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Zepler [3.9K]
3 years ago
11

What is the value of (-2.2) (2.2) (-1.6)

Mathematics
2 answers:
Firdavs [7]3 years ago
3 0
-2.2*2.2*-1.6=7.744
Hope this helps!
Pani-rosa [81]3 years ago
3 0
7.744 is the answer. Hope this helps.
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A café owner is designing a new menu and wants to include a decorative border around the outside of her food listings. Due to th
kipiarov [429]

The 13-in. by 9-in. rectangle where the food listings fit has an area of 13 in. * 9 in. = 117 in.^2

Adding 48 in.^2 for the border, the total area of the menu with the border will be 117 in.^2 + 48 in.^2 = 165 in.^2

The border has to have uniform width around the menu. We need to find the width of the border. Let the border be x inches wide. Then since you have a border at each of the 4 sides, the border will add 2x to the length of the rectangle and 2x to the width of the rectangle. The menu will have a length of 2x + 13 and a width of 2x + 9. The area of the larger rectangle must by 165 in.^2. The area of a rectangle is length times width, so we get our equation:

(2x + 13)(2x + 9) = 165

Multiply out the left side (use FOIL or any other method you know):

4x^2 + 18x + 26x + 117 = 165

4x^2 + 44x + 117 = 165

4x^2 + 44x - 48 = 0

Divide both sides by 4.

x^2 + 11x - 12 = 0

Factor the left side.

(x + 12)(x - 1) = 0

x + 12 = 0 or x - 1 = 0

x = -12 or x = 1

The solution x = -12 is not valid for our problem because the width of a border cannot be a negative number. Discard the negative solution.

The solution is x = 1.

Answer: The border is 1 inch wide.

Check. Add 2 inches to the length and width of the food listings rectangle to get 15 inches by 11 inches. A = 15 in. * 11 in.= 165 in.^2. Now subtract the area of the border, 48 in.^2, 165 in.^2 = 48 in.^2 = 117 in.^2, and you get the area of the 13-in. by 9-in. rectangle. This shows that our solution is correct.

6 0
3 years ago
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This morning Gwen found that the snow on the sidewalk was 5 and 3/8 inches deep. At lunch the snow was 2 and 7/8 inches deep at
Nutka1998 [239]

Answer:

2.75

step-by-step explanation:

5 and 3/8 inches = 5 + 3/8 =  5 + 0.625 = 5.625

2 and 7/8 inches =  2 + 7/8 = 2 + 0.875 = 2.875

the inches that snow melted: 5.625 - 2.875 = 2.750

5 0
3 years ago
PLEASE HELP ME THANK YOU!
krok68 [10]
You would have to watch 62 3D movies to make an annual pass the less expensive option out of the two of them.

62x25 = 1550
4 0
3 years ago
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particals have enough energy to break free from eachother and can move around freely; particals spread out in different directio
Burka [1]
I cant find an answer for this sorry
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3 years ago
How do I graph this ?
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Answer:

you graph it

Step-by-step explanation:

put it in yo cal

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