Write the number in expanded form.507
A. 5(10)+ 0(100) + 7(1000)
B. 5(100) + 0(10) + 7(1)
C. 5(1000) + 0(100) + 7(10)
D. 5(1) + 0(10) + 7(100)
Answer: B
Mathematics
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Write an expression for the general or nth term, an, for the geometric sequence.-2, 6, -18, 54, . . .
A. an = -2 ? (-3)n-1 B. an = 2 ? (-3)n C. an = -2 ? 3n D. an = 2 ? (-3)n-1
Mathematics
Subtract.8756
A. 7433 B. 8435 C. 7393 D. 7435
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Write the number in decimal notation.The average high temperature in Death Valley, averaged over one week, was one hundred twenty-two and fifty-two hundredths °F.
A. 122.502 °F B. 122.0502 °F C. 122.52 °F D. 122.052 °F
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Use the laws of exponents to simplify. Do not use negative exponents in your answer.z-2/5 ? z3/5
A. z5/6 B. z6/5 C. z-1/5 D. z1/5
Mathematics