Which number is represented by the Roman numeral XXVII?
Answer(s): B
In Roman numerals, an “X” represents the number 10, a “V” represents 5, and “I” is representative of the number 1. In this problem we have 2 X’s, 1 V, and two II’s, which means we have two 10’s (20), one 5, and two 1’s (2).Written mathematically, 20 + 5 + 2 = 27
What is (-5)2?
Answer(s): C
In this situation you address the parenthesis and then the exponent, and the negatives would cancel each other out for a positive answer.
What is ?
It is assumed in math that terms will be presented in their simplest form. This one is not, so you would add the exponents to simplify it: 2 + 4 = 6, so x2x4 = x6.
Lance makes $11.35 an hour and earns time and a half pay for every hour over 40. If Lance worked 47 hours this week, about how much will his paycheck be? Round to the hundredths place.
Answer(s): D
$573.18 is correct because $11.35 an hour x40 hours a week equals $454.Time and a half pay for Lance would be $17.025, and you figure that out by multiplying $11.35 an hour by 1.5. Then multiply $17.025 times 7 overtime hours to get $119.175.Lastly, add $454 and $119.175 and you will get $573.175. Rounded to the hundredth place would be $573.18.
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