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Mariana [72]
3 years ago
7

8 copies of the sum of 4 thirds and 2 more. Write an expression to match, and then evaluate.

Mathematics
1 answer:
liberstina [14]3 years ago
4 0

Answer:

Expression: 8\times(\frac{4}{3}+2)

26\frac{2}{3}

Step-by-step explanation:

We are asked to write an expression and evaluate the expression.

4-thirds would be \frac{4}{3}.

The sum of 4-thirds and 2 more would be \frac{4}{3}+2.

8 copies of 4-thirds and 2 more would be 8 times \frac{4}{3}+2.

8\times(\frac{4}{3}+2)

Let us solve the expression.

8\times(\frac{4}{3}+\frac{2*3}{3})

8\times(\frac{4}{3}+\frac{6}{3})

8\times(\frac{4+6}{3})

8\times(\frac{10}{3})

\frac{8\times10}{3}

\frac{80}{3}

26\frac{2}{3}

Therefore, the solution for our given equation would be 26\frac{2}{3}.

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270 counter clockwise is the same as 90 clockwise.

For a 90° clockwise or 270° counter clockwise, take the opposite of the x coordinate then switch the coordinates.

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3a. The graph shows a school's profit P for selling x lunches on one day. PART A: What is the school's profit for selling 120 lu
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3 years ago
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mojhsa [17]

Given:

Side length = 12 in

To find:

The area of the regular polygon.

Solution:

Number of sides (n) = 6

Let us find the apothem using formula:

$a=\frac{s}{2 \tan \left(\frac{180^\circ}{n}\right)}

where s is side length and n is number of sides.

$a=\frac{12}{2 \tan \left(\frac{180^\circ}{6}\right)}

$a=\frac{6}{ \tan (30^\circ)}

$a=\frac{6}{ \frac{1}{\sqrt{3} }}

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Area of the regular polygon:

$A=\frac{1}{2}(\text { Perimeter })(\text { apothem })$

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Suppose that a jewelry store tracked the amount of emeralds they sold each week to more accurately estimate how many emeralds to
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Answer: point estimate = 3.88

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Step-by-step explanation:

Confidence interval is written in the form,

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The sample mean, x is the point estimate for the population mean. Let m represent the margin of error. Since the confidence interval is given as (3.25 , 4.51), it means that

x - m = 3.25

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x = 7.76/2

x = 3.88

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