100 POINTS ANSWER FAST
2 answers:
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ANSWER
The algebraic expression that is a polynomial with a degree of 2 is
EXPLANATION
The degree of a term of a polynomial is the total sum of the exponents of the variables in each term.
The highest degree of the polynomial is considered the degree of the polynomial.
For first option,
the highest degree is 3.
The second option is,
This polynomial also has a degree of 3.
The third option is,
This last option has a degree of 2.
Therefore the correct answer is option C.
The algebraic expression that is a polynomial with a degree of 2 is
EXPLANATION
The degree of a term of a polynomial is the total sum of the exponents of the variables in each term.
The highest degree of the polynomial is considered the degree of the polynomial.
For first option,
the highest degree is 3.
The second option is,
This polynomial also has a degree of 3.
The third option is,
This last option has a degree of 2.
Therefore the correct answer is option C.
Staals half
1 gram left
0.3 grams left
half lives are normally written in years
it goes likt this
A=final amount
P=initila amount
t=time elapsed
h=time half life is (same units as time)
let's use days as the units of time
we are given
initial amount=1gram
final amount=0.3gram
time=4 days
so
solve for h
take the ln of both sides
times both sides by h
divide both sides by ln(0.3)
use calculator
h=2.30287
3 sig figs
h=2.303 days
1 gram left
0.3 grams left
half lives are normally written in years
it goes likt this
A=final amount
P=initila amount
t=time elapsed
h=time half life is (same units as time)
let's use days as the units of time
we are given
initial amount=1gram
final amount=0.3gram
time=4 days
so
solve for h
take the ln of both sides
times both sides by h
divide both sides by ln(0.3)
use calculator
h=2.30287
3 sig figs
h=2.303 days