Answer:
Length of truck = 160 +7% of 160 = 160 +11.2 = 171.2inches
6n−20=−2n+4(1−3n)
Simplify both sides of the equation.
−6n−20=−2n+4(1−3n)
−6n+−20=−2n+(4)(1)+(4)(−3n)(Distribute)
−6n+−20=−2n+4+−12n
−6n−20=(−2n+−12n)+(4)(Combine Like Terms)
−6n−20=−14n+4
−6n−20=−14n+4
Add 14n to both sides.
−6n−20+14n=−14n+4+14n
8n−20=4
Add 20 to both sides.
8n−20+20=4+20
8n=24
Divide both sides by 8.
8n/8 = 24/8
n=3
It is already in identity.
cos (x - y) - cos (x + y) = 2 sin(x) sin (y)
Answer:
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5/6 because 5/6=0.80 and 2/3=0.66
