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3 years ago

The quantity of an element is decaying over time such that the amount of material at

Mathematics

1 answer:

Reptile [31]3 years ago

7 0

Answer:

S(t) = 1000(0.729)^t

Step-by-step explanation:

S(t) = 1000(0.9)^(3t)

S(t) = 1000((.09)^(3))^t

S(t) = 1000(0.729)^t

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A square has an area of 121 square centimetres.<br> What is its perimeter?

Karolina [17]

Answer:

44 cm

Step-by-step explanation:

The area of a square is the square of the side length. This means the side length is the square root of the area.

s = √A = √(121 cm²) = 11 cm

The perimeter of a square is the sum of its side lengths. There are 4 equal-length sides, so the perimeter is 4 times the length of one side:

P = 4s = 4(11 cm)

P = 44 cm

The perimeter of the square is 44 cm.

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2 years ago

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vfiekz [6]

To raise a function up by k units, add k to the whole function
f(x) is 2 units lower than g(x)
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3 years ago

Which is the graph of f(x)=5(2)^x

Inessa05 [86]

X: -2| -1| 0| 1| 2|
y: 1.25| 2.5| 5| 10| 20|

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3 years ago

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A money bank has twice as many nickels as dimes. There is exactly $2.00 in the bank. How many nickels are there?

Makovka662 [10]

There is 16 nickels in 2 dollars

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3 years ago

Suppose you invested $1500 in an ac count that paid an annual of 3% compound monthly. How much would you have after 1 year?

Sati [7]

Answer:

1545.62

Step-by-step explanation:

The calculation of compound interests uses this formula:

Where A = total amount, P = principal or amount of money deposited, r = annual interest rate, n = number of times compounded per year and t = time in years.

So, if we plug-in the numbers of the problem we have:

Which gives us:

$A = 1500 * 1.0025^{12} = 1500 * 1.030416 = 1545.62$

For a grand total of 1,545.62 including capital and interests.

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3 years ago