Answer:
- 1 pound- $4.7
- 2 pounds- $9.4
- 3 pounds- $14.1
- 4 pounds- $18.8
Step-by-step explanation:
Just hardware's prices are 0.30 greater per pound, so the equation would be y=4.7x. Substitute x in for each of the values to get the prices above.
Answer:hello
Step-by-step explanation:
Answer:
3 - 6 = -3(1 - 0)
Step-by-step explanation:
To write an equation of point-slope from two points, first you need the slope.
To find slope, find the change in y over the change in x.
- (0,6) y = 6 and x = 0
- (1,3) y = 3 and x = 1
The change in y over change is x means (y2 - y1) / (x2 - x1)
change in y: -3
change in x: 1
slope = -3/1 or -3
Now that we have slope we can start the point-slope equation.
Point-slope equation: y2 - y1 = m(x2 -x1)
[<em>m</em><em> </em>means slope]
Finally, the point slope equation for these points is: 3 - 6 = -3(1 - 0)
cylindrical-shaped aquarium is to be filled with water for the newly bought salt water fishes. How much salt water is needed if the aquarium has a 2 ft radius of its base and a height of 3 ft?
Volume = πr²h
V = (3.14) (2)² (3)
V = (3.14) (4) (3)
V = 37.68 ft³
37.68 ft³ of salt water is needed to fill the cylindrical aquarium.
Mr. Lee is buying a spherical water tank for his tomato plantation. How much water could be stored if the water tank has a radius of 2 meters?
Volume = (4/3) πr³
V = (4/3) (3.14) (2)³
V = (4/3) (3.14) (8)
V = (4/3) (25.12)
V = 33.493 m³
Mr. Lee can store 33.493 m³ of water in the spherical tank.
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