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sveta [45]
3 years ago
10

What is the slant height if the surface area is 395.64 square meters? (Use 3.14 for π .)

Mathematics
1 answer:
Rudik [331]3 years ago
5 0
----------------------------------
Formula
----------------------------------
Surface area = πr² + πrl

----------------------------------
Find slanted height, h
----------------------------------
Surface area = πr² + πrh
395.64  = (3.14)(7)² + (3.14)(7)h
395.64 = 153.86 + 21.98h
21.98h = 395.64 - 153.86
21.98h = 241.78
h = 241.78 ÷ 21.98
h = 11m

----------------------------------------------
Answer: The slanted height is 11m
-----------------------------------------------
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Hey there!

Here is your answer:

<u><em>The proper answer to this question is option C"6"</em></u>

Reason:

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\frac{1}{2}×\frac{12}{1}=\frac{12}{2}÷2=\frac{6}{1} or 6!

<em>Therefore the answer is option C!</em>

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1. La suma de dos números es 115. El número mayor es dos veces más 22 unidades que el otro. Hallar
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De acuerdo con un sistema de ecuaciones, tiene-se que los números son 31 y 84.

----------------

  • En el sistema de ecuaciones, tiene-se que los números son x e y.
  • Suma de 115, o sea, x + y = 115
  • <u>El número mayor es dos veces más 22 unidades que el otro</u>, o sea, x = 2y + 22

----------------

Primero se encuenta el número menor, <u>reemplazando la segunda ecuación en la primera:</u>

x + y = 115

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----------------

El número mayor es dado en <u>función de el menor</u>, o sea:

x = 2y + 22 = 2(31) + 22 = 62 + 22 = 84

Los números son 31 y 84.

Otro problema resuelto por sistema de ecuaciones es dado en brainly.com/question/24637096

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