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Tresset [83]
3 years ago
11

Help plz,.cos5A - cosA / sin5A+sinA-2sin3A=cotAprove it.​

Mathematics
2 answers:
RSB [31]3 years ago
8 0

Answer:

here is your answer of the question

RSB [31]3 years ago
6 0

Answer:

hope it helps you have a great day keep smiling be happy stay safe

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If you use your office computer 40 hours per week, and do not unplug the computer when it is not in use, how much carbon dioxide
dangina [55]
If you use a laptop:  9.25; a desktop with a CRT monitor:  55.51; a desktop with an LCD monitor:  46.26.

A laptop that is plugged up and turned off uses 0.001kw/hr of energy.  Each kwh of energy produces, on average, 1.39 lbs of CO2.  There are 24*7=168 hours in the week; subtract the 40 hour work week from this and we have 128 hours a week for 52 weeks a year:
0.001*128*52=6.656*1.39=9.25.

A desktop that is plugged up and turned off uses 0.004kw/hr of energy.  A CRT monitor uses 0.002 kw/hr when turned off.  This means we have:
(0.004*128*52*1.39)+(0.002*128*52*1.39)=55.51.

For a desktop and an LCD monitor, which uses 0.001 kw/hr of energy, we have:
(0.004*128*52*139)+(0.001*128*52*1.39)=46.26.
6 0
3 years ago
-5x + 4 = 2x + 16<br> How do I solve this
Cloud [144]
Subtract 2x from both sides then you’d have -7x+4=16 Then you subtract 4 from both sides and you’d get -7x=12. Next you divide both side by -7 so x=1.75 rounded to the nearest hundredth.
8 0
3 years ago
A school marching band 200 members , there are 50 bad members who play bras instuments
Maurinko [17]

Answer: um i don’t know what your asking me?

Step-by-step explanation:

7 0
3 years ago
Can someone explain this?
natulia [17]

Answer:

58 degrees

Step-by-step explanation:

(x+45)+(x+66)=95

2x+45+66=95

2x+111=95

2x=95-111

2x=-16

x=-16/2

x=-8

x+66=-8+66=58

8 0
3 years ago
Read 2 more answers
A shipping crate is shaped like a rectangular prism. It is 5 1/2 feet long by 3 feet wide by 3 feet high. What is the volume of
Andrej [43]
Volume = Length x width x height 
Volume = 5 1/2 x 3 x 3 = 49.5 cubic feet
6 0
3 years ago
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