Use properties of rational numbers to multiply the following.
81 × (-28.54)
(2 points)
a x b
To multiply rational numbers, we simply multiply the numerators together and the denominators together.
In this case, 81 is a rational number because it can be written as 81/1, and -28.54 is also a rational number because it can be written as -2854/100.
Therefore, we can multiply 81/1 and -2854/100 as follows:
81/1 * -2854/100 = (81 * -2854)/(1 * 100) = -231,774/100
So, the product of 81 and -28.54 is -231,774/100.
To multiply rational numbers, you can simply multiply the numerators together and multiply the denominators together.
In this case, we have 81 as the numerator and -28.54 as the denominator.
Therefore, the multiplication of 81 × (-28.54) is:
81 × -28.54 = -2317.74