Fin the bottom half by multiplying 10 by 20 which gives you 200 then find the top half with the formula for a trapezium so it would be 2x (1/2(14+20)) in this case the 2 and the half cancel eachother out so you end up with 34. then add the 2 halves together so 34+200=234 and theres your answer
<span>the sum of the first and three times the second is 54.
x + 3y = 54
3y = 54 - x
y= 54 /3 - x / 3 = 18 -x /3
</span>xy = x (18 -x /3) = 18x - x^2 / 3 = - 1/3 x ^ 2 + 18 x
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</span><span>since a<0, it is concave downward, and the vertex is the maximum value. That vertex occurs at x= - b /2a = (-18) / (-2/3) = 12
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<span>The first number is x=12.
The second is y = </span><span>18 -x /3 = 18- 12/ 3 = 18 - 4 = 14 </span>
Answer:
quadratic
Step-by-step explanation:
I believe the answer to that is x = - 2 over F - 0.5
___2___
X= - F - 0.5
Like that. I can't draw the answer out, I'm sorry.