Answer:
D
Step-by-step explanation:
Stan works for 28 hours and gets paid $12 for each hour, so the amount of money he gets in total is $12*28 = $336.
Answer:
![\large\boxed{\dfrac{49}{53}-\dfrac{14}{53}i}](https://tex.z-dn.net/?f=%5Clarge%5Cboxed%7B%5Cdfrac%7B49%7D%7B53%7D-%5Cdfrac%7B14%7D%7B53%7Di%7D)
Step-by-step explanation:
![\text{Use}\\\\i=\sqrt{-1}\to i^2=-1\\\\(a-b)(a+b)=a^2-b^2\to(a-bi)(a+bi)=a^2+b^2\\\\\text{distributive property}\ a(b+c)=ab+ac\\---------------------\\\\\dfrac{-7i}{2-7i}=\dfrac{-7i}{2-7i}\cdot\dfrac{2+7i}{2+7i}=\dfrac{-7i(2+7i)}{2^2+7^2}=\dfrac{(-7i)(2)+(-7i)(7i)}{4+49}\\\\=\dfrac{-14i-49i^2}{53}=\dfrac{-14i-49(-1)}{53}=\dfrac{-14i+49}{53}\\\\=\dfrac{49}{53}-\dfrac{14}{53}i](https://tex.z-dn.net/?f=%5Ctext%7BUse%7D%5C%5C%5C%5Ci%3D%5Csqrt%7B-1%7D%5Cto%20i%5E2%3D-1%5C%5C%5C%5C%28a-b%29%28a%2Bb%29%3Da%5E2-b%5E2%5Cto%28a-bi%29%28a%2Bbi%29%3Da%5E2%2Bb%5E2%5C%5C%5C%5C%5Ctext%7Bdistributive%20property%7D%5C%20a%28b%2Bc%29%3Dab%2Bac%5C%5C---------------------%5C%5C%5C%5C%5Cdfrac%7B-7i%7D%7B2-7i%7D%3D%5Cdfrac%7B-7i%7D%7B2-7i%7D%5Ccdot%5Cdfrac%7B2%2B7i%7D%7B2%2B7i%7D%3D%5Cdfrac%7B-7i%282%2B7i%29%7D%7B2%5E2%2B7%5E2%7D%3D%5Cdfrac%7B%28-7i%29%282%29%2B%28-7i%29%287i%29%7D%7B4%2B49%7D%5C%5C%5C%5C%3D%5Cdfrac%7B-14i-49i%5E2%7D%7B53%7D%3D%5Cdfrac%7B-14i-49%28-1%29%7D%7B53%7D%3D%5Cdfrac%7B-14i%2B49%7D%7B53%7D%5C%5C%5C%5C%3D%5Cdfrac%7B49%7D%7B53%7D-%5Cdfrac%7B14%7D%7B53%7Di)
Full Question: Below is the diagram of the base of gazebo. Hunter is building for his backyard. He plans on gazebo having a height of 4 meters with a pyramid shaped roof that is an additional 2 meters high. He needs to order shingles for the roof and needs to know how much area is covered by shingles.
Answer:
![m^{2}](https://tex.z-dn.net/?f=m%5E%7B2%7D)
Answer:
6.9
7.-5
8.-10
Step-by-step explanation: