The reciprocal of a negative number is also a negative number because when the two numbers are multiplied the answer is 1. For example, the reciprocal of -6 is -1/6, and the product of these two numbers is -6 x (-1/6)= 1.
Continue ReadingThe reciprocal of a number is also known as a multiplicative inverse, and it is defined as that number which when multiplied by the given number gives the result as unity, in other words 1. A reciprocal is determined by exchanging the position of the numerator and denominator in a given number. For example, the reciprocal of -2/3 is -3/2.
Learn more about NumbersRounding to two decimal places means leaving only two numbers to the right of the decimal point. When the number in the third decimal place is any number between zero and four, round to two decimal places by deleting everything to the right of the second number. If the number in the third decimal place is any number from five to nine, round the number in the second decimal place up by one, and delete all the numbers after it.
Full Answer >The two numbers that have a tens digit that is eight more than the ones digit are 80 and 91. Note that there are some larger numbers that also exhibit this pattern, such as 180, 280, 191 or 291.
Full Answer >The answer to a subtraction problem is called the "difference." The other two numbers in a subtraction equation are called the "minuend" and the "subtrahend." The minuend minus the subtrahend equals the difference.
Full Answer >To divide by complex numbers, multiply by the conjugate, distribute to eliminate the parentheses, simplify, combine like terms, and represent the answer in standard form: a + bi. Remember that i^2 = (-1) when sorting out constants and imaginary terms.
Full Answer >