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enyata [817]
3 years ago
5

How many meters are equal to 4 kilometers? Use the pattern in the number of zeros of the product when multiplying by a power of

10 to help you.
Mathematics
2 answers:
yuradex [85]3 years ago
4 0

Answer:

4000

Step-by-step explanation: hi! the formula is to multiply how many kilos by 1000! so 4 kilos equals 4000 meters

7nadin3 [17]3 years ago
3 0

Answer:

4000

Step-by-step explanation:

Multiply the length value by 1000

4×1000=4000

There are 1000 meters in one kilometer

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Step-by-step explanation:

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3 years ago
A rocket is launched from a tower what time will the rocket reach its max
Lena [83]

Answer:

Step-by-step explanation:

A science class designed a ball launcher and tested it by shooting a tennis ball up and off the top of a 15-story building. They determined that the motion of the ball could be described by the function: h(t) = -16t2 + 144t + 160, where ‘t’ represents the time the ball is in the air in seconds and h(t) represents the height, in feet, of the ball above the ground at time t.

a) Graph the function h(t) = -16t2 + 144t + 160 (see below)

      b) What is the height of the building?

The height of the building is also the height of the tennis ball before it is launched into the air. This occurs when t=0 so substitute 0 for t and you get:

H(0) = -16(0)2 + 144(0) + 160

The height of the building is 160 feet.

 c) At what time did the ball hit the ground?

The ball hits the ground when the height is 0. Therefore, we are looking for a solution to: -16t2 + 144t + 160 = 0

Use the quadratic formula or put this into a calculator. The solution is t=10 and -1, but only 10 makes sense. Therefore, the ball hits the ground at 10 seconds.

  d) At what time did the ball reach its maximum height?

You can put this into the calculator or you can realize that the maximum height is also

− the vertex. The x-value (‘t’ in this case) is 2

−144

which is (2)(−16) = 4.5.

Therefore, the ball reached its maximum height at 4.5 seconds.

   e) What is the maximum height of the ball?

We calculated the time of the maximum height (4.5 seconds). Therefore, substitute 4.5 into the function to find the maximum height.

-16(4.5)2 + 144(4.5) + 160

The maximum height is 484 feet.

5 0
2 years ago
A pancake recipe calls for 4 cups of flour and 3 cups milk.does the recipe calling for 2 cups flour and 1.5 cup milk use the sam
kramer
Yes because if you take 4:3 it equals out to be 2:1.5
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3 years ago
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4 0
3 years ago
Sachi takes 10 rounds of a rectangular park, 50 m long and 20 m wide. Find the total distance covered by him.
PSYCHO15rus [73]

Answer:

700 meters

Step-by-step explanation:

4 0
3 years ago
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