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4 years ago

Davis knows that the area of his square shaped bag is 81 ft sq. What is the length of any side of the bag

Mathematics

2 answers:

mixas84 [53]4 years ago

7 0

20.25 ft sq.

You do 81 divided by 4

Ugo [173]4 years ago

4 0

Divide 81 by four and you get 20 with a remainder of one, so your answer is : one side is 20 feet and 3 inches...Hope this helps...

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CD player: $142.00 Sales tax: 5.5%

zubka84 [21]

The total amount paid by a customer who purchased a CD player at $142.00 and sales tax of 5.5% is $149.81

<h3>Sales tax</h3>

Cost of CD player = $142.00
Sales tax = 5.5%

Amount of sales tax = 5.5% of $142.00

= 5.5/100 × 142

= 0.055 × 142

= $7.81

Total amount paid by customers = Cost of CD player + Amount of sales tax

= $142.00 + $7.81

= $149.81

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2 years ago

jeyben [28]

Answer:

x = -2

Step-by-step explanation:

Given the point, (-2, 9) and the linear equation of a horizontal line, y = 6:

The linear equation of a horizontal line with a slope of zero (m = 0) is y = b, for which the y-intercept is (0, b). Perpendicular lines comprise of the intersection of two lines forming 90° angles.

Since we are given the equation of a horizontal line, then we can assume that the line that intersects a horizontal line must be a vertical line in order to form perpendicular lines.

The linear equation of a vertical line with an undefined slope is x = a, for which the x-intercept is (a, 0). Vertical lines have an undefined slope because these lines do not have any horizontal change. Thus, when you try to solve for its slope, the denominator will have a difference of 0, making the mathematical operation undefined.

We can use the x-coordinate of the given point, (-2, 9), to formulate an equation for a vertical line: x = -2.

Therefore, the equation of the line that goes through y = 6 is x = -2.

Attached is a screenshot of the graph of both equations, y = 6 and x = -2, showing that their intersection form 90° angles, making them perpendicular lines.

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3 years ago

NEED HELP ASAP NOW OR I DIE. -9 to the 28th power as a positive or negative explain

alexdok [17]

Answer:

Positive.

Step-by-step explanation:

Negative to a even power becomes positive

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3 years ago

Find the surface area of the pyramid. The surface area is_square meters.

Alexandra [31]

Answer:

173.26

Step-by-step explanation:

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3 years ago

Harvey rides his bike at an average speed of 12 miles per hour. In other words, he rides 12 miles in 1 hour, 24 miles in 2 hours

timama [110]

Answer:

Step-by-step explanation:

Harvey rides his bike at an average speed of 12 miles in 1 hour, 24 miles in 2 hours, and so on. Let h be the number of hours he rides and d be distance traveled. Write the equation for the relationship between distance and time in point-slope form.

----

You have three points relating time and distance:

(1,12),(2,24),(3,36)

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The slope for your equation would be (24-12)/(2-1) = 12/1 = 12

-------------------------------

The intercept is the distance you would travel in no time; that would be zero.

---------------------------------

The equation is: distance = 12(time)

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3 years ago