3 years ago

The femur, or thigh bone, of an average human is 480 millimeters long. What is the length in meters?

Mathematics

1 answer:

zvonat [6]3 years ago

8 0

Answer:

0.048m

Step-by-step explanation:

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A lawn sprinkler sprays water 25 feet and moves back and forth through an angle of 150°. Which of the following is the best esti

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$\pi25 ^{2} \times \frac{150}{360}$
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Area is pi×r^2 and you times it by the fraction of the circle you have as its not a full circle.

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3 years ago

A population of bacteria grows by a factor of 1.32 in one hour. What is the hourly growth rate?

pantera1 [17]

SInce the 'growth factor' is 1.32, the 'growth rate' is .32 or 32%

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3 years ago

A number cube labeled 1 through 6 is rolled.

lbvjy [14]

Answer: 3/6 or 1/2 or 50%

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1 year ago

In the US Senate, there are 21 members on the Committee on Banking, Housing, and Urban Affairs. Nine of these 21 members are sel

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Answer:

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Step-by-step explanation:

The combination expression is used here

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3 years ago

2x² - 5x+1 has roots alpha and beta. Find alpha⁴+beta⁴ without solving the equation.

shepuryov [24]

Answer:

Step-by-step explanation:

$\alpha+\beta=\dfrac{5}{2} \\\\\alpha*\beta=\dfrac{1}{2} \\\\\alpha^2+\beta^2=\dfrac{21}{4} \ (see\ previous\ post)\\\\(\alpha+\beta)^4=\dfrac{625}{16} \\\\=\alpha^4+\beta^4+4*\alpha^3*\beta+6*\alpha^2*\beta^2+4*\alpha*\beta^3\\\\=\alpha^4+\beta^4+4*(\alpha*\beta)(\alpha^2+\beta^2)+6*\alpha^2*\beta^2\\\\\alpha^4+\beta^4=(\alpha+\beta)^4-4*(\alpha*\beta)(\alpha^2+\beta^2)-6*\alpha^2*\beta^2\\\\= \dfrac{625}{16} -4*\dfrac{1}{2} *\dfrac{21}{4} -6*(\dfrac{1}{2})^2 \\\\$

$= \dfrac{625}{16}- \dfrac{168}{16}-\dfrac{24}{16}\\\\\\= \dfrac{433}{16}$

7 0

3 years ago