Perform the indicated operation. Simplify if possible.
+ 
A. 
B. 
C. 
D. 
Answer: B
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Use a graphing calculator and the method of matrix inverses to solve the system. Give five decimal places, if necessary.x - 
y = 3.72.85x + y = -8.23
A. {(2.61630, -2.88772)} B. {(0, 0)} C. {(3.43297, 0.18882)} D. {(-1.57817,-3.73223)}
Establish the identity.sec(2?)= 
What will be an ideal response?
The host of a TV infomercial says that the suggested retail price of a rotisserie grill is $40.00 and that it is now offered "for just 4 easy payments of only $6.30." What is the discount rate?__________ %
Fill in the blank(s) with the appropriate word(s).
Complete the table for the radioactive isotope.
Isotope
Half-life(years)
Initial Quantity
Amount after 1000 years
24,100
---- 
A. Initial Quantity: 
B. Initial Quantity: 
C. Initial Quantity: 
D. Initial Quantity: 
E. Initial Quantity: 