The whole wall area including the window is 150 ft squared (15 ft x 10 ft). The window is 50 square feet (5 x 10). Take the whole area and subtract the window area and you have 100 sq ft thats paintable. One can is 50 sq ft so 100/50 is 2 cans of paint needed. Your answer is H.
Answer:
1. last choice
2. first choice
Step-by-step explanation:
<h3><u>First</u><u> </u><u>Image</u></h3>
The reason why it is the last choice because when times keep going as distance also keeps increasing as well. But the last choice says that run at the end of track then turn around and run back. That means there must be a decreasing distance and a maximum value as well.
Therefore the only with max point/vertex is the absolute value which matches the last choice.
<h3><u>Second</u><u> </u><u>Image</u></h3>
First choice because the car straight forwards without any change. The car runs with a steady speed but the distance will keep changing without any change of distance.
So the answer is first choice.
D = rt, Distances Equal
72t = 90(t-1)
90 = 18t
90/18 = t = 5hr
second car catch up to the first in 4hrs
Answer:
![a.\ m=2,\ \text{the line is rising}\\\\b.\ m=-\dfrac{5}{4},\ \text{the line is falling}\\\\c.\ m=0,\ \text{the line is horizontal}\\\\d.\ m\ is\ unde fined,\ \text{the line is vertical}](https://tex.z-dn.net/?f=a.%5C%20m%3D2%2C%5C%20%5Ctext%7Bthe%20line%20is%20rising%7D%5C%5C%5C%5Cb.%5C%20m%3D-%5Cdfrac%7B5%7D%7B4%7D%2C%5C%20%5Ctext%7Bthe%20line%20is%20falling%7D%5C%5C%5C%5Cc.%5C%20m%3D0%2C%5C%20%5Ctext%7Bthe%20line%20is%20horizontal%7D%5C%5C%5C%5Cd.%5C%20m%5C%20is%5C%20unde%20fined%2C%5C%20%5Ctext%7Bthe%20line%20is%20vertical%7D)
Step-by-step explanation:
The formula of a slope:
![m=\dfrac{y_2-y_1}{x_2-x_1}](https://tex.z-dn.net/?f=m%3D%5Cdfrac%7By_2-y_1%7D%7Bx_2-x_1%7D)
If
m > 0, then a line is rising
m < 0, then a line is falling
m = 0, then a line is horizontal
m is undefined, then a line is vertical
<h2>a.</h2>
(2, 1) and (4, 5)
![m=\dfrac{5-1}{4-2}=\dfrac{4}{2}=2>0\to\text{rising}](https://tex.z-dn.net/?f=m%3D%5Cdfrac%7B5-1%7D%7B4-2%7D%3D%5Cdfrac%7B4%7D%7B2%7D%3D2%3E0%5Cto%5Ctext%7Brising%7D)
<h2>b.</h2>
(-1, 0) and (3, -5)
![m=\dfrac{-5-0}{3-(-1)}=\dfrac{-5}{4}=-\dfrac{5}{4}](https://tex.z-dn.net/?f=m%3D%5Cdfrac%7B-5-0%7D%7B3-%28-1%29%7D%3D%5Cdfrac%7B-5%7D%7B4%7D%3D-%5Cdfrac%7B5%7D%7B4%7D%3C0%5Cto%5Ctext%7Bfalling%7D)
<h2>c.</h2>
(2, 1) and (-3, 1)
![m=\dfrac{1-1}{-3-2}=\dfrac{0}{-5}=0\to\text{horizontal}](https://tex.z-dn.net/?f=m%3D%5Cdfrac%7B1-1%7D%7B-3-2%7D%3D%5Cdfrac%7B0%7D%7B-5%7D%3D0%5Cto%5Ctext%7Bhorizontal%7D)
<h2>d.</h2>
(-1, 2) and (-1, -5)
![m=\dfrac{-5-2}{-1-(-1))}=\dfrac{-7}{0}\ \text{UNDEFINED}\to\text{vertical}](https://tex.z-dn.net/?f=m%3D%5Cdfrac%7B-5-2%7D%7B-1-%28-1%29%29%7D%3D%5Cdfrac%7B-7%7D%7B0%7D%5C%20%5Ctext%7BUNDEFINED%7D%5Cto%5Ctext%7Bvertical%7D)
Answer:
5'4" or 64 inches
Step-by-step explanation: