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rodikova [14]
3 years ago
8

Brainliest right now!!!!

Mathematics
1 answer:
svlad2 [7]3 years ago
7 0
<h3>Answer:</h3>
  1. A
  2. B
<h3>Step-by-step explanation:</h3>

1. A decrease of 3.8% is equivalent to a multiplier fraction of -0.038. The only answer choice that has such a multiplier is A.

In an instance such as this, the "rate" is usually some (fractional) change in some period of time. Since the exponent must be unitless, the rate is effectively (some fraction) "per year" so that multiplying by "t" years cancels the units and results in a pure number.

___

<em>Comment on the exponential</em>

If the actual change were -3.8% per year, the exponential term would look like (1 - 0.038)^t = 0.962^t. By writing it as e^(-0.038t), the decrease is effectively compounded continuously. As a result, over a year's time, the decrease is actually about 3.73%, not 3.8%.

_____

2. If ║x/2║ is a magnitude function, answer choices B and D are equivalent. Thus, we must assume it is a "greatest integer" function. Then the number of desserts prepared will be ║x/2║, and the corresponding revenue will be 1.2║x/2║. Since x is in minutes, 2 to 4 hours will be 120–240 minutes. The appropriate choice is B.

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30303

Step-by-step explanation:

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7 0
3 years ago
A pizza is cut into twelve pieces. Describe the steps you would take to find the area of one slice of the pizza.
DanielleElmas [232]
Hey there!

First, you would need to find the area of the circle/pizza . . .

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---
Once you have found the area, you would need to divide the result by the number 12 since there is a total of 12 slices in the pizza.
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This is how you would find the area of one slice of pizza.
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I hope this helps you.
Have a great day! :)
5 0
3 years ago
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marta [7]

Answer:

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Step-by-step explanation:

I think option no a is answer

6 0
3 years ago
What is the greatest common factor of the two expressions?<br> 7a^2<br> 8a^3b^2
Andreyy89

Answer:

a²

Step-by-step explanation:

(see attached for reference)

We can find GCF by expressing each expression into their prime factors

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by observation, we can see that a x a or a² shows up in both expressions, highlighted in bold here:

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6 0
3 years ago
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iragen [17]

Answer:

Step-by-step explanation:

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8 0
3 years ago
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