Solve using a proportion. Round your answer to the nearest hundredth when necessary.In a random sampling from a survey concerning music listening habits, 100 out of 120 at-home mothers preferred easy listening to punk rock. Taking all the data from the survey, 220 at-home mothers expressed a preference for easy listening over punk rock. How many at-home mothers would you estimate took part in the survey?
A. 264 mothers
B. 259 mothers
C. 254 mothers
D. 273 mothers
Answer: A
Mathematics
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Match the equation with the surface it defines.
- 
- 
= 1 
A. Figure 2 B. Figure 1 C. Figure 3 D. Figure 4
Mathematics
Find the circumference and area of the circle. Use 3.14 for ?. Round your results to the nearest tenth.
A. C ? 9.4 mi, A ? 9.4 mi2 B. C ? 4.7 mi, A ? 28.3 mi2 C. C ? 4.7 mi, A ? 18.8 mi2 D. C ? 9.4 mi, A ? 7.1 mi2
Mathematics
Find the order of the matrix product AB and the product BA, whenever the products exist.A is 1 x 2, B is 1 x 2.
A. AB is 1 x 2, BA is 2 x 1. B. AB is 1 x 1, BA is 2 x 2. C. AB is nonexistent, BA is nonexistent. D. AB is 2 x 1, BA is 1 x 2.
Mathematics
Solve the given equation for x.log3x = -2
A. 
B. 
C. 
D. 
Mathematics