3 years ago

If the smallest angle of rotation for a regular polygon is 18°, how many sides does polygon have?

Mathematics

1 answer:

lora16 [44]3 years ago

4 0

Answer:

20 sides.

Step-by-step explanation:

The external angles of a polygon sum to 360 degrees.

So it's 360/18 = 20.

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Step-by-step explanation:

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3 years ago

An evergreen nursery usually sells a certain shrub after 5 years of growth and shaping. The growth rate during those 5 years is

ivanzaharov [21]

Answer:

$h(t) = 0.75t^2 + 4t + 12$

Step-by-step explanation:

The equation given calculates the derivative of the height in relation to the time, that is, the rate of change of the height. To find the equation for the height, we need to integrate this equation:

$dh/dt = 1.5t + 4$

Multiplying both sides by 'dt', we have:

$dh = (1.5t + 4)dt$

Using the integral in both sides:

$\int dh = \int (1.5t + 4) dt$

$h = 0.75t^2 + 4t + h(0)$

$h = 0.75t^2 + 4t + 12$

So the height after t years is represented by this equation:

$h(t) = 0.75t^2 + 4t + 12$

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3 years ago

Marissa borrowed $5,500 from the bank and paid $1,100 in interest. To identify the interest rate, she needed to find what percen

blagie [28]

Answer:

0.2 which is 20%

Step-by-step explanation:

divide $5,500 from $1,100. Which equals 0.2 or 20%.

I hope this helped if not im am so sorry

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3 years ago

The length of giselles arm is 27 inches.The length of her lower arm is 17 inches.About what percent of giselles arm is her lower

elena-s [515]

27 divided by 100 is 0.27 so 0.27 is one percent now 17 divided by 0.27 is about 62.963 so 17 is 62.963% of 27 hope this helped.

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3 years ago

What is the solution for 3x – 2y = –9

Natasha_Volkova [10]

Answer: x=3-2y/3

Step-by-step explanation:

You just have to try to isolate one variable

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3 years ago

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