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Are rational numbers always integers?
Most of the time yes, positive or negative whole numbers count as rational numbers. So do positive or negative fractions.
Multiplying an even number of negative numbers gives an answer that is?
Multiplying an even number of negative numbers results in a positive number. This is because each pair of negative numbers multiplies to give a positive product, and with an even count, all pairs will cancel out the negativity. Therefore, the final result will be positive.
How can you find the sign of the product of two or more rational numbers?
Count the number of negative values. If that number is even, the answer is positive and if it is odd, the answer is negative.
How can you graph and locate points that contain negative numbers in a coordinate plane?
To,plota point, start at the origin and count along the x axis until you reach the x coordinate, count right for positive numbers, left for negative.
What is the rule for multiplying integers with different signs?
Multiply two integers disregarding the signs. Then if the signs are the same, the answer is positive and if the signs are different, the answer is negative. Alternatively, if you are multiplying together a whole bunch of numbers, first find the product while ignoring the signs. Then count all the negative numbers. If the count is even, the answer is positive and if it is odd, the answer is negative.
When do you use positive integers?
The set of natural numbers (counting numbers) {1,2,3,4....} corresponds to the positive integers. Note that the number 0 is neither positive nor negative. So anytime you want to count something you use natural numbers, which means you are also using positive integers.
Does a negative number times a negative number equal a positive number?
Yes, as long as you don't count zero as either positive or negative.
What will be the sign of the product if we multiply 90 negative integers and 9 positive integers?
The product of any number of negative integers is positive if there is an even count of them, and negative if there is an odd count. Since 90 is an even number, the product of the 90 negative integers will be positive. When this positive product is multiplied by the 9 positive integers, the overall product remains positive. Therefore, the sign of the product will be positive.
Is the product of an odd number of negative fractions always negative?
Yes, the product of an odd number of negative fractions is always negative. This is because multiplying two negative numbers results in a positive number, and when you multiply a positive number by a negative number, the result is negative. Therefore, with an odd count of negative fractions, one negative will remain after all pairs are multiplied, resulting in a negative product.
How are numbers ordered and found on a number lines?
A number line always starts at zero. The numbers to the right are ordered in sequence and are positive whole numbers. EXAMPLE: 0 1 2 3 4 are positive numbers. The numbers to the left of zero are negative. EXAMPLE: 4 3 2 1 0 The order the numbers are in is just like you would count normally. Negative 4 3 2 1 0 1 2 3 4 Positive
What all the counting numbers?
1to9 are counting numbers Counting numbers are positive whole numbers and not zero. They can also be called 'natural numbers'. They are so called because when you count, you start at +1, then +2, +3 and continue on in this... That would be zero, and negative integers. "Counting numbers" refers to integers (whole numbers) that are positive (larger than zero).
Is a mean of a set of negative numbers always negative?
Yes, the mean of a set of negative numbers is always negative. The mean is calculated by summing all the numbers and then dividing by the count of numbers. Since all the numbers in the set are negative, their sum will also be negative, resulting in a negative mean.
