The weight (or mass) is irrelevant.

The period t = sqrt(2*pi*sqrt(l/g) where g is the acceleration due to gravity.

so t = 2*pi*sqrt(5/9.8) = 4.49 seconds.

Frequency = 1/period = 0.223 Hertz.

5 0

4 years ago

Where is each point located on the graph?

vredina [299]

-3 + 8i is in quadrant II

4i is on the vertical axis

6 is on the horizontal axis

5 - 2i is in the quadrant IV

3 0

3 years ago

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Please solve this proportion with steps (I'm stuck) (9x+6)/18= (20x+4)/3x

guapka [62]

$\frac{9x+6}{18}=\frac{20x+4}{3x}$

Cross multiply. Distribute...
$3x(9x+6)=18(20x+4)\\27x^2+18x=360x+72\\27x^2-342x-72=0\\3x^2-38x-8=0$

OH GOD IT'S A QUADRATIC
(our equation is in ax² + bx + c = 0 form. a=3. b= -38. c= -8.
plug these values into the quadratic formula and simplify.)
$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}=\frac{-(-38)\pm\sqrt{(-38)^2-4(3)(-8)}}{2(3)}=\frac{38\pm\sqrt{1444+96}}6\\\\\sqrt{1444+96}=\sqrt{1540}=\sqrt{4\times345}=2\sqrt{345}\\\\\frac{38\pm2\sqrt{345}}6=\boxed{x=\frac{19\pm\sqrt{345}}3}$

Approximate values for x: -0.20714 or 12.874

7 0

3 years ago

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HELPPPPPP!!!!!!Xavier asked 18 players on his baseball team whether they prefer using a wood or an aluminum bat. He used a calcu

Gala2k [10]

The answer is 2/9. the other three are terminating decimals. just use a calculator to divide 2 by 10. and 22 by 100 and so on. you’ll see that 2 divided by 9 is .2222222

5 0

3 years ago

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