Find an approximate value for the integral, using the Parabolic Rule, with n intervals.
n = 2
A. 
B. 
C. 
D. 
Answer: A
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A water source is contaminated with a toxic chemical and is being cleaned. The amount of chemical, in grams, remaining t hours after the cleaning process began is given by
?
.
?
How much of the chemical is removed from time 
to time 
?
?
A. 361.43 grams
B. 4.17 grams
C. 24.34 grams
D. 19.99 grams
Solve.Using the chessboard parable, how many grains of wheat should be placed on square 6 of the chessboard?
A. 32 grains B. 64 grains C. 10 grains D. 16 grains
Provide an appropriate response.For the system 4x + 13y = 11 6x - 8y = 19,write the determinant Dx.(Do not evaluate the determinant.)
A.
det 
B.
det 
C.
det 
D.
det 
Solve the problem. Round to the nearest cent.If $400,000 is to be saved over 30 years, how much should be deposited annually if the investment earns 4.75% interest compounded annually?
A. $5241.82 B. $7597.78 C. $9287.47 D. $6283.78