Rationalize the denominator.
A.
B.
C.
D.
Answer: C
Mathematics
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Write the augmented matrix for the system.7x + 3z = 224y + 4z = 325x + 5y + 6z = 50
A.
B.
C.
D.
Mathematics
Solve the equation.4x + 4 = 5(x - 2)
A. 6 B. -14 C. -6 D. 14
Mathematics
Find a formula for the nth term of the sequence.The sequence 1, - ,
, -
,
, . . . (reciprocals of squares with alternating signs)
A. an =
B. an =
C. an =
D. an =
Mathematics
Solve.A rectangular room measures 17 ft by 13 ft. Find the cost of installing a wallpaper border around the room if the border costs $0.65 per foot.
A. $287.30 B. $39.00 C. $143.65 D. $19.50
Mathematics