Use the formula for the sum of the first n terms of a geometric sequence to evaluate the sum.
A. 425
B. 1705
C. 135
D. 85
Answer: B
Mathematics
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Simplify the expression.
A. 
B. - 
j
C. 
j
D. - 
Mathematics
Provide an appropriate response.Can an equation of a vertical line be written in slope-intercept form? Explain.
What will be an ideal response?
Mathematics
Use the properties of logarithms to rewrite the expression. Simplify the result if possible. Assume all variables represent positive real numbers.log2 
A. (9 log2 x)(7 log2 y) ÷ log2 7 B. 9 log2 x + 7 log2 y - log2 7 C. 9 log2 x + 7 log2 y + log2 7 D. ( log2 x)9 + (log2 y)7 - log2 7
Mathematics
Find the standard deviation. Round to the nearest tenth.11, 16, 12, 12, 24, 13, 15, 23, 24, 20
A. 15.5 B. 17 C. 25 D. 5
Mathematics