Find the circumference of the circle. Use ? ? 3.14 and round to the nearest hundredth.diameter = 78 units
A. 489.84 units
B. 122.46 units
C. 244.92 units
D. 19,103.76 units
Answer: C
Mathematics
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Use logax = (ln x)/(ln a) to calculate the logarithm. Round to the nearest ten thousandth.log7 71
A. 0.8451 B. 0.4565 C. 1.8513 D. 2.1906
Mathematics
Evaluate or simplify the given expression.cos(2 sin-1 x)
A. 2x2 + 1 B. 1 - 2x2 C. 1 D. 1 - x2
Mathematics
Evaluate.8x - 4y for x = 4 and y = 2
A. 24 B. 28 C. 40 D. 30
Mathematics
For the given arithmetic series, what is Sn?a1 = 10, d = 4, and n = 98
A. 20,002 B. 39,984 C. 19,992 D. 79,968
Mathematics