Factor the polynomial by grouping.x2 + 3x + 5x + 15
A. (x - 3)(x + 5)
B. (x + 3)(x + 5)
C. (x - 3)(x - 5)
D. prime
Answer: B
Mathematics
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Use L'H
pital's rule to find the limit.
A. 0
B. - 
C. 
D. 
Mathematics
Solve the problem.A charged particle of mass m and charge q moving in an electric field E has an acceleration a given by 
where q and E are constants. Find 
.
A. 
= 
B. 
= - 
C. 
= 
D. 
= 
Mathematics
Find the integral  Figure 3.png)
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Mathematics
Solve the problem.The half-life of a certain radioactive substance is 22 years. Suppose that at time t = 0 , there are 21 g of the substance. Then after t years, the number of grams of the substance remaining will be 
How many grams of the substance will remain after 242 years? Round to the nearest hundredth when necessary.
A. 0.23 g B. 0.06 g C. 0.46 g D. 0.12 g
Mathematics