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zhannawk [14.2K]
2 years ago
6

Need help with math probelm if do 5 stars

Mathematics
2 answers:
Ronch [10]2 years ago
5 0

Answer: Choice B

Step-by-step explanation: The answer selected in the images is the correct answer because. It is \frac{4}{10} of the way from 0.2 to 0.3

kumpel [21]2 years ago
4 0

Answer:

B

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
Jessica drank 1/8 gallon of orange juice
irakobra [83]
And what else you can not solve that problem
6 0
3 years ago
Describe how you regroup when you find the sum of 64+43
damaskus [11]
Here, regrouping is basically carrying. 

64+43 shown vertically would be:

  64
+43
-------
 107
4+3 is 7, so seven is in the ones place, but that's not the point.
60+40 is 100, so you regroup by carrying the one to the hundreds place.

Hope I helped!

5 0
3 years ago
30 points. Two hot air balloons are traveling along the same path away from a town, beginning from different locations at the sa
labwork [276]

Answer:

C. Tasha's balloon was farther from the town at the beginning, but

Henry's balloon traveled more quickly.

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
PLEASE HELP!!!
Nata [24]
S(t) = -4 - 2t

s'(t) = -2

s'(6) = -2

6 0
3 years ago
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