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lorasvet [3.4K]
2 years ago
6

3. At the beginning of the day, a water tank contained 526.8 gallons of water. During the day,

Mathematics
2 answers:
dezoksy [38]2 years ago
7 0

Answer:

Step-by-step explanation:

the total amount of water used that day = 526.80 - 318.05 = 208.75 gallons.

Andru [333]2 years ago
5 0

Answer:

208.85

Step-by-step explanation:

It is 208.85 because when you have .8 + .05 =.85

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9

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35% of 15 is what number
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The length of a rectangle is 5 meters less than its width. The perimeter is 78 meters. Find the dimensions of the rectangle
Alika [10]

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A rectangle has one of its sides on the x-axis and corners of the opposite side on the piece of the parabola y = 12 − x 2 above
saw5 [17]

Answer:

A(x) = 24x - 2x^3

Step-by-step explanation:

first we need to visualize what the question is trying to represent

  • A rectangle with one of its sides on the x-axis
  • The corners of the opposite two sides of the rectangle intersect with a parabola
  • the equation of the parabola is y = 12 - x^2

the equation of the parabola can also be written as

y = -x^2 + 12 this shows that the parabola has a \cap shape and the turning point (peak) lies at the y-axis at y = 12. The parabola is symmetric along the y-axis!

  • right corner of the lower side of the rectangle has the coordinates (x,0)

we can also say that the coordinates of the lower left side are (-x,0). This is because the parabola is symmetric along the y-axis.

Solution:

We have enough information to express the sides lengths of the rectangle:

1) Lower side, (L)

We'll name the lower side 'L' and since this is a rectangle, this side length is the same as the upper side.

The lower side coordinates are (-x,0) and (x,0). Hence the side length is the difference of the two coordinates.

L = x-(-x)

L = 2x

2) The Left and Right side have the same height (H)

since the the lower side is on the x-axis (y=0), the only side moving is the upper one, i.e the coordinates of the upper corners are (0,y) where y = 12- x^2. The side length of either the left or right sides is y

H = y

H = 12 - x^2

The Area of the rectangle is:

Area\,\,= L \times H

Area\,\,= 2x(12 - x^2)

Area\,\,= 24x-2x^3

3 0
3 years ago
Please help this is due very soon show the steps in how you found the answer
meriva

Answer:

4x-6

Step-by-step explanation:

this is correct ans

4 0
3 years ago
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