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Genrish500 [490]

1 year ago

14

A radioactive compound with mass 470 grams decays at a rate of 3% per hour. Which

1 answer:

xxTIMURxx [149]1 year ago

3 0

After 6 hours the radioactive compound with mass 470 grams becomes 391.49 grams and the equation will be C is equal to 470(1-0.03)^6.

<h3>What is exponential decay?</h3>

During exponential decay, a quantity falls slowly at first before rapidly decreasing. The exponential decay formula is used to calculate population decline and can also be used to calculate half-life.

We know the decay can be as:

$\rm C = a(1-r)^t$

We have:

a = 470 grams

r = 3% = 0.03

t = 6 hours

$\rm C = 470(1-0.03)^6$

C = 391.49 grams

Thus, after 6 hours the radioactive compound with mass 470 grams becomes 391.49 grams and the equation will be C is equal to 470(1-0.03)^6.

Learn more about the exponential decay here:

brainly.com/question/14355665

#SPJ1

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Can someone show step by step to get the answers please

Elden [556K]

Answer:

i have made it in above picture

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6 0

3 years ago

I have no clue i came up with 0.6 but that's wrong according to them :[

NISA [10]

Answer:

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Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

20. (01.03 MC)<br> What is the simplified expression<br> ? (1 point)

ahrayia [7]

Answer:

$\displaystyle 3^2$

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

<u>Algebra I</u>

Exponential Rule [Multiplying]: $\displaystyle b^m \cdot b^n = b^{m + n}$
Exponential Rule [Dividing]: $\displaystyle \frac{b^m}{b^n} = b^{m - n}$

Step-by-step explanation:

<u>Step 1: Define</u>

<u /> $\displaystyle \frac{3^3 \cdot 3^3}{3^4}$ <u />

<u />

<u>Step 2: Simplify</u>

[ER] Multiply: $\displaystyle \frac{3^{3+3}}{3^4}$
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4 0

3 years ago

How to do it and answer

FinnZ [79.3K]

Answer:

(0,0)

Step-by-step explanation:

Let's put this in standard form in our minds.

Standard form of a circle is (x-h)^2 + (y-k)^2 = r^2.

(h,k) is the center, and r is the radius.

x^2 + y^2 = 121

(x-0)^2 + (y-0)^2 = 121

We can just think about this like they have a secret 0 as the h and k! The center is just (0,0). Good luck in your math class:)

8 0

3 years ago

If your first first oil changes 5000 miles and then every three hundred three thousand miles after if you drive your car 250 mil

LenKa [72]

Answer:

4 oil changes

Step-by-step explanation:

Given that:

Distance after first oil change = 5000 miles

Subsequent oil changes = 3300 miles

If distance in miles moved per week = 250 m

Number of weeks per year = 52

Total miles moved per year = (250 * 52) = 13000 miles

Let Number of oil change per year = n

Difference between successive oil change = d = 3300 miles

Using the relation :

Total miles = Ist change + (n - 1)d

13000 = 5000 + (n - 1)3300

13000 = 5000 + 3300n - 3300

13000 = 1700 + 3300n

13000 - 1700 = 3300n

11300 = 3300n

n = 3.424

Hence, number of oil. Changes in first year = 4

4 0

2 years ago