Solve the equation by finding an expression for the determinant on the left, and then solving using the appropriate method.
= -9
A. {-9}
B. {2}
C. ?
D. {7}
Answer: B
Mathematics
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Find 
.y = 2
A. 
B. 
C. 
D. 
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Graph the function.f(x) = 
x + 4
A. 
B. 
C. 
D. 
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Solve the problem.The number of bacteria growing in an incubation culture increases with time according to 
where x is time in days. Find the number of bacteria when x = 0 and x = 3.
A. 8700, 34,800 B. 8700, 52,200 C. 17,400, 69,600 D. 8700, 69,600
Mathematics
Solve the problem.The total solar radiation H (in W/m2) on a certain surface during an average clear day is given by H = 
(-6 < t < 6),where t is the number of hours from noon. Find the derivative of H with respect to t.
A. 
= - 
B. 
= - 
C. 
= 
D. 
= - 
Mathematics