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mafiozo [28]
2 years ago
6

Element X is a radioactive isotope such that every 14 years, its mass decreases by half.

Mathematics
1 answer:
DanielleElmas [232]2 years ago
4 0
Element X is a radioactive isotope such that every 14 years, its mass decreases by half.
Given that the initial mass of a sample of Element X is 80 grams, how much of the
element
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Amy took 4 science quizzes. On her first Quiz, she got 21 out of 25 of the Quiz correctly. On the second quiz, she answered 25 o
pav-90 [236]

Answer:

  1. 25 out of 27 : she missed 2 points
  2. 92%
  3. 88%
  4. 21 POUT OF 25

HOPE THIS HELPS!

6 0
2 years ago
Read 2 more answers
Find any restrictions on x
olchik [2.2K]
The denominator of any fraction cannot be equal to zero. This is because if the denominator is equal to zero, the, the fraction itself would be "undefined".

Applying this to the above mentioned problem, we will find two denominators including the term "x". These two denominators cannot be equal to zero.

First fraction:
1/x ..................> x cannot be equal to zero

Second fraction:
1/(x^2 - 3x -4) = 1/(x - 4)(x + 1)
The denomination will be equal to zero if x = 4 or x = -1
........> x cannot be equal to 4 or -1

Based on this, the restrictions on x are as follows:
x cannot be equal to 0,4 or -1
6 0
3 years ago
Help me solve the following 5(2x+7)=
stiv31 [10]

5*2x=10x

5*7=35

the answer is 10x+35

3 0
3 years ago
Match each scenario with the tax it is describing by putting the correct number next t
Anna [14]

Answer:

1) Yvonne buys gloves that cost $10.00. At the register, she must pay  $10.80. ⇒ EXCISE TAX  

2)Sasha bought a house last year. She just got a tax bill from the  county showing the value of her house and the amount of tax. ⇒ PROPERTY  TAX  

3) Bigmart sells boots made in China and boots made in the U.S.  Bigmart must pay 27% tax on each pair of boots made in China, but  not on the U.S. made boots. ⇒ TARRIFF.  

4)State citizens voted to add a 75-cent tax to each pack of cigarettes  to pay for programs to help people quit smoking. ⇒ SALES TAX  

5)Jake got his paycheck today. He worked 40 hours at $20 per hour  His gross pay was $800, but the amount of his paycheck was only. ⇒ Income/Social /Security/Medicare  Taxes

8 0
3 years ago
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What is the distributive property in -6 (x - 6)-
LenaWriter [7]

Answer:

-6x+36

Step-by-step explanation:

-6 (x - 6)

Distribute

-6x -6 (-6)

-6x+36

8 0
2 years ago
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