Add or subtract as indicated.48 - 67.48
A. -19.98
B. -115.48
C. -19.48
D. -19.58
Answer: C
Mathematics
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Solve the equation. If there are no real solutions, write "no real-number solutions."r2 = -9
A. 3
B. ±3
C. 
D. no real-number solutions
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Given matrices A and B, find the indicated matrix if possible.A = 
, B = 
Find AB.
A. 
B. 
C. 
D. 
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Complete the identity.sin (tan-1 v) = ?
A. 
B. 
C. 
D. v
Mathematics
Write and solve an equation to find the percent increase or decrease. Round your answer to the nearest tenth of a percent, if necessary.A garden has vegetables planted in a 38-ft by 23-ft area. The vegetables are surrounded by a 
border of flowers. By what percent is the area for planting vegetables increased if the 
border of flowers is removed?
A. 11.5% B. 15.5% C. 12.6% D. 14.4%
Mathematics