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sweet [91]
2 years ago
7

a sound is sent at the bottom of a pond if echo is heard after 6 seconds calculate the depth of the pond .the speed of sound I'm

water is 1498m/s​
Mathematics
1 answer:
Mama L [17]2 years ago
5 0

Answer:

Depth of the pond: 4494 m

Explanation:

  • if echo is heard after 6 seconds, it takes 3 seconds to reach to bottom of pond
  • so time will be 3 seconds and speed given 1498 m/s

Steps:

  • distance = speed * time
  • distance = 1498 * 3
  • distance = 4494 m
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Answer:

Step-by-step explanation:

5 2/3

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3 years ago
Please someone answer ASAP!!
Nina [5.8K]

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3 years ago
La finca de Federico tiene tiene un área de 576 m2, En ella ha sembrado naranja y café, 3/8 de la finca están sembrados de naran
Vanyuwa [196]

Answer:

El área de la finca que está sembrada por café es 360 m².

Step-by-step explanation:

La finca de Federico tiene tiene un área de 576 m². \frac{3}{8} de la finca están sembrados de naranjas. Entonces, el área de la finca que está sembrada por naranjas se calcula mediante:

576 m²* \frac{3}{8} = 216 m²

Sabiendo que el resto de la finca esta sembrada de café, esta área se calcula mediante la diferencia del área total de la finca y el área sembrada por naranjas:

576 m² - 216 m²= 360 m²

<u><em>El área de la finca que está sembrada por café es 360 m².</em></u>

6 0
3 years ago
Cot^2x csc^2x + 2 csc^2x –cot^2 = 2
kow [346]

Answer:

x = π/2 + πk

Step-by-step explanation:

cot² x csc² x + 2 csc² x − cot² x = 2

Multiply both sides by sin² x:

cot² x + 2 − cos² x = 2 sin² x

Add cos² x to both sides:

cot² x + 2 = 2 sin² x + cos² x

Pythagorean identity:

cot² x + 2 = sin² x + 1

Subtract 1 from both sides:

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Pythagorean identity:

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Multiply both sides by sin² x:

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sin x = ±1

Solve for x:

x = π/2 + 2πk, 3π/2 + 2πk

Which simplifies to:

x = π/2 + πk

4 0
3 years ago
the lions won 16 games last year. this year the lions won 20 games. what is the percent increase in number of games the lions wo
jarptica [38.1K]
Last year won the lions 16 games last year and into this year the Lions won 20 games.

as the percentage increase is:

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(20/4) / (16/4)

5/4
<span>
1.25 (125%)</span>
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