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AfilCa [17]
3 years ago
8

Which expression is equivalent to -4.5 - 6.2y

Mathematics
2 answers:
olga2289 [7]3 years ago
4 0

Answer:

A

Step-by-step explanation:

THE ANSWER IS 1 PLEASE MARK ME AS BRAINLYLIST

schepotkina [342]3 years ago
4 0

Answer:

A

Step-by-step explanation:

I just got it correct on the test on ed-genuity. (would not let me put the word together lol)

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Air pressure may be represented as a function of height (in meters) above the
denis-greek [22]

Answer: OPTION C.

Step-by-step explanation:

<h3> The complete exercise is: "Air pressure may be represented as a function of height (in meters) above the surface of the Earth, as shown below:</h3><h3>  P(h) =P_0e^{-0.00012h} </h3><h3> In this function P_o   is the air pressure at the surface of the earth, and h is the height above the surface of the Earth, measured in meters. At what height will the air pressure equal 50% of the air pressure at the surface of the Earth"</h3><h3></h3>

Given the following function:

P(h) =P_0e^{-0.00012h}

In order to calculate at what  height the air pressure will be equal 50% of the air pressure at the surface of the Earth, you can follow these steps:

1. You need to substitute P(h)=0.5P_o into the function:

0.5P_o=P_0e^{-0.00012h}

2. Finally, you must solve for h.

Remember the following property of logarithms:

ln(b)^a=a*ln(b)\\\\ln(e)=1

Then, you get this result:

0.5P_o=\frac{P_o}{e^{0.00012h}}\\\\(0.5P_o)(e^{0.00012h})=P_o\\\\e^{0.00012h}=\frac{P_o}{0.5P_o}\\\\ln(e)^{0.00012h}=ln(2)\\\\0.00012h*1=ln(2)\\\\h=\frac{ln(2)}{0.00012}\\\\h=5576.2

7 0
4 years ago
A restaurant buys a freezer on the shape of a of a rectangular prism.the dimensions of the freezer are shown. What is the volume
pickupchik [31]
66555 is the volume of the refrigerator
8 0
3 years ago
An equilateral triangle has a perimeter of 42. What is it's height?
katrin2010 [14]

Answer:

Given that: The perimeter of the equilateral triangle is 42 inches. Side of the triangle=Perimeter/3=42/3=14 inches. The height of the triangle is 12 inches

Step-by-step explanation:

12 inches hope it helps

3 0
3 years ago
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Please help!!!!!!!!!
dem82 [27]

Answer:

She bought 8 books

Step-by-step explanation:

8.96/1.12

4 0
4 years ago
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in my piggy bank 70% of the coins were dimes. your piggy bank has three times as many coins as mine, and 75% of them were dimes.
kenny6666 [7]
75%
Hope this helped
5 0
3 years ago
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