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3 years ago

What is the circumference of a circle with radius 3 cm to the nearest hundredth

Mathematics

2 answers:

elena-s [515]3 years ago

8 0

Answer:

18.84

Step-by-step explanation:

Radius is 3 so you get diameter 6 circumference is diameter times pi/3.14. 6x3.14=18.84

Ksju [112]3 years ago

3 0

Answer:

see below

Step-by-step explanation:

The circumference of a circle is given by

C = 2*pi*r

C = 2* pi *3

C = 6 pi

The value depends on whether you use 3.14 for pi or the pi button

3.14 = 18.84

pi button 18.85

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Answer:

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Step-by-step explanation:

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3 years ago

For the real-valued functions, find the composition and specify its domain using interval notation.

Helen [10]

Answer:

Composition: $f(x)\,^o\,h(x)=4\,\sqrt{x+4} -1$

Domain = { $x\,/\,x\geq \,-4$ }

Step-by-step explanation:

Given

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The requested composition becomes:

$f(x)\,^o\,h(x)=f(h(x))\\f(x)\,^o\,h(x)=f(\sqrt{x+4} )\\f(x)\,^o\,h(x)=4\,\sqrt{x+4} -1$

Then the Domain consists of all Real x-values for which the function is defined. In this case, the function is defined for all x-values for which the square root is defined, that is all x values for which:

$x+4\geq \,0$ (so the square root is defined in the Real number system)

This means $x\geq \,-4$

The Domain is then all the Real x-values such that $x\geq \,-4$

6 0

3 years ago

The low temperature on a certain day is 51°F. The low temperature is 17°F lower than the high temperature, h. Which equation can

Elina [12.6K]

Answer

You would add 17 to 51 so it would be 68 degrees

Step-by-step explanation:

3 0

3 years ago

50 points.........

miskamm [114]

Answer:

Step-by-step explanation:

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3 years ago

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