Answer: -15yx^2
Step-by-step explanation:
-12x^2 * y -3x^2 * y=
-12(x^2 * y)-3(x^2 * y)=
(-12-3)(x^2 * y)=
-15x^2 * y=-15yx^2
Answer:
Option C. ![1,206\ cm^{3}](https://tex.z-dn.net/?f=1%2C206%5C%20cm%5E%7B3%7D)
Step-by-step explanation:
we know that
The volume of the solid Eva created is equal to the volume of the triangular prism minus the volume of the rectangular prism notch
step 1
<em>Find the volume of the triangular prism</em>
The volume is equal to
![V=Bh](https://tex.z-dn.net/?f=V%3DBh)
where
B is the area of the triangular base
h is the height of the triangular prism
substitute
![V=\frac{1}{2}(12)(12)(18)=1,296\ cm^{3}](https://tex.z-dn.net/?f=V%3D%5Cfrac%7B1%7D%7B2%7D%2812%29%2812%29%2818%29%3D1%2C296%5C%20cm%5E%7B3%7D)
step 2
Find the volume of the rectangular prism notch
The volume is equal to
![V=(5)(1)(18)=90\ cm^{3}](https://tex.z-dn.net/?f=V%3D%285%29%281%29%2818%29%3D90%5C%20cm%5E%7B3%7D)
step 3
Find the volume of the solid Eva created
![1,296\ cm^{3}-90\ cm^{3}=1,206\ cm^{3}](https://tex.z-dn.net/?f=1%2C296%5C%20cm%5E%7B3%7D-90%5C%20cm%5E%7B3%7D%3D1%2C206%5C%20cm%5E%7B3%7D)
B 664 should be it! Hope it helps
Answer:
13/12
Step-by-step explanation:
1-2/3+9/12
least common denominator is 12
12/12 - 8/12+9/12
13/12