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4 years ago

33/(-3)+6= (-20)/5 - 2= what is the greater value?

1 answer:

5 0

The way to do this mathematically is by incorporating the Order of Operations.(Please Excuse My Dear Aunt Sally) This stands for (do first:) Parenthesis, then exponents, after that multiplication, now division, then addition, and finally subtraction. The side on the right then equals -5 while the side on the right equals -6. The greater value is the left side. If you have any other questions, just ask me!

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3.141 in expanded notation

Eva8 [605]

3.141 in expanded notation is 3 + 0.1 + 0.04 + 0.001

Hope that helps :)

8 0

3 years ago

Read 2 more answers

Four sets of data are shown in box-and-whisker plots. Which set has the largest 3rd Quartile value?

Airida [17]

Answer:

I think that is A.

Step-by-step explanation:

7 0

3 years ago

A new pizza restaurant uses paid advertisement to increase pizza sales on Mondays. The table below is a record of the restaurant

Fiesta28 [93]

Answer:

Part A:

Find the attached

Part B:

y = 23.875x + 279.625

Part C:

Total Sales increase from one week to the next by $23.875. Therefore, it is true to say that the paid advertisement is responsible for the restaurant's increase in pizza sales during the first quarter.

Part D:

The restaurant's sales for the Monday of the 20th week is expected to be $757.13

Step-by-step explanation:

Part A:

The scatter-plot can be obtained from stat-crunch by following the given steps below;

The first step is to enter the data given into any two adjacent columns of Stat-crunch application.

Next, click on Graph then Scatter plot

In the pop-up window that appears, select the week column as the X variable and the Total Sales column as the Y variable

Click Compute. Stat-crunch returns the scatter-plot as shown in the attachment below.

Part B:

The total sales for week 5 is given as 399 while that of week 13 is 590. Therefore, we shall determine the equation for the line of best fit using the points;

( 5, 399) and ( 13, 590)

The first step would be to determine the slope of this line;

slope = (590 - 399)/ (13 - 5)

= 23.875

The equation of the line in slope-intercept form is thus;

Sales = 23.875(Week) + c

We need to determine c, the y-intercept. We can use the point ( 5, 399);

399 = 23.875(5) + c

c = 279.625

The equation of the line of best fit is thus;

y = 23.875x + 279.625

Part C:

The slope of the equation for the lines of best fit was found to be 23.875. This value is positive which implies that the Total Sales increase from one week to the next by $23.875. The slope in regression is defined as the change in y for every unit change in x.

Therefore, it is true to say that the paid advertisement is responsible for the restaurant's increase in pizza sales during the first quarter.

Part D:

The equation for the line of best fit was found to be;

y = 23.875x + 279.625

where y denotes the total sales and x the corresponding week. We are required to determine y when x is 20;

Y = 23.875(20) + 279.625

y = 757.125

Therefore, the restaurant's sales for the Monday of the 20th week is expected to be $757.13

6 0

3 years ago

Simplify: (-1+4i)(-12-9i)

sergiy2304 [10]

-1 (-12 - 9i) + 4i (-12 - 9i)

= 12 + 9i + -48i + 9i^2

= 9i^2 + 39i + 12

5 0

3 years ago

Read 2 more answers

The owner of an audio store received a shipment of portable stereos at a cost of $102.30 each. If he sells the stereos for $181.

Novosadov [1.4K]

So here, we are starting with two numbers: the original price, and the price after the percent increase.

First, we need to find the differences between the prices to figure out how much of a difference the percent made. $181.09 - $102.30 = $78.79

$78.79 is how much money the original price was increased by. We can find the percent change using this, since this number is what percent of the original price went up.

So now: $78.78 / $102.30 = .77018

And now, we convert that to percent: 77%

The markup was 77%.

3 0

3 years ago