Answer:
and 
Step-by-step explanation:
sinB = 
= 
=
tanC = 
= 
= 
Thus
sinB tanC = × ( cancel b on numerator/ denominator )
=
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sinC = = 
=
tanB = = 
= 
Thus
sinC tanB = × ( cancel c on numerator/ denominator )
=
Answer:
55
Step-by-step explanation:
If you multiply by 5 to get it over 100, or the percent, you get 55/100 which can just be written as 0.55 or 55%.
Answer:
No.
Step-by-step explanation:
When you plug in -6 for x, and 6 for y, like this 5 (-6) + 12 (6) = -15, it does not equal -15, but 42.
Answer: Choice B) The expression (10-2x)(30-2x)x represents the volume of the box
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The original width is 10 inches. The width reduces to 10-2x inches after we cut off the top two corners of the rectangle. We can think of it as taking 10 and subtracting off two copies of x like so: 10-x-x = 10-2x
Similarly, the length goes from 30 inches to 30-2x inches. This time we're taking off the top and bottom corners (focus on either side it doesn't matter).
The height of the box is x inches due to this portion being folded up.
Volume of box = (width)*(length)*(height)
Volume of box = (10-2x)(30-2x)x
Note: the units for the answer are in cubic inches which can be written as "in^3" (inches cubed).
