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joja [24]
3 years ago
15

Hi!

Mathematics
2 answers:
timofeeve [1]3 years ago
7 0

Answer:

A

Step-by-step explanation:

<em>Units of Lenght :</em>

  • <em>Km</em>
  • <em>Hm</em>
  • <em>Dam</em>
  • <em>m</em>
  • <em>dm</em>
  • <em>cm</em>
  • <em>mm</em>
  1. <em>   ÷10 for each step ↑</em>
  2. <em>   x10 for each step ↓</em>

7200 km = 7200.1000 m

1 h = 60 minutes

every minute has 60 s.

1 h = 60 x 60 s

\frac{7200}{1} km/h = \frac{7200.1000}{60.60} m/s

\frac{7200.1000}{60.60} = \frac{2.1000}{1}

2.1000 = 2000

Hope this helps ^-^

dimaraw [331]3 years ago
6 0

Answer:

A = 2000 m/s

Step-by-step explanation:

When you multiply a km/h with \frac{5}{18} , it converts to m/s.

So,

7200 × \frac{5}{18} = 2000 m/s

Hope this helps...

Please mark as Brainliest!!

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vredina [299]

Answer:

Step-by-step explanation:

Given that

The area of circle is 25π square unit

Area = 25π square unit

The area of a circle can be calculated using

Area = πr²

Where r is radius of the circle

Then, let find the radius of the circle

Area = πr²

25π = πr²

Divided Both side by π

25π / π = πr² / π

25 = r²

Take square root of both sides

√25 = √r²

5 = r

Then, the radius of the circle is 5 unit

Then, given that the angle subtended by the sector is 9π/10 rad

θ = 9π/10 rad

Then, we want to find the area of the sector

Area of a sector is calculated using

Area of sector = (θ / 360) × πr²

Area of sector = θ × πr² / 360

The formula is in degree let convert to radian

360° = 2π rad.

Then,

Area of sector = θ × πr² / 2π rad

Then,

Area of sector = θ × r² / 2

Area of sector = ½ θ•r²

Then, Area of the sector is

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A = ½ × (9π / 10) × 5²

A = (9π × 5²) / (2 × 10)

A = 225π / 20

A = 45π / 4

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3 0
3 years ago
19. If the polynomial P(x) = 27x^3 + 9x^2 – 3x – 10 is divided by 3x – 2, the remainder will be
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Answer:

D) 0

Step-by-step explanation:

Remainder is zero as 10 is fully divisible by 2.

<u>Proof</u>:

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4 0
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alisha [4.7K]
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olga_2 [115]

Answer:

El lugar donde la linterna, los bancos y los árboles se encuentran nuevamente está a 300 metros del punto de inicio.

Step-by-step explanation:

Los parámetros dados son;

El espacio entre las linternas = 30 metros.

El espacio entre los bancos = 20 metros.

El espacio entre los árboles = 50 metros.

Por lo tanto, tenemos, la ubicación donde la linterna, los bancos y los árboles se encuentran nuevamente, está dada por el mínimo común múltiplo de cada una de sus distancias de separación individuales como sigue;

      2   divide   30   20   50 {}  

{}      <u>5  divide    15    10    25</u>

{}                           3      2    5

El LCM = 2 × 5 × 3 × 2 × 5 = 300

El lugar donde la linterna, los bancos y los árboles se vuelven a encontrar está a 300 metros del punto de inicio.

6 0
3 years ago
How many cups in a gallon
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1 gallon = 16 cups

Hope it helps you.
5 0
3 years ago
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