8.715
2.49 x 3 1/2 = 8.715
QS would be 42. So the way i did it was I:
8x-51=3x-6
x=9
Plugged into both equations of QR and RS to then get the answer of 42
<u>Given</u>:
Given that the three functions f(x), g(x) and h(x)
We need to determine the function that has the greatest y -intercept.
<u>The y - intercept of f(x):</u>
The function f(x) is ![f(x)=4x+5](https://tex.z-dn.net/?f=f%28x%29%3D4x%2B5)
To determine the y - intercept let us substitute x = 0 in the function.
Thus, we have;
![f(x)=4(0)+5](https://tex.z-dn.net/?f=f%28x%29%3D4%280%29%2B5)
![f(x)=5](https://tex.z-dn.net/?f=f%28x%29%3D5)
The y - intercept of f(x) is 5.
<u>The y - intercept of g(x):</u>
From the figure, the value of y when x = 0 is 2.
Thus, the y - intercept of g(x) is 2.
<u>The y - intercept of h(x):</u>
The function h(x) is ![h(x)=3 \sin (2 x+\pi)-2](https://tex.z-dn.net/?f=h%28x%29%3D3%20%5Csin%20%282%20x%2B%5Cpi%29-2)
To determine the y - intercept, let us substitute x = 0 in the function.
Thus, we have;
![h(x)=3 \sin (2 (0)+\pi)-2](https://tex.z-dn.net/?f=h%28x%29%3D3%20%5Csin%20%282%20%280%29%2B%5Cpi%29-2)
![h(x)=3 \sin \pi -2](https://tex.z-dn.net/?f=h%28x%29%3D3%20%5Csin%20%20%5Cpi%20-2)
![h(x)=3(0)-2](https://tex.z-dn.net/?f=h%28x%29%3D3%280%29-2)
![h(x)=-2](https://tex.z-dn.net/?f=h%28x%29%3D-2)
Thus, the y - intercept of h(x) is -2.
Hence, the function that has the greatest y - intercept is f(x).
Thus, Option a is the correct answer.
Answer:All real solutions
Step-by-step explanation:
The first digit is 7 in the real answer of 74.5