Find the mean for the group of data items. If necessary, round the answer to nearest tenth.1.4, 0.7, 0.9, 1.4, 0.5, 1.6, 0.5, 1.7, 2.1
A. 1.2
B. 1
C. 1.3
D. 10.8
Answer: A
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Find all cube roots of the complex number. Leave answers in trigonometric form.64
A. 4 cis 0°, 4 cis 60°, 4 cis 120° B. 4 cis 45°, 4 cis 165°, 4 cis 325° C. 4 cis 90°, 4 cis 210°, 4 cis 330° D. 4 cis 0°, 4 cis 120°, 4 cis 240°
Find all complex zeros of the polynomial function. Give exact values. List multiple zeros as necessary.f(x) = x3 - 3x2 - 5x + 39
A. -3, 3 + 2i, 3 - 2i
B. -3, 1 + 2i, 1 - 2i
C. -3, 3 + 4i, 3 - 4i
D. -3, 1 + 2
i, 1 - 2
i
Factor completely. If the polynomial is prime, state this.m3 - 4m2 + 4m
A. m(m - 4)(m - 1) B. m(m + 2)(m - 2) C. m(m - 2)2 D. (m2 + 4)(m - 1)
Solve the problem.Karen and Ivan traveled at 85 kilometers/hour for 3.3 hours. Their total trip will be 605 miles long. How many miles do they still need to travel? (Round your answer to the nearest whole mile, if necessary.)
A. 694 mi B. 431 mi C. 325 mi D. 552 mi