Answer:
Therefore values of a and b are
Step-by-step explanation:
Rewrite 
in the form
where a and b are integers,
To Find:
a = ?
b = ?
Solution:
..............Given
Which can be written as
Adding half coefficient of X square on both the side we get
...................( 1 )
By identity we have (A - B)² =A² - 2AB + B²
Therefore,
Substituting in equation 1 we get
Which is in the form of
On comparing we get
a = 3 and b = 2
Therefore values of a and b are
Answer: 
Step-by-step explanation:
We know that the general form of the exponential decay formula is
, where y is final amount remaining after t time, A is the original amount and r is the rate of decay
Now, the ratio of strontium-90 remaining, p , as a function of years, t , since the nuclear accident. 
Hence, the ratio of remaining since the nuclear accident is
Answer:
Q.10) Answer is Option D.
Q.6) Answer is Option D .
<span>9/10 divided by 2/5
Convert the divided sign into multiplication while flipping the fraction 2/5 to 5/2
9/10*5/2
Multiply the numerator by the other numerator while multiplying the denominator by the other denominator.
45/20
Simplify
Final Answer: 2 1/4 or 45/20 *They 2 1/4 and 45/20 are the same value. Just written in different ways.</span>
31 = -4v - 5
31 (+5) = -4v -5 (+5)
36 = -4v
36/(-4) = -4v/(-4)
36/ -4 = v
v = -9 is your answer
hope this helps
