Answer: b maybe
Step-by-step explanation:
93.6
78*0.20=15.6
78+15.6=93.6
The formula for the distance between points (x₁,y₁) and (x₂,y₂):
![d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}](https://tex.z-dn.net/?f=d%3D%5Csqrt%7B%28x_2-x_1%29%5E2%2B%28y_2-y_1%29%5E2%7D)
![(-3,-2) \\ x_1=-3 \\ y_1=-2 \\ \\ (0,2) \\ x_2=0 \\ y_2=2 \\ \\ d=\sqrt{(0-(-3))^2+(2-(-2))^2}=\sqrt{3^2+4^2}=\sqrt{9+16}=\sqrt{25}=5](https://tex.z-dn.net/?f=%28-3%2C-2%29%20%5C%5C%0Ax_1%3D-3%20%5C%5C%20y_1%3D-2%20%5C%5C%20%5C%5C%0A%280%2C2%29%20%5C%5C%0Ax_2%3D0%20%5C%5C%20y_2%3D2%20%5C%5C%20%5C%5C%0Ad%3D%5Csqrt%7B%280-%28-3%29%29%5E2%2B%282-%28-2%29%29%5E2%7D%3D%5Csqrt%7B3%5E2%2B4%5E2%7D%3D%5Csqrt%7B9%2B16%7D%3D%5Csqrt%7B25%7D%3D5)
The distance is
5 units.
Answer:
The third option (the one that looks like a V but isn't sideways.
To find a function use the vertical line test. To do that you see if a vertical line passes through one or multiple points. If it passes through more than one point anywhere then it isn't a function.
<h3><u>Question:</u></h3>
Serena uses chalk to draw a straight line on the sidewalk. The line is 1/2 ft long. She wants to divide the line into sections that are each 1/8 ft long. How many sections will the line be divided into?
<h3><u>Answer:</u></h3>
The number of sections that the line is divided is 4
<h3><u>Solution:</u></h3>
Given that, Serena uses chalk to draw a straight line on the sidewalk
The line is 1/2 ft long. She wants to divide the line into sections that are each 1/8 ft long
From given,
![Total\ length\ of\ line = \frac{1}{2} \text{ feet }\\\\Length\ of\ each\ section = \frac{1}{8} \text{ feet }](https://tex.z-dn.net/?f=Total%5C%20length%5C%20of%5C%20line%20%3D%20%5Cfrac%7B1%7D%7B2%7D%20%5Ctext%7B%20feet%20%7D%5C%5C%5C%5CLength%5C%20of%5C%20each%5C%20section%20%3D%20%5Cfrac%7B1%7D%7B8%7D%20%5Ctext%7B%20feet%20%7D)
To find: Number of sections can be made
The number of sections that can be made is found by dividing the total length of line by length of each section
![\text{Number of sections } = \frac{\text{Total length of line}}{\text{length of each section}}](https://tex.z-dn.net/?f=%5Ctext%7BNumber%20of%20sections%20%7D%20%3D%20%5Cfrac%7B%5Ctext%7BTotal%20length%20of%20line%7D%7D%7B%5Ctext%7Blength%20of%20each%20section%7D%7D)
Substituting the values, we get,
![\text{Number of sections } = \frac{\frac{1}{2}}{\frac{1}{8}}\\\\\text{Number of sections } = \frac{1}{2} \times \frac{8}{1}\\\\\text{Number of sections } = 4](https://tex.z-dn.net/?f=%5Ctext%7BNumber%20of%20sections%20%7D%20%3D%20%5Cfrac%7B%5Cfrac%7B1%7D%7B2%7D%7D%7B%5Cfrac%7B1%7D%7B8%7D%7D%5C%5C%5C%5C%5Ctext%7BNumber%20of%20sections%20%7D%20%3D%20%5Cfrac%7B1%7D%7B2%7D%20%5Ctimes%20%5Cfrac%7B8%7D%7B1%7D%5C%5C%5C%5C%5Ctext%7BNumber%20of%20sections%20%7D%20%3D%204)
Thus number of sections that the line is divided is 4