Write in if-then form.x = 8 only if 2x + 3 = 19.
A. If x ? 8, then 2x + 3 = 19.
B. If x = 8, then 2x + 3 = 19.
C. If 2x + 3 ? 19, then x = 8.
D. If 2x + 3 = 19, then x = 8.
Answer: D
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The decibel, a measure of loudness, is related to the relative intensity of sound by the formula
Decibels 
(Relative intensity).
If relative intensity is divided by 1,000, how are decibels affected?
?
A. Decibels are increased by 3. B. Decibels are decreased by 3. C. Decibels are increased by 30. D. Decibels are decreased by 30.
Evaluate.
A. -102 B. 72 C. -72 D. 338
Convert the units.60 kg = 
g
A. 6000 g B. 0.6 g C. 0.06 g D. 60,000 g
Provide the proper response.True or False? It is possible to draw a connected planar network with 8 edges that separates the plane into 10 regions.
Answer the following statement true (T) or false (F)