In a school survey, students showed these preferences for instructional materials. Answer the question.
About how many students would you expect to prefer radio in a school of 350 students?
A. About 18 students
B. About 5 students
C. About 63 students
D. About 126 students
Answer: A
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Convert the compound statement into words.p = "The food tastes delicious."q = "We eat a lot."r = "Nobody has dessert."~q ? (p ? r)
A. We do not eat a lot or the food tastes delicious or nobody has dessert. B. We do not eat a lot and the food tastes delicious and nobody has dessert. C. We eat a lot or the food tastes delicious and nobody has dessert. D. We do not eat a lot or the food tastes delicious and nobody has dessert.
Simplify the expression.sin 8x cos 8x
A. cos 4x
B. 2 sin 4x
C. cos 8x
D. 
sin 16x
Solve the problem.A coil of wire rotating in a magnetic field induces a voltage given by 
where t is time in seconds. Find the smallest positive time to produce a voltage of 10
.
A. 2.8 seconds B. 2.8? seconds C. 3? seconds D. 3 seconds
Use estimation to select the best response. Do not calculate. ? In order to retire and live on the interest only, what is a reasonable amount to have in the bank? ? $ __________ (10,000; 300; 500,000; impossible to estimate)
What will be an ideal response?