Compute the determinant of the matrix by cofactor expansion.
A. -60
B. -240
C. 120
D. -120
Answer: B
Mathematics
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Find the indicated sum.8, -24, 72, -216, 648, . . . ; S14
A. -9,565,936 B. -9,565,942 C. -9,565,938 D. -9,565,929
Mathematics
Provide an appropriate response.Find the area of a circle whose radius is 3 ft 8 in. (round to the nearest hundredth of an inch).
What will be an ideal response?
Mathematics
Solve. Round to the nearest hundredth when necessary.On a road trip, Jackie and Meredith drove 304 miles through the United States and 185 kilometers through Canada. How many kilometers did they travel in total?
A. 418.7 km B. 674.44 km C. 604.14 km D. 489 km
Mathematics
Add or subtract as indicated. Write the answer in simplest form.
+ 
A. 
B. 
C. 
D. 
Mathematics