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OleMash [197]
3 years ago
5

One of the by products of nuclear power generation is uranium 233 uranium is taking out a constant 30% rate per day if 12,880 po

unds are produced from power plantLooks what will the amount be in 20 days
Mathematics
1 answer:
aleksandr82 [10.1K]3 years ago
5 0
For this case we have a function of the form:
 y = A * (b) ^ x

 Where,
 A: it is the initial amount
 b: is the growth rate
 x: it's time
 Substituting values we have:
 y = 12880 * (1.30) ^ x

 For 20 days we have:
 y = 12880 * (1.30) ^ {20}  y = 2447839
 Answer:
 
the amount will be 2447839 pounds in 20 days
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supposed f(x)=2x-6 . write the equation for g(x) if g(c)=f(x)+3 . how did the transformation shift the graph of f(c) ?
umka21 [38]

Answer:

g(c)=2x-3

Step-by-step explanation:

given f(x)=2x-6 put the value of f(x) in g(x)

g(x)=f(x)+3=2x-6+3

g(x)=2x-3

5 0
3 years ago
HJ = 18 and MN = 28. Solve for LK
Brut [27]

Answer:

LK = 38

Step-by-step explanation:

MN is the midsegment, and the midsegment is the average length of the top and bottom, so:

\frac{18 + LK}{2} =28

solve for LK:

18+LK=56\\\\LK=38

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3 years ago
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8 0
4 years ago
Po The diameter of a circular fountain in a city park is 28 feet. A sidewalk that is 3.5 feet will be built around the fountain.
jarptica [38.1K]

Answer:

Area of sidewalk = 346.5 ft^2

Bags of concrete = 277

Step-by-step explanation:

The diameter of the circular fountain is 28 ft. Radius = 28 / 2 = 14 ft

The thickness of the sidewalk is 3.5 ft. This means they want to add 3.5 ft to each radius of the fountain.

To find the area of the sidewalk alone, we have to find the area of the sidewalk alone and then subtract it from the area of the sidewalk and fountain.

That is:

A_s = A_{s+f} - A_f

The fountain is circular and its radius is 14 ft. Hence, its area will be:

A_f = \pi r^2

A_f = \pi *14^2 = 616 ft^2

The sidewalk and fountain together also form a circular shape. Their joint radius will be:

R = 14 + 3.5 = 17.5 ft

Hence, the area will be:

A_{s + f} = \pi R^2 \\A_{s + f} = \pi * 17.5 * 17.5 = 962.5 ft^2

Hence, the area of the sidewalk alone will be:

A_s = 962.5 - 616 = 346.5 ft^2

This is the area of the sidewalk.

For every square foot (ft^2), 0.8 bag of concrete will be used. This means that for 346.5 ft^2:

Bags of concrete = 0.8 * 346.5 = 277.2 ≅ 277

At least 277 bags of concrete will be used for the new sidewalk.

5 0
4 years ago
Its math help me out?
Hoochie [10]

Its the first one

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7 0
2 years ago
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