Answer: (-9, -3)
Step-by-step explanation:
A = (-3, -1)
A' = (-3, -1)*3 = (-9, -3)
Keeping in mind that the area of a circle is πr².
the actual area will just be the area of the rectangular backyard plus the pool, namely (10*20) + (π15²), which gives us an actual area of
200 + 225π.
now, we know the model and actual are on a 1:20 ratio.
7.2x10^-3--->.0072
you take 7.2 and move the decimal point 3 places to the left
When you use the quadratic formula, you’re making the function equal to 0. So we know that the zeros happen when x equals 2 and 4. So let’s try to think of a trinomial that factors to (x - 2)(x - 4). You could do FOIL to get x^2 - 6x + 8.
Now if you want to show your work, plug everything into the quadratic formula. Due to limitations on a phone, ill just write it out.
-b plus and minus the square root of b squared minus 4 times a times c, alllll over 2 times a