Answer:
-11.8
Step-by-step explanation:
hope this helps!!!:)
Answer:
For the first option 1h for the second option is 7h and she will earn the same which is 112$
Step-by-step explanation:
12 x 1 = 12 + 100 = 112
16 x 17 =112
3π = 540 Degrees
Hope it helped :)
Since ur using r as a variable the answer is r = 7.
Answer:
![15,000\:\mathrm{mm^3}](https://tex.z-dn.net/?f=15%2C000%5C%3A%5Cmathrm%7Bmm%5E3%7D)
Step-by-step explanation:
The composite figure consists of a square prism and a trapezoidal prism. By adding the volume of each, we obtain the volume of the composite figure.
The volume of the square prism is given by
, where
is the base length and
is the height. Substituting given values, we have: ![V=14^2\cdot 30=196\cdot 30=5,880\:\mathrm{mm^3}](https://tex.z-dn.net/?f=V%3D14%5E2%5Ccdot%2030%3D196%5Ccdot%2030%3D5%2C880%5C%3A%5Cmathrm%7Bmm%5E3%7D)
The volume of a trapezoidal prism is given by
, where
and
are bases of the trapezoid,
is the length of the height of the trapezoid and
is the height. This may look very confusing, but to break it down, we're finding the area of the trapezoid (base) and multiplying it by the height. The area of a trapezoid is given by the average of the bases (
) multiplied by the trapezoid's height (
).
Substituting given values, we get:
![V=\frac{14+24}{2}\cdot (30-14)\cdot 30,\\V=19\cdot 16\cdot 30=9,120\:\mathrm{mm^3}}](https://tex.z-dn.net/?f=V%3D%5Cfrac%7B14%2B24%7D%7B2%7D%5Ccdot%20%2830-14%29%5Ccdot%2030%2C%5C%5CV%3D19%5Ccdot%2016%5Ccdot%2030%3D9%2C120%5C%3A%5Cmathrm%7Bmm%5E3%7D%7D)
Therefore, the total volume of the composite figure is
(ah, perfect)
Alternatively, we can break the figure into a larger square prism and a triangular prism to verify the same answer:
![V=30^2\cdot 14+\frac{1}{2}\cdot10\cdot 16\cdot 30=\boxed{15,000\:\mathrm{mm^3}}\checkmark](https://tex.z-dn.net/?f=V%3D30%5E2%5Ccdot%2014%2B%5Cfrac%7B1%7D%7B2%7D%5Ccdot10%5Ccdot%2016%5Ccdot%2030%3D%5Cboxed%7B15%2C000%5C%3A%5Cmathrm%7Bmm%5E3%7D%7D%5Ccheckmark)