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Serga [27]
2 years ago
14

) How long does he travel at 30 km/h, if he travels 1.2 h at 20 km/h?​

Mathematics
1 answer:
GREYUIT [131]2 years ago
4 0

Step-by-step explanation:

please mark me as brainlest

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A value of 500 increases by 12%
Blizzard [7]
Value of 500 increased by 12% is 560
4 0
2 years ago
Square root of 244 by division method
navik [9.2K]

Answer:

The square root of 244 is 15.62 ( up-to 2 decimal places)

Step-by-step explanation:

Following is the division method for square root of 244 with rules as follows:

  • Make pairs of the given digit starting from right (unit place). They will be calculated one by one as formed in pairs/singles.
  • Digit added for divisor and quotient will be same at each step.
  • Each next dividend will be formed by subtracting product of divisor and quotient from first digit/pair.
  • Each next divisor will be formed by taking two times of previous quotient and annexing it with suitable digit that gives equal to or less than the dividend.

Following solution gives square root of 244:

I hope it will help you!

7 0
3 years ago
HELP ME ASAP PLEASE
vfiekz [6]

Answer:

144.44

Step-by-step explanation:

C = 2 x π x r .      C = 2 x 3.14 x 23  = 144.44

5 0
3 years ago
Helpppppp pleaseeeeee !!!!!!!!! !!!!
Sergio [31]

Given:

The function is:

f(x)=6x-3

To find:

The inverse of the given function, then draw the graphs of function and its inverse.

Solution:

We have,

f(x)=6x-3

Step 1: Substitute f(x)=y.

y=6x-3

Step 2: Interchange x and y.

x=6y-3

Step 3: Isolate variable y.

x+3=6y

\dfrac{x+3}{6}=y

Step 4: Substitute y=g(x).

\dfrac{x+3}{6}=g(x)

Therefore, the inverse of the given function is g(x)=\dfrac{x+3}{6} and the graphs of these functions are shown below.

8 0
2 years ago
The diameter of a iron sphere is 8 cm. It is beaten and drawn into a wire with a diameter of 2 mm. Find the length of the wire.
djyliett [7]

Answer : The length of the wire is, 8533 cm

Step-by-step explanation :

As the iron sphere is beaten and drawn into a wire. That means, their volume will be equal.

Volume of iron sphere = Volume of cylindrical wire

The formula will be:

\frac{4}{3}\pi r_1^3=\pi r_2^2h

where,

r_1 = radius of sphere = \frac{Diamtere}{2}=\frac{8cm}{2}=4cm

r_2 = radius of cylindrical wire = \frac{Diamtere}{2}=\frac{2mm}{2}=1mm=0.1cm

h = height of cylindrical wire or length of wire

Now put all the given values in the above formula, we get:

\frac{4}{3}\pi r_1^3=\pi r_2^2h

\frac{4}{3}\times r_1^3=r_2^2h

\frac{4}{3}\times (4)^3=(0.1)^2h

h=8533.33cm\approx 8533cm

Therefore, the length of the wire is, 8533 cm

6 0
3 years ago
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