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sdas [7]
3 years ago
15

Show two different approaches to calculating the sale cost of a jacket, regularly $200, which has a discount of 30%. Include the

final answer for each method shown. Neglect sales tax for this problem.
Mathematics
1 answer:
Rainbow [258]3 years ago
4 0
I think the answer is 50 dollars more the amount
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How is the "subtraction method" used to derive the formula for volume of a cylinder?
NikAS [45]

Answer:

The subtraction method is used to find the volume of the cylinder by recalling that the volume of the cylinder consist of the volume of the cone and the volume of the sphere.

Step-by-step explanation:

In the subtraction method, we have that a cylinder of radius r, equal to that of a circle, and height 2·r consist of a cone of base radius r and height 2·r and a sphere of radius r as follows;

Volume or sphere of radius r = Volume of cylinder of radius r and height 2·r - Volume of cone of base radius r and height 2·r

∴ 4/3·π·r³ = Volume of cylinder of radius r and height 2·r  - 2/3·π·r³

Hence, volume of cylinder of radius r and height 2·r = 4/3·π·r³ + 2/3·π·r³ = 2·π·r³

Hence the subtraction method is used to find the volume of the cylinder by recalling that the volume of the cylinder consist of the volume of the cone and the volume of the sphere.

7 0
2 years ago
Consider the expression 5a + (-4b), where bis a negative number and a
Leona [35]

The sum is negative.

6 0
2 years ago
Help please I need the name of the polygon and the perimeter and area of the shape of numbers 42-47
sergij07 [2.7K]

42 - 47

Polygons are

triangle, trapezoid, triangle, parallelogram, rectangle and parallelogram

The area of triangles = 1/2 * base * haight.

Area of the parallelograms = height * base.

Area of rectangle= width * length

Area of trapezoid = 1/2 * (a + b) * height where a and b are the opposite parallel sides

The perimeters = sum of the sides of the polygons.

8 0
3 years ago
Check cashing companies
dezoksy [38]

Answer:

they usually cost nothing if you go through your bank

4 0
2 years ago
Pls slove this asap, i rlly nneed it
butalik [34]

Answer:

Each box is 15.99

Step-by-step explanation:

Just the divide the total cost by 6

3 0
2 years ago
Read 2 more answers
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