0.50

so,
p = 0.50
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z = 1.645 (Z value for 90% confidence interval)

The margin of error for population proportion is calculated as:

$E=z* \sqrt{ \frac{p(1-p)}{n} } \\ \\ 
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This means 271 students should be included in the sample

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