Solve the problem.An experimental model for a suspension bridge is built. In one section, cable runs from the top of one tower down to the roadway, just touching it there, and up again to the top of a second tower. The towers are both 4 inches tall and stand 40 inches apart. Find the vertical distance from the roadway to the cable at a point on the road 6 inches from the lowest point of the cable.
A. 0.56 in.
B. 0.36 in.
C. 1.44 in.
D. 0.16 in.
Answer: B
Mathematics
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Is the following statement true or false?21 > 20
A. True B. False
Mathematics
Find all the first order partial derivatives for the following function.f(x, y, z) = x2y + y2z + xz2
A. 
= 2xy; 
= x2 + 2yz; 
= y2 + 2xz
B. 
= 2y + z2; 
= x2 + 2z; 
= y2 + 2x
C. 
= 2xy + z2; 
= x2 + yz; 
= y2 + xz
D. 
= 2xy + z2; 
= x2 + 2yz; 
= y2 + 2xz
Mathematics
Select the functions that have identical graphs.(i) y = cos x(ii) y = - sin (x - ?)(iii) y = cos 
A. i, ii and iii B. i and iii C. ii and iii D. i and ii
Mathematics
Combine like terms. Write the answer in descending order.82.4x2 - 42.4x + 59.4 + 57.6x - 61.4x2 - 29.4
A. 21x2 + 15.2x + 30 B. 143.8x2 + 100x + 88.8 C. 21x2 + 100x + 88.8 D. 21x2 - 15.2x - 30
Mathematics