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Mathematics

1 answer:

Blizzard [7]3 years ago

5 0

Answer:

ARE you okey?

Step-by-step explanation:

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The mean mass of four women is 60 kg.

Eddi Din [679]

Okay so, 60 x 4 = 240

240 + 70 = 310

310 / 5 = Mean of 62

3 0

3 years ago

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Which is equivalent to 2 5/6 A. 5/3 B. 7/6 C. 17/6 D. 12/5

Dimas [21]

The answer would be C (17/6)
This is because;
6 goes into 17 twice leaving a reminder of 5.

8 0

3 years ago

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Consider the following problem: A box with an open top is to be constructed from a square piece of cardboard, 3 ft wide, by cutt

sattari [20]

Answer:

b: See first attached photo

c: V = x²y

d and e: V = x(3 - 2x)²

f: 2 cubic feet

Step-by-step explanation:

a: Sketch several boxes and calculate the volumes.

b: See first attached photo a diagram of this situation

The diagram is a square. We are cutting out squares from the corners. We don't know the size of the square yet. The side lengths were 3, but now they are 3 - 2x (since each corner has one side of the square, there are 2 sides of the cut out square on each side of the larger square)

c: The equation for volume is: V = x²y

The length and width of the box are the x values, the height would be the y value

d and e: It wants the equation for the volume for our situation. The base of the box is (3 - 2x)(3 - 2x) or (3 - 2x)². The height of the box is x, so the volume is

V = x(3 - 2x)²

f: Take the derivative, find the critical values, then plug that into x and solve for the volume. See second attached photo for the work for finding the x value that maximizes the box, and the third attached photo for the evaluation of the maximum volume...