<span>Simplifying
cos(5x) + cos(2x) = 0
(5x)
cos * 5x + cos(2x) = 0
</span> 5cos * x + cos(2x) = 0
Multiply cos * x
5cosx + cos(2x) = 0
(2x)
5cosx + cos * 2x = 0
5cosx + 2cos * x = 0
Multiply cos * x
5cosx + 2cosx = 0 5cosx + 2cosx = 7cosx
7cosx = 0
Solving
7cosx = 0
Solving for variable 'c'. cosx = 0
Simplifying
cosx = 0
Hope this helps!
In short your answer is 0
Answer:
0.3
Step-by-step explanation:
6 yards first they minused 3 then they added 3 so the overall is 6 3+3=6
pls give brainliest
61/100-7/25 ••• First, find a common denominator. In this case, that would be 100
61/100-28/100 ••• Then, subtract the numerators
33/100 would be your solution.
<span>Faster maid DATA:
time = x hr/job ; rate = 1/x job/jhr
Slower maid DATA:
time = 3x hr/job ; rate = 1/3x job/hr
Together DATA:
time = 3 hr/job ; rate = 1/3 job/hr
Equation:
rate + rate = together rate
1/x + 1/3x = 1/3
Multiply thru by 3x to get:
3 + 1 = x
x = 4 hrs (time for the faster maid to do the job)</span>
