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VLD [36.1K]
3 years ago
11

When Marla rounded 19.95 to the nearest tenth shi found the number changed to 20 is this correct explain

Mathematics
1 answer:
valentinak56 [21]3 years ago
7 0
Yes this is correct..the rule is: to round up if the number is over 50, round down if the answer is below fifty, like 44...
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The local public pool is a rectangle with two semicircles.
Reptile [31]

The area of the surface of the pool is 7322.64 m².

<h3>What is Area of rectangle?</h3>

The area of rectangle is product of length and its breadth.

i.e., length * breadth

Given: Length = 100 m, Width = 52 m and Diameter = 52 m

Area of rectangle,

= 100 × 52

= 5200 m²

Now,

Area of semicircle = 1/2 × πr²

=1/2 × 3.14 × 26²

= 1061.32 m²

Hence, area of the surface of the pool is

= 1061.32 + 1061.32 + 5200

= 7322.64 m²

Learn more about this concept here:

brainly.com/question/15461609

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Solve for y. 2/3+y−1/9=7/9 Enter your answer in the box 
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