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serg [7]
3 years ago
12

Cuál es la altura del cono si tiene un diámetro de 18 cm y un volumen de 1.696.464 cm3 ?

Mathematics
1 answer:
bogdanovich [222]3 years ago
7 0

Answer:

Altura = 20,000 cm

Step-by-step explanation:

V = (pi x r^2 x a)/3

1.696.464 = (3.14 x 9^2 x a) / 3

1.696.464 = 84,82 altura

1.696.464 / 84,82 = altura

a = 20,000cm

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a square has a side length of x. A rectangle has a length that is 4 inches longer than the square and a width that is 2 inches s
vodomira [7]

Answer:

Length of the rectangle is = 8 inches.

Step-by-step explanation:

Given :

Area of square = Area of the rectangle

According to the question:

Length of the square be 'x'.

Its area = (Side)*(Side) =x^2   ...equation (i)

Length of the rectangle = (x+4)

Width of the rectangle = (x-2)

Area of the rectangle =Length * Width

⇒(x+4)(x-2)=x^2-2x+4x-8

⇒x^2+2x-8          ...equation  (ii)

Equating both the equation as area of both the figure are equal.

⇒ x^2+2x-8=x^2

⇒ 2x-8=0     ...subtracting x^2 both sides

⇒ 2x=8           ...dividing both sides with 2

⇒ x=\frac{8}{2}=4 inches

Plugging the value of x=4 in the length of the rectangle.

We have,

⇒(x+4)=(4+4)=8

So the length of the rectangle = 8 inches.

4 0
3 years ago
If 12 children represents 12.5% of the people attending a concert, how many people are attending the concert
NeTakaya

96 people are attending the concert.

Step-by-step explanation:

Given,

Number of children at concert = 12

This represents 12.5% of the people attending concert.

Let,

p be the total people attending concert.

12.5% of p = 12

\frac{12.5}{100}*p=12\\0.125p=12

Dividing both sides by 0.125

\frac{0.125p}{0.125}=\frac{12}{0.125}\\p=96

96 people are attending the concert.

Keywords: percentage, division

Learn more about division at:

  • brainly.com/question/317601
  • brainly.com/question/306772

#LearnwithBrainly

7 0
3 years ago
Subtract 5x^2-2x-55x 2 −2x−5 from -2x^2-5x-7−2x 2 −5x−7.
leva [86]

Answer:

7x^2 -128x -19

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
6. Given two numbers 8 and 5:<br> Write "the distance between 8 and 5" as a mathematical expression.
egoroff_w [7]

Answer:

3

Step-by-step explanation:

5+3=8 and on a number line 5 and 8 and 3 numbers away

6 0
3 years ago
Read 2 more answers
A painter leans a 15 ft ladder against a building. The base of the ladder is 6 ft from the building. To the nearest foot, how hi
stiv31 [10]
Using the Pythagoras theorem 

15^2 = x^2 + h^2   where h = height of ladder on the nuiding

h^2 = 15^2 - 6^2  =  189

 = 13.75 ft to nearest hundredth
3 0
3 years ago
Read 2 more answers
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