Simplify the expression.
?
?
A. 2
B. 16
C. 4
D. 8
E. none of these
Answer: C
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Write the compound statement in symbolic form. Let letters assigned to the simple statements represent English sentences that are not negated. Use the dominance of connectives to show grouping symbols (parentheses) in symbolic statements.I change the station if and only if it's not true that both I like the song and the DJ is entertaining.
A. r ? ~(p ? q) B. r ? ~(p ? q) C. r ? (~p ? q) D. (r ? ~p) ? q
Solve the problem.Use the formula D = 10.0 log (S/S0), where the loudness of a sound in decibels is determined by S, the number of watt/m2 produced by the soundwave, and S0 = 1.00 × 10-12 watt/m2. What is the intensity in watt/m2 of a noise measured at 76 decibels? (Round to an appropriate number of significant digits.)
A. 4.0 × 10-4 watt/m2 B. 4.0 × 10-5 watt/m2 C. 2.0 × 1015 watt/m2 D. 7.6 × 10-10 watt/m2
Identify the quantities that are variable and the quantities that are constant.(the number of ounces in a pound of flour) ÷ (the number of guests at dinner)
A. number of ounces: constant; number of guests: variable B. number of ounces: variable; number of guests: variable C. number of ounces: constant; number of guests: constant D. number of ounces: variable; number of guests: constant
Simplify the expression. Write your answer without negative exponents. Whenever an exponent is negative or zero, assume that the base is not zero.(32)4
A. 729 B. 24 C. 36 D. 6561