Ask question

Ask question

All categories

2 years ago

10

Element X is a radioactive isotope such that every 25 years, its mass decreases by half. Given that the initial mass of a sample

of Element X is 50 grams, how much of the element would remain after 23 years, to the nearest whole number?

1 answer:

Julli [10]2 years ago

7 0

50*(.5)^(23/25)=26.43

You might be interested in

If the value of b is 7, then what is the value of the expression -3b2 + 25 = ?

jenyasd209 [6]

I got -17, so if you are answering in absolute values then C.17 is correct

3 0

2 years ago

20 points , Please help !!

Fudgin [204]

Answer:

y = -1/4*x + b

Insert the Point and solve for b

3 = -1/4*8 + b

3 = -2 + b

5 = b

Answer A is correct.

5 0

3 years ago

Read 2 more answers

Determine the domain on which the following graph of f(x) is negative.

AURORKA [14]

Answer: The domain is [0, 4] when the graph is negative.

4 0

2 years ago

Omar tried to solve an equation step by step. \qquad\begin{aligned} 3x&=4.5\\\\ \\ \dfrac{3x}3&=\dfrac{4.5}3&\green{

Alona [7]

Answer:

Omar did no make a mistake.

Step-by-step explanation:

The given equation is

$3x&=4.5$

We need to find the Omar's mistake.

Correct steps to solve the given equation are

Step 1: Divide both sides by 3.

$\dfrac{3x}{3}=\dfrac{4.5}{3}$

Step 2: Simplification.

$x=1.5$

Therefore, Omar did no make a mistake.

3 0

3 years ago

Read 2 more answers

Multiply (5 × 10^4)(7 × 10^3), express in scientific notation.

Leto [7]

Answer:

350,000,000

Step-by-step explanation:

(50,000)(7,000)

350,000,000

Hope this helps you.

7 0

3 years ago

Read 2 more answers