Answer:
D
Step-by-step explanation:
A = (pi)(r)^2
A = (3.14)(3.7)^2
A= ~43
Answer:
From the figure, we´ll use the ratio of sin74
sin74=x/16
x=16/sin74
x=16.64
OAmalOHopeO
Answer:
The correct answer is 1
Step-by-step explanation:
I hope this helps with your question :)
The coordinates of point D is given as
![(x,y)=(-4,1)](https://tex.z-dn.net/?f=%28x%2Cy%29%3D%28-4%2C1%29)
Since the question asks to get two points sharing the same x-coordinate as D, we will move the points along the y-axis.
Therefore, we will add and subtract 7 units from the y-axis.
Let the first point be A. The coordinates for A will be
![\begin{gathered} (x,y)=(-4,1+7) \\ (x,y)=(-4,8) \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%20%28x%2Cy%29%3D%28-4%2C1%2B7%29%20%5C%5C%20%28x%2Cy%29%3D%28-4%2C8%29%20%5Cend%7Bgathered%7D)
Let the second point be B. The coordinates will be
![\begin{gathered} (x,y)=(-4,1-7) \\ (x,y)=(-4,-6) \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%20%28x%2Cy%29%3D%28-4%2C1-7%29%20%5C%5C%20%28x%2Cy%29%3D%28-4%2C-6%29%20%5Cend%7Bgathered%7D)
We can plot the graph as shown below:
9514 1404 393
Answer:
12 minutes
Step-by-step explanation:
Let c and h represent the filling times for the cold and hot taps, respectively. When the cold tap is 1/2 open, we presume that means the filling time becomes 2c.
In terms of baths per minute, the relationships are ...
1/c + 1/h = 1/3
1/(2c) +1/h = 1/(3 +1.8) . . . . . 1:48 min:sec is 1.8 minutes
Subtracting the first equation from twice the second, we get ...
2(1/(2c) +1/h) -(1/c +1/h) = 2(1/4.8) -(1/3)
1/h = 2/4.8 -1/3 = 1/12
h = 12
It takes the hot tap 12 minutes to fill the tub alone.