Answer:
D
Step-by-step explanation:
Use the general formula of quadratic equation:
![x_{1,2}=\dfrac{-b \pm\sqrt{b^2-4ac} }{2a} = \dfrac{6\pm\sqrt{36-40}}{4}=\dfrac{6\pm2i}{4} = \dfrac{3\pm i}{2}](https://tex.z-dn.net/?f=x_%7B1%2C2%7D%3D%5Cdfrac%7B-b%20%5Cpm%5Csqrt%7Bb%5E2-4ac%7D%20%20%7D%7B2a%7D%20%3D%20%5Cdfrac%7B6%5Cpm%5Csqrt%7B36-40%7D%7D%7B4%7D%3D%5Cdfrac%7B6%5Cpm2i%7D%7B4%7D%20%3D%20%5Cdfrac%7B3%5Cpm%20i%7D%7B2%7D)
Thus we choose D
Answer:
ok so first start with 97 and 45 put together 57/97 and
Step-by-step explanation:
Answer:
62 and 56 or 59 and 59
Step-by-step explanation:
62, 62, 56
or
62, 59, 59
The area for semi circle is: (pi)(r^2)/2
A= 3.142 x (8.2)^2 / 2
A= 110.8 cm^2