Multiply. Leave your answer in exponent form.y9 ? y11
A. y99
B. 2y20
C. y20
D. 2y99
Answer: C
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Solve.A window is in the shape of a square topped by a semicircle. The side of the square is x cm and the window cannot be wider than 160 cm. Find the function for the area of the window and the domain of the function.
A. A = x2 + 
?x2 : 0 < x ? 160
B. A = x2 + 
?
2 : 0 < x ? 1602 + 
?
2
C. A = 4x2 + 
?x2 : 0 < x ? 160
D. A = x2 + 
?
2 : 0 < x ? 160
Find the inverse of the matrix. Round your answers to 3 decimal places.
?
What will be an ideal response?
In a right triangle, find the length of the side not given. Let c represent the length of the hypotenuse. Give an answer to the nearest tenth if necessary.a = 1 ft, b = 6 ft
A. c = 7 ft B. c ? 6.1 ft C. c ? 5.9 ft D. c ? 2.6 ft
Use the discriminant to classify the graph; then use the quadratic formula to solve for y.
a. 
b. 
c. 
d. 
e. 