Mathematics, 14.12.2019 06:31 bvghchg2580
1. choose the biconditional that is equivalent to the definition, "a skyscraper is a very tall building."
a. a building is a skyscraper if and only if it is very tall.
b. if a building is a skyscraper, then it is very tall.
c. if a building is very tall, then it is a skyscraper.
d. a skyscraper is very tall if and only if it is a building.2. choose the biconditional statement with the same meaning as these two statements combined:
statement 1: if a number is positive, then it is greater than zero.
statement 2: if a number is greater than zero, then it is positive.
a. a number is positive if and only if it is not zero.
b. if a number is positive and greater than zero, then it is not negative.
c. a number is positive if and only if it is greater than zero.
d. if a number is non-negative, then it is positive.3. rewrite the statement, "a dog is a puppy if and only if it is young," as a conditional and its converse.
a. conditional: a dog is a puppy. converse: a dog is young.
b. conditional: a puppy is a dog. converse: a puppy is young.
c. conditional: if a puppy is young, then it is a dog. converse: if a puppy is a dog, then it is young.
d. conditional: if a dog is young, then it is a puppy. converse: if a dog is a puppy, then it is young.4. if p represents "x=7" and q represents "x2=49," which symbolic statement is true?
a. p→q
b. q→p
c. p↔q
d. all statements are true.5. which biconditional statement is true?
a. a number is divisible by 9 if and only if it ends in 3.
b. a quadrilateral is a square if and only if it has four right angles.
c. the sum of two integers is positive if and only if the two integers are positive.
d. a number is an even number if and only if it is divisible by 2.
Answers: 1
Mathematics, 21.06.2019 15:10, pampam49
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Mathematics, 21.06.2019 18:10, hellodarkness14
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1. choose the biconditional that is equivalent to the definition, "a skyscraper is a very tall build...
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