Answer:
3.7
Step-by-step explanation:
each tick represents .1 unit
Answer:
33.5
-by-step explanation:
8.5 + (12 + 4) × 2 - 7
Use PEMDAS ( I think this is right hope it helps!)
Answer: 61 people have worked on this worksheet so far.
Step-by-step explanation:
Given: 80% people try to do this ratio and proportion worksheet find they need some help with the problems.
Let x be the total number of people worked on this worksheet so far.
People need some help with the problems. =80% of x = 0.80x
As per given,
0.80x=49
![\Rightarrow x=61.25\approx61](https://tex.z-dn.net/?f=%5CRightarrow%20x%3D61.25%5Capprox61)
Hence, 61 people have worked on this worksheet so far.
1. X=-2 x=1 x=5/2
2. X=0 x=-1/5 x=4/3 x=1
3.x>-2
4.X>_8
Answer:
![x^2-8x=0](https://tex.z-dn.net/?f=x%5E2-8x%3D0)
Step-by-step explanation:
the quadratic function should be as follows:
![x^2-8x=0](https://tex.z-dn.net/?f=x%5E2-8x%3D0)
Now let's confirm that the zeros of the function are 0 and 8
![x^2-8x=0=x(x-8)=0](https://tex.z-dn.net/?f=x%5E2-8x%3D0%3Dx%28x-8%29%3D0)
Therefore we can see that if x = 0
![0^2*8*0=0\\0=0](https://tex.z-dn.net/?f=0%5E2%2A8%2A0%3D0%5C%5C0%3D0)
the equation is fulfilled
And we also have ![(x-8)](https://tex.z-dn.net/?f=%28x-8%29)
for this expresion to be equal to zero:
![x-8=0\\x=8](https://tex.z-dn.net/?f=x-8%3D0%5C%5Cx%3D8)
thus, if x = 8
![8^2-8*8=0\\64-64=0\\0=0](https://tex.z-dn.net/?f=8%5E2-8%2A8%3D0%5C%5C64-64%3D0%5C%5C0%3D0)
the equation is also fulfilled
The zeros of the quadratic function
are 0 and 8.