What is (-5)2 ?
What is (-5)^{2 }?
- (-25)^{2}
- -25
- 5
- 25
Answer: 25 is correct. 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 (-5)^{2 }?
Answer: 25 is correct. 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 x^{2}x^{4 }?
Answer: x^{6 }is correct because you add the exponents, 2+4
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 hundredth place.
Answer: $573.18 is correct because $11.35 an hour x 40 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.