Find the exact value of the expression without using a calculator.sin 115° cos 55° - cos 115° sin 55°
A. 
B. 
C. 
D. 
Answer: A
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Subtract.-33.12 - 168.54
A. 201.66 B. -201.66 C. 135.42 D. 137.67
The intensityIof light (in lumens) at a distancexmeters below the surface is given by src="https://sciemce.com/media/3/ppg__cognero__5.2_Applications_of_Exponential_Functions__media__b7039acf-3880-4a5e-a8dc-7067bdabeed3.PNG" class="wirisformula" align="middle" style="vertical-align: middle;" data-wiris-created="true" varid="variable_id_field" variablename="impvar_45dc1d5a52ac4f57af8e2e9cb" />. Find the intensity at a depth of 3 meters.
?
Please enter your answer as a number without the units, rounded to two decimal places.
Fill in the blank(s) with the appropriate word(s).
, whereI0 is the intensity at the surface andkdepends on the clarity of the water. At one location in the Arctic Ocean,
and
Solve.log 2 
= x
A. 2
B. 
C. 
D. -2
Find the exact value of the logarithmic expression.log81
A. 0
B. 8
C. 1
D. 