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polet [3.4K]
3 years ago
8

Gold has a weight of 1,204 pounds per cubic foot. What is the weight of a gold brick which has a volume of 44.4 cubic inches? Ro

und to the nearest pound. One foot is the same as 12 inches.
Mathematics
1 answer:
Tatiana [17]3 years ago
5 0

Answer:

31 pounds

Step-by-step explanation:

i just did it

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Match each exponential function to the description of its percent rate of change. 22% growth 12% decay 2% decay 20% growth 20% d
makvit [3.9K]

The exponential function is defined as y = a(1+r)^x, where "a" represents the original account and "r" the rate of growth or decay.

Then we have the following:

1) 22% grow

y = a( 1 + 22%/100 )^x = a(1.22)^x

So the solution is: 124(1.22)^x

2) 12% decay

y = a( 1 - 12%/100 )^x = a(0.88)^x

So the solution is: y = f(x) = 44(0.88)^x

3) 20% decay

y = a( 1 - 20%/100 )^x = a(0.8)^x

So the solution is: f(x) = 22(0.8)

4) 12% Groth

y = a( 1 + 12%/100 )^x = a(1.12)^x

So the solution is: f(x) = 42(1.12)^x

4 0
3 years ago
A display of cans in a grocery store consists of 15 rows. There are 45 cans on the bottom , 42 cans on the next row, and so on,
Alchen [17]

Answer:

n = 9

Step-by-step explanation:

20 + 18 + ... + 6 + 4

---------------------------

a = 20 ; d = -2 ; n = ?

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4 = 20 + (n-1)(-2)

-16 = (n-1)(-2)

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n-1 = 8

n = 9

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S(9) = (9/2)(20+4)

S(9) = 4.5*24

S(9) = 108

8 0
3 years ago
What’s 2 x 21 whats the answer
swat32

Answer:

42

Step-by-step explanation:

5 0
2 years ago
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The image below shows two parallel lines cut by a transversal. What is the measure of angle 1?
Yuri [45]

180 - 78 = 102

< 1 = 102*

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3 years ago
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natali 33 [55]

Answer:

Calculated risks are risks that we can take even if we fail. Indeed, there are people willing to risk everything, and some even succeed, in doing so, but one has to see the overall picture in mind and only then make a decision

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