Use the order of operations to simplify the expression.23 - [ 9 - ( 5 - 7)] + ( 5 - 7 )3
A. 20
B. -20
C. 24
D. 4
Answer: D
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Find Dxy.y = sinh(4x2 + 4x)
A. cosh(4x2 + 4x) B. (8x + 4) cosh(4x2 + 4x) C. sinh (8x + 4) cosh(4x2 + 4x) D. cosh (8x + 4)
Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.sec ? = - 
, 
< ? < ?Find sin 
.
A. - 
B. - 
C. 
D. 
Solve the problem. Round rates to the nearest tenth of a percent and dollar amounts to the nearest dollar when necessary.A local dealer sells baseballs for $25.00 each. If this is a 12.9% markup on selling price, find the equivalent markup percent on cost.
A. 14.8% B. 85.2% C. 12.9% D. 11.4%
Solve graphically. Round solutions to three decimal places, where appropriate.6x + 1 = 5x2
A. 0.952, 2.448 B. -0.148, 1.348 C. -0.848, 0.648 D. 0.552, 2.048