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3 years ago

7

A starfish's top speed is approximately 161 centimeters per minute. What is this speed to the nearest centimeter per second? plz

help due Tuesday!.

2 answers:

myrzilka [38]3 years ago

8 0

It would be 3 cm per second. You need to divide the 161 cm/min by 60 (60 sec + 1 min) 161 / 60 = 2.68333.., which is rounded to 3 cm/sec.

Papessa [141]3 years ago

6 0

2.7 cm per second. Because it’s 161 divided by 60

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Musya8 [376]

Answer:

SA = 967.6 cm²

Step-by-step explanation:

Surface Area of cylinder = $2\pi r h + 2\pi r^2$

<u><em>Where r = 7 cm, h = 15 cm</em></u>

=> SA = 2(3.14)(7)(15)+2(3.14)(7)²

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2 years ago

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Can someone please help me? I don't understand question d.

Sedaia [141]

Answer:

Step-by-step explanation:

From the previous answers you know the angles and side lengths of the triangle:

α = 60°

Ф = 30°

and the side lengths:

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Remember:

sin = opposite / hypotenuse

cos = adjacent / hypotenuse

tan = opposite / adjacent

Now you can read off from the triangle:

sin 30° = 1/2

cos 60° = 1/2

sin 60° = √3/2

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3 years ago

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Rashid [163]

Answer:

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Step-by-step explanation:

<u>Step 1: Distribute</u>

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Answer: pool B has a greater circumference.

Step-by-step explanation:

The formula for determining the circumference if a circle is expressed as

Circumference = 2πr

Where

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Radius of pool B = 29.46/2 = 14.73 meters

The circumference of pool B is

2 × 3.14 × 14.73 = 92.5 meters

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3 years ago

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Rom4ik [11]

12 cm:102 ft
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