Let x represent the number. Write the English phrase as an algebraic expression.The quotient of 28 times a number and -3.
A. 28x + 3
B. 28x - 3
C. 
D. 
Answer: D
Mathematics
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Solve the problem.A certain noise has an intensity I of 
. Given that decibel level D is related to intensity by 
, where I0 is 10-12, determine the decibel level of the noise. Round to the nearest decibel.
A. 85 decibels B. 8 decibels C. 195 decibels D. 75 decibels
Mathematics
Write the equation of the axis of symmetry.f(x) = x2 - 2x + 4
A. x = -1 B. x = 0 C. x = 3 D. x = 1
Mathematics
Write the expression as a complex number in the form a + bi.3i
A. 3 - 3i B. 3 + 3i C. 3 + 0i D. 0 + 3i
Mathematics
Solve.Given log 2 = 0.3010 and log 3 = 0.4771, evaluate log12.
A. 0.5677 B. 0.2872 C. 1.0791 D. 1.2552
Mathematics