Answer:
The distance point between (-10, -7) and (-8, 1) is 6
Step-by-step explanation:
Answer:
40+45
Step-by-step explanation:
17x5 is 85
Answer:

Step-by-step explanation:
The expression for the salt in the barrel is:

The quantity of salt in the barrel after 3 minutes is:
![Q(3\,min) = 6\cdot [1-e^{-0.02\cdot (3\,min)}]](https://tex.z-dn.net/?f=Q%283%5C%2Cmin%29%20%3D%206%5Ccdot%20%5B1-e%5E%7B-0.02%5Ccdot%20%283%5C%2Cmin%29%7D%5D)

The middle is a square with side length of 12cm
Area of the square = 12 x 12 = 144 cm^2
There are 4 triangles with base of 13cm and height of 8 cm
Area of triangle = 1/2 x base x height
Area = 1/2 x 12 x 8 = 48cm^2 each
48 x 4 = 192 cm^2
Total area = 144 + 192 = 336 cm^2