Find all real solutions. Do not use a calculator.x4 - 81 = 0
A. {±18}
B. {±3}
C. {±6}
D. {±9}
Answer: B
You might also like to view...
Find the midpoint of the segment with the given endpoints.(-5, -9) and (-2, -8)
A. (- 
, - 
)
B. (-7, -17)
C. (- 
, - 
)
D. (-3, -1)
Simplify the exponential expression.(x-3)-3
A. -x6
B. x9
C. 
D. 
Solve the problem.On the first four exams, your grades are 76, 95, 56, and 77. There is still a final exam, and it counts as two grades. You are hoping to earn a C in the course. This will occur if the average of your six exam grades is greater than or equal to 70 and less than 80. What range of grades on the final exam will result in earning a C?
A. [46, 96) B. [58, 88] C. [58, 88) D. [46, 96]
The following table shows the earnings for the Juarez family last year. Use this information to answer the question.MonthEarningsMonthEarningsJan.$1400July$1300Feb.$1150Aug.$2450Mar.$2950Sept.$2500Apr.$2300Oct.$2000May$1650Nov.$2350June$2700Dec.$2400What was the family's total income from January thru June?
A. $11,000 B. $9,200 C. $12,150 D. $13,000