Use the substitution-of-variable technique to solve the system analytically.
- 
= 
+ 
= 
A. 
B. {(5, 6)}
C. {(-5, -6)}
D. {(-6, -5)}
Answer: C
Mathematics
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Express the sum in sigma notation.1 - 2 + 4 - 8 + 16
A. 
2k
B. 
C. 
2k
D. 
2k + 1
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what is the length of c?
ÚÄ
If a = û3 and b = 1,
a. ÚÄ
û3
b 1
c. ÚÄ
û2
d. 2
e. ÚÄ
û3/2
Mathematics
Perform the indicated operations and express your answer in the form a + bi. 
A. -13i B. -13 C. 13 D. 13i
Mathematics
Choose the most reasonable metric length unit. Choose from km, m, cm, and mm.The length of the nail is 29 
.
A. km B. mm C. m D. cm
Mathematics