Find the area.
A. 36 in2
B. 144 in2
C. 18 in2
D. 72 in2
Answer: D
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Find all the second order partial derivatives of the given function.f(x, y) = x2 + y - ex+y
A. 
= 2 - y2ex+y; 
= -x2ex+y; 
= 
= - y2ex+y
B. 
= 2 - ex+y; 
= - ex+y; 
= 
= -ex+y
C. 
= 1 - ex+y; 
= - ex+y; 
= 
= -ex+y
D. 
= 2 + ex+y; 
= ex+y; 
= 
= ex+y
Solve. Round to the nearest tenth.A rectangular plot of land is 89 meters by 99 meters. Find the length of the diagonal.
A. 43.4 m B. 135 m C. 133.1 m D. 188 m
Solve the problem.In 1985, in the town of Appleby, 22.8% of Hispanics were overweight, increasing by an average of 0.47% per year. In 1985, in the town of Appleby, 0.17% of whites were overweight, increasing by an average of 29.2% per year. Write a function that models the percentage, y, of Hispanics who are overweight x years after 1985. Write a function that models the percentage, y, of whites who are overweight x years after 1985.
A. Hispanics: y + 0.47x = 22.8 Whites: y + 29.2x = 0.17 B. Hispanics: y = 0.47x + 22.8 Whites: y = 29.2x + 0.17 C. Hispanics: y = 22.8x + 0.47 Whites: y = 0.17x + 29.2 D. Hispanics: y = 23.27x Whites: y = 29.37x
Solve.A coil of wire rotating in a magnetic field induces a voltage given by 
where t is time in seconds. Find the smallest positive time to produce a voltage of 10
.
A. 3.33? sec B. 3 sec C. 3? sec D. 3.33 sec