In each group of four products, one is wrong. Use estimation to determine which product is incorrect.
A. 4357 × 68 = 296,276
B. 38 × 455 = 17,811
C. 194 × 84 = 16,296
D. 146 × 36 = 5256
Answer: B
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A. exactly one real solution B. two real solutions C. two nonreal solutions
Determine if the argument is valid or invalid. Give a reason to justify answer.If the bell rings, then we answer the door.The bell rings. ? We answer the door.
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A. yes B. no