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cupoosta [38]
3 years ago
14

A rectangular box is to have a square base and a volume of 20 ft3. If the material for the base costs $0.30 per square foot, the

material for the sides costs $0.10 per square foot, and the material for the top costs $0.20 per square foot, determine the dimensions of the box that can be constructed at minimum cost.
Mathematics
1 answer:
fomenos3 years ago
8 0

Answer:

Step-by-step explanation:

Im sorry i dont really know ur anwer.  Hope someone else can help you.

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Someone please help me with this​
Sedbober [7]

Answer:

The area of the shaded figure is:

  • <u>20 units^2</u>

Step-by-step explanation:

To obtain the area of the shaded figure, first, you must calculate this as a rectangle, with the measurements: wide (4 units), and long (6 units):

  • Area of a rectangle = long * wide
  • Area of a rectangle = 6 * 4
  • Area of a rectangle = 24 units^2

How the figure isn't a rectangle, you must subtract the triangle on the top, so, now we calculate the area of that triangle with measurements: wide (4 units), and height (2 units):

  • Area of a triangle = \frac{wide*height}{2}
  • Area of a triangle = \frac{4*2}{2}
  • Area of a triangle =\frac{8}{2}
  • Area of a triangle = 4 units^2

In the end, you subtract the area of the triangle to the area of the rectangle, to obtain the area of the shaded figure:

  • Area of the shaded figure = Area of the rectangle - Area of the triangle
  • Area of the shaded figure = 24 units^2 - 4 units^2
  • <u>Area of the shaded figure = 20 units^2</u>

I use the name "units" because the exercise doesn't say if they are feet, inches, or another, but you can replace this in case you need it.

5 0
3 years ago
In the 30-60-90 triangle below, side s has a length of and the hypotenuse has a length of
Zepler [3.9K]
Are there any dimensions on the triangle? or is it in terms of s? if so the answer would be 2s/sqrt(3) or you can rationalize the bottom and youd get 2sqrt(3)s/3
6 0
3 years ago
Read 2 more answers
(05.02) In the figure below, angle y and angle x form vertical angles. Angle x forms a straight line with the 50° angle and the
Irina18 [472]

<u>☁️</u><u>My Answer☁️:</u>

y = 90°

<u>✧My Step-by-step explanation✧:</u>

The angle x forms a straight line with the both the 50° angle and the 40° angle:

x + 50° + 40° = 180°

x = 90°

Which means…

y = x = 90°

3 0
3 years ago
Read 2 more answers
Round 1.965 to the nearest tenth.
Ne4ueva [31]

Answer: 2.0

Step-by-step explanation:

To round 1.965 to the nearest tenth consider the hundredths’ value of 1.965, which is 6 and equal or more than 5. Therefore, the tenths value of 1.965 increases by 1 to 0.

1.965 rounded to the nearest tenth = 2.0

3 0
3 years ago
PLEASE ANSWER ASAP! *PICTURE ATTACHED*
a_sh-v [17]

Answer:

Pls send the options so I can confirm the answer.

5 0
3 years ago
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