Write the expression in standard form.(7 - 5i)(5 - 6i)
A. 5 + 67i
B. 5 - 67i
C. 65 + 35i
D. 30i2 - 67i + 35
Answer: B
Mathematics
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Find all the permutations of the set.How many permutations are there of a ten-element set?
A. 10 B. 3,628,800 C. 100 D. 10,000,000,000
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Find the exact value under the given conditions.sin ? = , 0 < ? <
; cos ? =
, 0 < ? <
Find cos (? + ?).
A.
B.
C.
D.
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Convert the angle into degree decimal form. Round the answer to two decimal places.26°30'49''
A. 26.47° B. 26.51° C. 26.52° D. 26.57°
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Use the graph to estimate all solutions to the system of equations.x2 + y2 = 17y = 4x
A. (0, 0) B. (1, 4), (1, -4) C. (0, 0), (1, 4), (-1, -4) D. (1, 4), (-1, -4)
Mathematics