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tatuchka [14]
3 years ago
9

Suppose there is a 1.8*F drop

Mathematics
2 answers:
kiruha [24]3 years ago
6 0
You didn’t complete it all.
Anni [7]3 years ago
5 0

Answer:

That -16*C Celsius

Step-by-step explanation:

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An open box is to be made out of a 12-inch by 20-inch piece of cardboard by cutting out squares of equal size from the four corn
Natali5045456 [20]

Answer:

Length = 15.14, width = 7.14 and height = 2.43  inches.

( correct to the nearest hundredth).

Step-by-step explanation:

Let the lengths of the squares cut out be x inches.

Then the width of the box will be 12 - 2x and the length will be

20 - 2x inches.

The height of the box is x inches.

Volume V = x(20-2x)(12-2x)

To find the value of x when V is a maximum we find the derivative and equate it to zero.

V = x( 240 - 64x + 4x^2)

V = 4x^3 - 64x^2 + 240x

dV/dx = 12x^2 - 128x + 240 = 0

4(3x^2 - 32x + 60) = 0

This won't factor so we use the formula:

x = [-(-32) +/- √((-32)^2 - 4*3*60)] / 6

= 8.24, 2.43.

So one of these gives a maximum Volume.

The second derivative

d^2V/dx^2 = 24x - 128

When x = 8.24,  this = 69.6 (positive) so this gives a minimum.

x = 2.43 gives a negative  value ( -49.7)  so this is the maximum

So the dimensions are:-

length = 20 - 2(2.43) = 15.14

width = 12 - 2(2.43) = 7.14

height = 2.43.

7 0
2 years ago
12 pleaseeee and thanksss
Svetlanka [38]

Answer:

Step-by-step explanation:

0.5-8y= 72

7 0
3 years ago
Write 631.8 as a mixed number.​
docker41 [41]

Answer:

631 4/5

Step-by-step explanation:

5 0
2 years ago
Am i right or wrong please inform me
Lemur [1.5K]

Answer:

you're seeing

Step-by-step explanation:

the answer is

-n ≤ 3

8 0
3 years ago
What is the notation for z-3=2
givi [52]
Add 3 to both sides and you're left       z = 2+3
therefore                                                 z = 5

6 0
3 years ago
Read 2 more answers
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