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Stella [2.4K]
3 years ago
11

A soup can that is a cylinder has a radius of 2x-1 and a height of 3x. What is the surface area of the soup can?

Mathematics
1 answer:
AleksAgata [21]3 years ago
3 0
SA = ? 
<span>r = 2x - 1 </span>
<span>h = 3x </span>

<span>Then, </span>

<span>SA = 2π(2x - 1)² + 2π(2x - 1)(3x) </span>
<span>==> 2π(4x² - 4x + 1) + 6πx(2x - 1) </span>
<span>==> 8πx² - 8πx + 2π + 12πx² - 6πx </span>
<span>==> 20πx² - 14πx + 2π units² </span>
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Based on the areas of the squares determine whether the triangle shown is a right triangle
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Answer:

The answer is "triangle ABC is not a right triangle".

Step-by-step explanation:

For a right-angle triangle:

Its square upon on longest or triangular edges is equivalent to the total of the other two squares

Its parameters indicated throughout the question are;

Square of lateral length A = 7 \ inch^2

The square of lateral length B = 18 \ inch^2

The square of lateral length C=27\  inch^2

Thus, the longest side is C, as well as the size inch^2 of the squares of its two sides, is7 + 18 = 25 \ inch^2, lower than square C = 27\ inch^2, hence, the ABC triangle is not correct. Its longest edge is consequently C.

5 0
2 years ago
i'm giving brainiest right now so first one who has correct gets brainiest!!The length of one side of a square pond is 15 feet.
marysya [2.9K]
It’s easiest to think about it this way:

If the pond is 15 feet wide, then adding 3 feet to each side would increase the side length to the square by six feet (3 feet on each side). This makes the area within the square equal to 18x18 feet, or 324 square feet. But, this isn’t the area of the sidewalk, it’s the area of the sidewalk plus the area of the pool.

The pool is fifteen feet wide, which means that it has an area of 225 square feet. So, to find the area of the side walk, we can subtract the area of the pool from the area of the pool and sidewalk, which will give us the area of the sidewalk by itself.

324-225=99 square feet.

The pool has an area of 225 square feet, and the sidewalk has an area of 99 feet.
3 0
3 years ago
Simplify the expression 9(h - 1)
Svetach [21]

Answer:

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Step-by-step explanation:

9(h - 1)

<em>distribute</em>

(9 * h) + (9 * - 1)

9h + (9 * - 1)

9h + -9

9h - 9

4 0
2 years ago
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almond37 [142]

Answer:

1, 120

Step-by-step explanation:

    3.2 x 107 = 342.4

                                               

+   7.2 x 108 = 777.6

_____________________

                       1, 120                          

8 0
3 years ago
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GrogVix [38]

y = 1/2x - 2

Look at Desmos Math pic i sent.


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