105 degrees is the answer
Answer:
The answer is B
Step-by-step explanation:
(-2.4) (-1.8) and (-0.6) (-0.4) all these numbers
<em>have the save sign also -2.4 and 1.8 is -4.32 -0.6 and -0.4 is</em>
<em>-0.24 -4.32 and -0.24 is -1.0 </em>
ANSWER
C. 38.83 miles per hour.
EXPLANATION
It was given that, the fuel economy of a car, measured in miles per gallon, is modeled by the function
![f(s) = - 0.009 {s}^{2} + 0.699s + 12](https://tex.z-dn.net/?f=f%28s%29%20%3D%20-%200.009%20%7Bs%7D%5E%7B2%7D%20%2B%200.699s%20%2B%2012)
We rewrite the function in the vertex form by completing the square.
![f(s) = - 0.009( {s}^{2} - \frac{233}{3} s) + 12](https://tex.z-dn.net/?f=f%28s%29%20%3D%20-%200.009%28%20%7Bs%7D%5E%7B2%7D%20-%20%5Cfrac%7B233%7D%7B3%7D%20s%29%20%2B%2012)
![f(s) = - 0.009( {s}^{2} - \frac{233}{3} s + {( - \frac{233}{6}) }^{2} ) + 12 + - - 0.009 {( - \frac{233}{6}) }^{2}](https://tex.z-dn.net/?f=f%28s%29%20%3D%20-%200.009%28%20%7Bs%7D%5E%7B2%7D%20-%20%5Cfrac%7B233%7D%7B3%7D%20s%20%2B%20%7B%28%20-%20%5Cfrac%7B233%7D%7B6%7D%29%20%7D%5E%7B2%7D%20%29%20%2B%2012%20%2B%20-%20-%200.009%20%7B%28%20-%20%5Cfrac%7B233%7D%7B6%7D%29%20%7D%5E%7B2%7D)
![f(s) = - 0.009 {( s- \frac{233}{6}) }^{2} + 12 + 13.57225](https://tex.z-dn.net/?f=f%28s%29%20%3D%20-%200.009%20%7B%28%20s-%20%5Cfrac%7B233%7D%7B6%7D%29%20%7D%5E%7B2%7D%20%2B%2012%20%2B%2013.57225)
![f(s) = - 0.009 {( s- \frac{233}{6}) }^{2} + 25.57225](https://tex.z-dn.net/?f=f%28s%29%20%3D%20-%200.009%20%7B%28%20s-%20%5Cfrac%7B233%7D%7B6%7D%29%20%7D%5E%7B2%7D%20%2B%2025.57225)
Or
![f(s) = - 0.009 {( s- 38.83) }^{2} +25.57](https://tex.z-dn.net/?f=f%28s%29%20%3D%20-%200.009%20%7B%28%20s-%2038.83%29%20%7D%5E%7B2%7D%20%2B25.57)
The vertex of this function is
![V(38.83,25.57)](https://tex.z-dn.net/?f=V%2838.83%2C25.57%29)
Hence the maximum fuel economy is 25.57 gallons and this occurred at an average speed of 38.83.
The correct answer is C
Answer:
The scale factor is 1 : 3, and the missing length is 8
Step-by-step explanation:
The scale factor: 7/21 = 1/3, 6/18 = 1/3
The missing length: 24/3 = 8 or 8/24= 1/3
If it is right can you please give me a brainliest. Pls. It is fine if you didn't bu here's the answer