If A denotes the area of the sector of a circle of radius r formed by the central angle ?, find the missing quantity. If necessary, round the answer to two decimal places.r = 10.3 feet, ? = 10.769°, A = ?
A. 19.94 ft2
B. 22.94 ft2
C. 12.97 ft2
D. 9.97 ft2
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. 
= 1 - ex+y; 
= - ex+y; 
= 
= -ex+y
B. 
= 2 - ex+y; 
= - ex+y; 
= 
= -ex+y
C. 
= 2 + ex+y; 
= ex+y; 
= 
= ex+y
D. 
= 2 - y2ex+y; 
= -x2ex+y; 
= 
= - y2ex+y
Identify the base and the exponent for the exponential expression.-32
A. Base is -3; exponent is 2. B. Base is 2; exponent is 3. C. Base is 2; exponent is -3. D. Base is 3; exponent is 2.
Name the property illustrated by the sentence.7 + (a + b) = (7 + a) + b
A. Commutative property of addition B. Additive identity property C. Additive inverse property D. Associative property of addition
Find the square root.
A. not a real number B. 10 C. 50 D. 11