A trough is in the shape of a trapezoidal prism with the ends in the shape of isosceles trapezoids.The width across the top is 8', the width across the bottom is 5' and the length is 20'. What is the outside surface area of the trough if one of the base angles of the trapezoid is 107°?
369 sq. ft.
Mathematics
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Write as a subtraction problem and evaluate.The difference of -2xy and -2xy added to the difference of 5xy and -8xy
A. [5xy - (-8xy)] - [(-2xy + (-2xy)]; 17xy B. [(-2xy + (-2xy)] + [5xy - (-8xy)]; 9xy C. [(-2xy - (-2xy)] - [5xy - (-8xy)]; -13xy D. [5xy - (-8xy)] + [(-2xy - (-2xy)]; 13xy
Mathematics
Replace the polar equation with an equivalent Cartesian equation.r = 
A. 8y - 9x = 1
B. 
+ 
= 1
C. 
= 1
D. 8x - 9y = 1
Mathematics
Solve the equation by clearing the coefficient.12w = -156
A. w = -168 B. w = 13 C. w = -13 D. w = 12
Mathematics
Subtract.111 - 112
A. 1 B. -223 C. -1 D. 223
Mathematics