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sineoko [7]
4 years ago
6

Help would be appeeiciated

Mathematics
1 answer:
ser-zykov [4K]4 years ago
6 0
Filling in the given information, you are asked to find "r" from
  64π = 4πr²

Dividing by 4π gives
  16 = r²

And taking the square root tells you
  4 = r

The appropriate choice is ...
  C.   4
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Which of the following is an irrational number?
I am Lyosha [343]

Hi!

<h3>An irrational number is a number that cannot be written as a ratio or a fraction. </h3><h3>Let's go through each answer. </h3>
  • A. √0.036

= 0.18973666...

<u>This is irrational, because it repeats forever.</u>

  • B. 7.2525

<u>This is rational, because 2525 repeats in a pattern.</u>

  • C. √1

= 1

<u>This is rational. (1/1)</u>

  • D. 10

<u>This is rational (10/1)</u>

<h2>The answer is A. √0.036.</h2>

Hope this helps! :)

-Peredhel

7 0
3 years ago
Daredevil Danny takes a practice jump as shown on the graph below. Complete the steps to determine the equation for the paraboli
solniwko [45]

Answer:

Step 4

part a: no answer yet still having trouble showing my work

part b:

-0.125(x-24)^2+50

-0.125(x-24)(x-24)+50

-0.125(x^2-24x-24x+576)+50

-0.125(x^2-48x+576)+50

-0.125x^2+6x-75+50

-0.125x^2+6x-22

a=-0.125

b=6

c=-22

part c: yes he went through

part d:

plug in roots (4,0) and (44,0)

if x is 4 and y is 0

0=-0.125(4)^2+6(4)-22

0=-2+24-22

0=-2+2

0=0

if x=44 and y=0

0=-0.125(44)^2+6(44)-22

0=-242+264-22

0=-242+242

0=0

5 0
4 years ago
Read 2 more answers
HELP FAST I'LL MARK YOU BRAINLIEST What is an equation of the line that passes through the point (−2, 3) and is perpendicular to
igomit [66]

Answer: y = -2/3x + 5/3

Step-by-step explanation:

  • The slope of a perpendicular line is opposite reciprocal --> -2/3
  • Using point given (-2, 3), find b.
  • 3 = -2(-2/3) + b
  • 3 = 4/3 +b
  • 5/3 = b

5 0
3 years ago
A right triangle has sides of length 3, 4, and x .Find x if it is the hypotenuse
Ulleksa [173]
<h3>Answer:  D) 5</h3>

Work Shown:

a = 3 and b = 4 are the two legs

c = x is the unknown hypotenuse

Use the pythagorean theorem to solve for c

a^2 + b^2 = c^2

3^2 + 4^2 = c^2

9 + 16 = c^2

25 = c^2

c^2 = 25

c = sqrt(25)

c = 5

4 0
3 years ago
Can someone show me way of solving this​
erma4kov [3.2K]

Step-by-step explanation:

f(x) =  ln( \frac{1}{x} )

To find the derivative, notice we have a function 1/x inside of another function, ln(x)

We use what we call the chain rule,

It states that

derivative of a '

\frac{d}{dx} f(g(x)) =  f '(g(x)) \times \: g '(x)

Here f is ln(x)

f is 1/x

So first, we know that

\frac{d}{dx} ( ln(x)  =  \frac{1}{x}

so

f'(g(x)) =  \frac{1}{ \frac{1}{x} }

We know that

g'(x) =  - \frac{1}{ {x}^{2} }

So we have

x \times  -  \frac{1}{ {x}^{2} }  =   \frac{ - 1}{x}

4 0
2 years ago
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