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user100 [1]
3 years ago
11

What is the best expression for 7/8 and 8 1/10

Mathematics
1 answer:
katrin2010 [14]3 years ago
4 0

7/8 is nearly 1, and 8 1/10 is obviously 8.1 (1/10), which is rounded to 8. So th expression that best estimates the products of those numbers is D, 1 * 8.


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A hot bowl of soup cools according to Newtons law of cooling. Its temperature (in degrees Fahrenheit) at time t is given by T(t)
nata0808 [166]
212°F
147°F
23.2 min

1) Initial temperature for t=0
T(0)=68+144e^(0)=68+144=212°F
2) After 15 min
T(15)=68+144e^(-0.04*15)=68+144e^(-0.6)=147°F
3) 125°F -> t=?
125=68+144e^(-0.04t)
144e^(-0.04t)=125-68=57
e^(-0.04t)=57/144=0.4 you can apply ln on both sides:
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4 0
2 years ago
which of the following best describes the English expression five more than the quantity of a number minus six?
agasfer [191]
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5 0
3 years ago
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For a certain data set the regression equation is y = 2 + 3x. The correlation coefficient between y and x in this data set _____
lozanna [386]

Answer:

C. Must be 1

Step-by-step explanation:

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It lies between -1 to 1,

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If there is no relation then the value of correlation is 0,

If there is strongly negative relation then the value of correlation coefficient is -1,

Here, the equation is,

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7 0
3 years ago
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stira [4]

Answer:

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Step-by-step explanation:

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Hope it helps :)

6 0
3 years ago
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Bogdan [553]

Answer:

  square; perimeter 20 units; area 25 square units.

Step-by-step explanation:

As the attachment shows, each side of the polygon is the hypotenuse of a 3-4-5 right triangle, so has length 5 units. The perimeter is the sum of those lengths, 4×5 = 20; the area is the product of the lengths of adjacent sides, 5×5 = 25.

The figure is a square of side length 5 units.

The perimeter is 20 units; the area is 25 square units.

4 0
3 years ago
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