Perform the indicated multiplications...
12x*x+12x*2-5*2x-5*(-1)
12x^2+24x-10x+5 combine like terms
12x^2+14x+5
Answer:
the answer is 81
Step-by-step explanation:
1. find 75
2. add 75 + 24
3. subtract from 180 to find x
Answer:
Once you know the sum, you can divide that by 12 to get the measure of each interior angle: 1800°/12 = 150°
Step-by-step explanation:
Answer:
You need to categorize this to the form y=mx+c / y=mx+b
So,
12y=y & 3x=x
(Just let me know if u need further explanation or if this wasn't the ans. u were looking for)
Let w be the width of the deck. Then, using the total area, we get:
(9+2w)(18+2w)=400
4w²+54w-238=0
2w²+27w-119=0
(2w-7)(w+17)=0
w=-17 or 7/2
Using the positive value, we get a width of 3&1/2 ft. for the deck
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