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tankabanditka [31]
3 years ago
9

Read the following scenario, and then answer the question.

Mathematics
1 answer:
blsea [12.9K]3 years ago
6 0

9514 1404 393

Answer:

  (b)  He is correct. The tea will cool exponentially since it cools at a percentage rate every minute.

Step-by-step explanation:

Newton's Law of Cooling says the change in temperature is proportional to the temperature. This relation gives rise to an exponential function describing the temperature.

In this description, the temperature referred to is the <em>difference</em> between the temperature of the object and the temperature of the environment to/from which heat is being transferred.

Juan is only partially correct. The function is exponential, but the temperature that should be used in his equation is not the temperature of the tea, but the temperature difference between the tea and his desk.

__

The curve is not linear and not parabolic, excluding the other answer choices.

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9a/5b is the answer, the (-7) cancel out.
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How can we determine the difference between a pyramid and a prism? See attached
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So 2 and 4

Step-by-step explanation:

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Evaluate the polynomial 3x – 2y + 4 if x = -2, y = -4.
AysviL [449]

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7 0
3 years ago
Find the area of the circle to the nearest hundredth with r=4cm. d=18in.<br>​
Annette [7]

Answer:

  • 1.

r = 4 cm

A(circle) = π·r²

= π·(4cm)²

= 3.14·16cm²

= 50.24 cm²

  • 2.

d = 18 in

d = 2r => r = d/2 = 18in/2 = 9 in

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= 3.14·(9in)²

= 3.14·81in²

= 254.34 in²

5 0
4 years ago
PLEASE ANSWER + BRAINLIEST!!!!
Maslowich

Answer: aₙ = [d-(d-n)]*10

where n is the number of questions answered correctly and d is the total amount of questions.

Step-by-step explanation:

By understanding the question we can tell than she will be rewarded for each corrct answer. so, how many wrong answers she/he can have?

d-n= Total number of wrong answers

d- (d-n) = Total number of correct answers

price: 10 for each correct answer, so:

price: [d-(d-n)]*10

Therefore:

aₙ = [d-(d-n)]*10

5 0
3 years ago
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