Solve.Find the area and perimeter of the figure:
A. area: 
ft2; perimeter: 2
ft
B. area: 
in2; perimeter: 2
in
C. area: 
ft2; perimeter: 1
ft
D. area: 
ft2; perimeter: 2
ft
Answer: D
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Find the length of the missing side of the right triangle. Round to three decimal places, if necessary. The legs of the right triangle are represented by a and b, and the hypotenuse is represented by c.a = 16, c = 20
A. b = 12 B. b = 11.576 C. b = 25.612 D. b = 384
Solve by using the square root property.x2 = 225
A. x = 15 B. x = ±15 C. x = ±16 D. x = 112.5
Find the mass of the surface S having the given mass density. S is part of the plane x + 7y + 3z = 21 in the first octant; the density at a point P on S is equal to the square of the distance between P and the xy-plane.
What will be an ideal response?
Use rational exponents to simplify. Do not use fraction exponents in the final answer. Assume that even roots are of nonnegative quantities.
A. (
)7
B. 
C. x28
D. (
)4