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2 years ago

12

a rare isotope of a nuclear material is very unstable, decaying at a rate of 14% each second. Find how much isotope remains 13 s

econds after 7 grams of the isotope is created. The mass of the remaining isotope is approximately _ g

1 answer:

Anna35 [415]2 years ago

8 0

I think you divide 14 by 7

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I need help on this what is RS

lana [24]

Answer:

11

Step-by-step explanation:

If RS=TV

5x-9=2x+3

5x-2x=3+9

3x=12

x=4

RS is 5x-9

5(4)-9

20-9

11

6 0

2 years ago

The table shows the relationship between the two variables. Which selection describes the relationship?

kobusy [5.1K]

Answer:

D.

Step-by-step explanation:

It's not linear but it is decreasing.

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2 years ago

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The Cheer Club is making a banner for your school using the design shown. The area of the yellow portion is 1 ft2. The expressio

olga nikolaevna [1]

Answer:

$Blue = \frac{8}{9}$

Step-by-step explanation:

Given

$Yellow = 1ft^2$

$Blue = 8z^{-1$

Required

Evaluate Blue when z = 9

To do this, we simply substitute 9 for z in $Blue = 8z^{-1$

$Blue = 8 * 9^{-1$

Convert indices to fraction

$Blue = 8 * \frac{1}{9}$

$Blue = \frac{8}{9}$

<em>Hence, the blue section has an area of </em> $\frac{8}{9}ft^2$ <em></em>

3 0

2 years ago

-2(x - 4) = -8 solve

lilavasa [31]

X = 8

hope it helps : )

3 0

3 years ago

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There are about 45000 farms in Nebraska using approximately 45 million acres of land. This farmland covers about 9/10 of the sta

yulyashka [42]

9/10 : 1/10 = 45,000,000 : x

x = 45000000/9 = 5,000,000

Answer: 5 million acres

6 0

2 years ago