Solve the equation.log (x + 9) = 1 - log x
A. 1
B. -1
C. -1, 10
D. -10, 1
Answer: A
Mathematics
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The following table shows the earnings for the Juarez family last year. Solve the problem.MonthEarningsMonthEarningsJan.$1400July$1300Feb.$1150Aug.$2450Mar.$2950Sept.$2500Apr.$2300Oct.$2000May$1650Nov.$2350June$2700Dec.$2400What was the family's total income from January through June?
A. $9200 B. $13,000 C. $11,000 D. $12,150
Mathematics
Divide and simplify.
A. 20x4 B. 3x4 C. 3x3 D. 3x8
Mathematics
Find, correct to the nearest degree, the angle between the planes.
x+y-z=1, 8x-11y+16z=5
Mathematics
Multiply.(x2 + 9)2
A. x4 + 18x2 + 81 B. x4 + 9x2 + 81 C. x4 + 9x + 81 D. x4 + 81
Mathematics