1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
omeli [17]
3 years ago
14

A particle decays at a rate of 0.45% annually. assume and initial amount of 300 mg. (

Mathematics
1 answer:
raketka [301]3 years ago
6 0
The increase is an exponential increase in a multiplier
100%+0.45%=100.45% and as decimal 1.0045

Final Value = Initial Value × multiplier^{number of years}
Final value = 300(1.0045)^{60}
Final value = 393 mg (to the nearest whole number)

Half life = 0.5 years
Final value = 300(1.0045)^{0.5}=301 mg
You might be interested in
Step-by-step square root of 79
alex41 [277]

Answer:

79 does not have a defined square root.

4 0
3 years ago
Click and drag like terms onto each other to simplify fully. 1+x^2-3+2y+7x^2+3+3y
Rashid [163]

Answer:

8x^2 + 5y + 1

Step-by-step explanation:

1 + x^2 - 3 + 2y + 7x^2 + 3 + 3y

group like terms

= x^2 + 7x^2 + 2y + 3y + 1 - 3 + 3

add similar items

= 8x^2 + 2y + 3y + 1 - 3 + 3

add similar items

= 8x^2 + 5y + 1 - 3 + 3

= 8x^2 + 5y + 1

6 0
3 years ago
Read 2 more answers
Anyone wanna help me?
spayn [35]
Similarities: same atomic number
Differences: they have a different number of neutrons
8 0
3 years ago
Read 2 more answers
****Brainliest to best answer!!***<br> Thank u to everyone who helps!
Dmitrij [34]

Answer:

A

Step-by-step explanation:

When you read the question it says that her average speed from the library to the gym is 15 mph less than her speed from her home to the library. So x - 15 is what describes that situation.

If it is A it cannot be anything else.

B is incorrect. x - 15 is not a time. It is a rate. It can be used to develop the amount of time, but by itself it is still A.

C is incorrect. Her average speed from her house to the library is x

D is incorrect. The distance is given as the same as from her home to the library as  from the library to the gym. Both are 4

7 0
3 years ago
A taxi driver wrote a formula to represent the mileage and fee for his last customer. He wrote the equation 3.00 + 0.50 m = 9.50
Vsevolod [243]

Answer: The sum of three dollars and the product of 50 cents times the number of miles is nine dollars and fifty cents.

Three dollars plus $0.50 times the number of miles is equal to nine dollars and fifty cents.

Step-by-step explanation:

Hi, to answer this question we have to analyze the equation given:

3.00 + 0.50 m = 9.50

Where m is the number of miles.

The equation states that the fixed fee charged (3.00) plus the product of the value of each mile traveled (0.50) and the number of miles traveled (m); is equal to 9.50.

So, the correct statements are:

  • The sum of three dollars and the product of 50 cents times the number of miles is nine dollars and fifty cents.
  • Three dollars plus $0.50 times the number of miles is equal to nine dollars and fifty cents.

Feel free to ask for more if needed or if you did not understand something.

7 0
3 years ago
Read 2 more answers
Other questions:
  • If I paid $47 for a dress and I got a discount of $7, how much was the price of the dress originally. I need to find out how to
    10·1 answer
  • The temperature of dry ice is -109.7 degrees fahrenheit. This is 184.7 degrees fahrenheit less than the outside temperature. Wri
    10·2 answers
  • What’s the answer to 0.462 / 0.2
    5·2 answers
  • Order 34 x 10^2, 1.2 x 10^7, 8.11 x 10^-3, and 435 from least to greatest.
    9·1 answer
  • If I said that in three days' time it would be a Thursday, I am sure that most of you would have no difficulty telling me that t
    5·1 answer
  • Can someone please explain and answer. There is only 1 question. There is a picture. Thank you
    8·1 answer
  • It says to calculate the area of the sector and t round to the nearest hundredth and to use 3.14 for Pi
    13·1 answer
  • How to express the first one in distributive property and the second one to write the ratio of pretzels to bread chips?
    9·1 answer
  • Is a ratio always a rate?
    14·2 answers
  • What is the point-slope form of 4x + 8y = 5?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!