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3 years ago

Find the area of circle with a radius of 2 in exact terms

Mathematics

1 answer:

ss7ja [257]3 years ago

7 0

Answer:

12.56 (13 if rounded)

Step-by-step explanation:

A=pi x r squared

A=2 squared multiplied by pi

A=4 times pi

plug into calculator should be about 12.56

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Given f(x) = –2 – 4, find f(4).

harkovskaia [24]

Answer:

-6

Step-by-step explanation: 6 6 15 40

f(x) = –2 – 4, find f(4)

since there is NO x term in the function for ANY x

f(4) = –2 – 4 = -6

f(any x) = –2 – 4, find f(-∞ = x = ∞)

= -6

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2 years ago

6000 lb/day = how many t/wk

zavuch27 [327]

Answer:

Step-by-step explanation:

6000lbs x 7 days = 42000lbs

42000lbs / 2000lbs = 21 tons

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2 years ago

Read 2 more answers

Which of the following functions is graphed below?

kompoz [17]

Answer:

Step-by-step explanation:

vertex is (-3,-4)

so inside the absolute value bars need to be postive 3 and the four has to be -4.

6 0

2 years ago

What is the completely factored form of f(x)=x3+5x2+4x−6?

Gre4nikov [31]

$f(x)=x^3+5x^2+4x-6$
$f(-3)=(-3)^3+5(-3)^2+4(-3)-6=0\implies x+3\text{ is a factor of }f(x)$

Synthetic division yields

-3 | 1   5   4   -6
.    |      -3 -6    6
- - - - - - - - - - - - -
.    | 1   2 -2    0

which translates to

$\dfrac{x^3+5x^2+4x-6}{x+3}=x^2+2x-2$

with remainder 0. Now by the quadratic formula,

$x^2+2x-2=0\implies x=\dfrac{-2\pm\sqrt{2^2-4(1)(-2)}}2=-1\pm\sqrt3$

and so

$f(x)=x^3+5x^2+4x-6=(x+3)(x-(-1+\sqrt3))(x-(-1-\sqrt3))$

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2 years ago

What is the algebraic expression for the quotient of z and 3

Zielflug [23.3K]

The quotient of z and 3.

quotient = ÷

z/3

The answer is A.

4 0

3 years ago

Find the area of circle with a radius of 2 in exact terms​

Find the area of circle with a radius of 2 in exact terms