# Which biconditional is not a good definition

## Which Biconditional is not good definition?

If

**three points are collinear**, then they are coplanar. If three points are coplanar, then they are collinear. The biconditional is not a good definition. Three coplanar points might not lie on the same line.## What is a biconditional statement?

A biconditional statement is

**a combination of a conditional statement and its converse written in**the if and only if form. … It is a combination of two conditional statements, “if two line segments are congruent then they are of equal length” and “if two line segments are of equal length then they are congruent”.## What is the conclusion of the following conditional a number is divisible by two if the number is even?

All even numbers are divisible by 2. Therefore, a number is divisible by 2 if it has

**a 0, 2, 4, 6, or 8 in the ones place**. For example, 54 and 2,870 are divisible by 2, but 2,221 is not divisible by 2.## What is the conclusion of the following conditional a number is divisible by 3 if the sum of the digits of the number is divisible by 3 quizlet?

If the sum of the digits of the number is divisible by 3, then

**the number is divisible by 3**. You just studied 23 terms!## How do you write Biconditionals?

‘ Biconditional statements are true statements that combine the hypothesis and the conclusion with the key words ‘

**if and only if**. ‘ For example, the statement will take this form: (hypothesis) if and only if (conclusion). We could also write it this way: (conclusion) if and only if (hypothesis).## What is an example of biconditional?

If I have a pet

**goat**, then my homework will be eaten. If I have a triangle, then my polygon has only three sides. If the polygon has only four sides, then the polygon is a quadrilateral. If I eat lunch, then my mood will improve.## What is the conclusion of the following conditional a number is divisible by 3 if the sum of the digits?

A number is divisible by 3 if the sum of the digits of the number is divisible by 3.

## What is the conclusion of the following conditional statement if it rains then?

If the hypothesis of a true conditional statement is true, then the conclusion is also

**true**. Example: “If it is raining, then there are clouds.” If the hypothesis is true (If it is, in fact, raining) then the conclusion is true.## Which statement is a good definition of a rectangle?

A rectangle is

**a quadrilateral with four congruent angles**.## What is the conclusion of the following conditional a number is divisible by 9 if the sum of the digits of the number is Divisble by 9?

If the sum of the digits of a number is divisible by 9, then

**the number is divisible by 9**.## What is the conclusion of the following conditional a number is divisible by 5 if the number ends with digits 0 or 5?

If a number ends with the digit 0 or 5, then the number is divisible by 5. B.

**The number is odd**.## Which conditional has the same truth value?

contrapositive

**The contrapositive**does always have the same truth value as the conditional. If the conditional is true then the contrapositive is true.

## Which is not divisible by 9?

Consider the following numbers which are not divisible by 9, using the rules of divisibility by 9:

**73, 237, 394**, 1277, 1379. Sum of the digits of 73 = 7 + 3 = 10, which is not divisible by 9. Hence, 73 is not divisible by 9.## What is the divisibility rules for 9?

The divisibility rule of 9 states

**that if the sum of digits of any number is divisible by 9, then the number is also divisible by 9**. It helps us in various concepts like finding divisors, HCF, LCM, measurements, and division.## Which statement best explains the relationship between numbers divisible by 9 and 3?

**Every number divisible by 9 is divisible by 3**. For example, 7425 is divisible by 9, hence it is divisible by 3. However, a number divisible by 3 is not necessarily divisible by 9. For example 6, 12, 15, 21, 24, 30 are all divisible by 3 but none of them is divisible by 9.

## Which of the following is not divisible by 10?

Consider the following numbers which are not divisible by 10, using the rules of divisibility by 10:

**317, 125, 103, 1009**here all these numbers are not divisible by 10 because their units place is not 0. Similarly, the numbers 141, 63, 87, 105, 503, 129 are not divisible by 10 because their units place is not 0.## Is 12 divisible by 3 yes or no?

Since the answer to our division is a whole number, we know that

**12 is divisible by 3**. Hopefully now you know exactly how to work out whether one number is divisible by another.## Which is not divisible by 11?

Divisibility test of 11: If the difference of the sum of alternative digits of a number is divisible by 11, then that number is divisible by 11 completely.

**1**is not divisible by 11 so, the number is not divisible by 11.## Which of the following is not divisible by 3?

Sum of all the digits of

**73**= 7 + 3 = 10, which is not divisible by 3. Hence, 73 is not divisible by 3. Sum of all the digits of 137 = 1 + 3 + 7 = 11, which is not divisible by 3. Hence, 137 is not divisible by 3.## Which of the following is not divisible by 8?

**1873**is not divisible by 8 because 873 is not divisible by 8 and leaves 1 as the remainder when divided by 8. Give five examples of numbers, each one of which is divisible by 4 but not divisible by 8. All numbers which are divisible by 4 may not be divisible by 8.

## Which of the following is not divisible by 5?

Consider the following numbers which are not divisible by 5, using the rules of divisibility by 5: 54,

**77**, 106, 127, 152. In 54, the unit’s place digit is 4. Hence, 54 is not divisible by 5. In 77, the unit’s place digit is 7.