Perform the operation. Write the answer as a fraction in lowest terms. 
+ 
A. 
B. 
C. 
D. 
Answer: D
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Use a calculator to evaluate the expression. (Round your answer to three decimal places.)
?
A. 1.523 × 1010 B. 1.523 × 1011 C. 3.222 × 109 D. 3.222 × 1011 E. 3.222 × 1010
Solve the problem.A rectangular piece of fabric is 
by 
A triangular area with a height of 
and a base of 
is cut from the fabric. How much area is left over?
A. 208.32 ft2 B. 377.28 ft2 C. 277.2 ft2 D. 188.64 ft2
The matrix associated with the solution to a system of linear equations in x, y, and z is given. Write the solution to the system, if it exists.
A. infinitely many solutions of the form x = 2 + 3z, y = 4 + z, z = z B. infinitely many solutions of the form x = 2 - 3z, y = 4 - z, z = z C. infinitely many solutions of the form x = 2 + 3z, y = 4 - z, z = z D. infinitely many solutions of the form x = 2 - 3z, y = 4 + z, z = z
Provide an appropriate response.Show that C
= 
What will be an ideal response?