Find the mean for the frequency distribution. Round to the nearest tenth.
A. 308.7
B. 217.7
C. 109.0
D. 266.1
Answer: B
Mathematics
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Give a geometric description of the set of points whose coordinates satisfy the given conditions.8 ? z ? 9
A. All points between z = 8 and z = 9 in the x-y plane B. The slab between the planes z = 8 and z = 9 (including planes) C. No set of points satisfies the given relation D. The line from z = 8 to z = 9
Mathematics
Write the given number in scientific notation.39,000,000
A. 3.9 × 106 B. 3.9 × 10-7 C. 3.9 × 107 D. 3.9 × 10-6
Mathematics
Determine the amplitude and find the phase shift in radians (to the nearest tenth).y = -5 sin x + 7 cos x
A. 
, -2.5
B. 148, -2.5
C. 
, 2.5
D. 148, 2.5
Mathematics
Perform the conversion. Round to the nearest tenth when necessary.5 km to mi
A. 3.1 mi B. 4.7 mi C. 5.3 mi D. 8.1 mi
Mathematics