<span> a • (6ab2 + 2ab - 2a - 3b2 + 4b)
</span>
Step by step solution :<span>Step 1 :
</span><span>Equation at the end of step 1 :</span> (3ab • (2ab + 2a - b)) - 2a • (2ab + a - 2b)
<span>Step 2 :</span><span>Equation at the end of step 2 :</span> 3ab • (2ab + 2a - b) - 2a • (2ab + a - 2b)
<span>Step 3 :</span><span>Step 4 :</span>Pulling out like terms :
<span> 4.1 </span> Pull out like factors :
<span> 6a2b2 + 2a2b - 2a2 - 3ab2 + 4ab</span> =
<span> a • (6ab2 + 2ab - 2a - 3b2 + 4b)</span>
Final result :<span> a • (6ab2 + 2ab - 2a - 3b2 + 4b)</span>
Answer:
Step-by-step explanation:
here is some helpful trig function reminders.. copy this and keep it
Use SOH CAH TOA to recall how the trig functions fit on a triangle
SOH: Sin(Ф)= Opp / Hyp
CAH: Cos(Ф)= Adj / Hyp
TOA: Tan(Ф) = Opp / Adj
they ask how long is the ladder
they give us the opposite side (8) and the adjacent side (6)
and the Hyp is the length of the ladder. They expect you to sort this out in your head. :/
there is two steps .. we'll solve for the angle.. then we can use that to find the Hyp side..(long side of triangle) which is the ladder length
Tan(Ф) = Opp / Adj
Tan(Ф) = 8 / 6
Ф = arcTan(8 / 6)
Ф ≈ 53.130°
now lets use that angle with one of the other trig functions to find the Hyp.. sin or cos will work b/c we have both the opp and the adj sides lengths. let's use cos
Cos(53.130) = 6 / Hyp
Hyp = 6 / Cos(53.130) ( I just used algebra to swap the two)
Hyp = 9.99997
the ladder will be 10' long.
ask in the comments if you need any more explaining
3w = $9.25 would be the equation in this case. In order to solve it, you must divide $9.25 by 3. $9.25 / 3 = $3.83 (repeating bar over the second 3). The cost of one box of popcorn is $3.83.
30 kilograms
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