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atroni [7]
3 years ago
5

Evaluate: (3)-3? Question 1 options: A-9 B-1/27 C 1/27

Mathematics
2 answers:
PIT_PIT [208]3 years ago
7 0
The answer is A or option one.

Hope This Helps and God Bless!
soldier1979 [14.2K]3 years ago
5 0
The answer to this question is A. 
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Find the volumes of the solids whose bases are bounded by the circle x^2 + y^2 = 9, with the indicated cross sections taken perp
labwork [276]

<em>x</em> ^2 + <em>y</em> ^2 = 9   =>   <em>y</em> = <em>y(x)</em> = ± √(9 - <em>x</em> ^2)

Each cross section would be a square with side length equal to the vertical distance between the upper and lower semicircles defined by <em>y(x)</em>, which is

√(9 - <em>x</em> ^2) - (- √(9 - <em>x</em> ^2)) = 2 √(9 - <em>x</em> ^2)

The area of each square section is the square of this length,

(2 √(9 - <em>x</em> ^2)) = 4 (9 - <em>x</em> ^2) = 36 - 4<em>x</em> ^2

We get the whole solid for -3 ≤ <em>x</em> ≤ 3, so integrating gives a volume of

\displaystyle\int_{-3}^3(36-4x^2)\,\mathrm dx=\boxed{144}

3 0
3 years ago
The tallest living man at one time had a height of 262 cm. The shortest living man at that time had a height of 68.6 cm. Heights
AysviL [449]

Answer:

more the z-score more will be the extreme. therefore tallest man has high extreme

Step-by-step explanation:

Formula for z-score: \frac{X-\mu }{\sigma}

where

X is height of tallest man

μ mean height

σ is standard deviation

z score for tallest is

z-score = \frac{ 262 - 175.32}{8.17} = 10.60

similarly for shortest man

z-score = \frac{68.6 - 175.32}{8.17} = - 13.06

more the z-score more will be the extreme. therefore tallest man has high extreme

6 0
3 years ago
Read 2 more answers
Let omega be a complex number such that omega^3 = 1. Find all possible values of {1}{1 + \omega} + {1}{1 + \omega^2}. Enter all
Norma-Jean [14]

Answer:

1 is Answer.

Step-by-step explanation

\frac{1}{1+omega^{2} } + \frac{1}{1+omega }\\

= \frac{(-1)*(omega + 1)}{omega^{2}  }

As we know that ω²+ω+1=0

Thus putting in above equation, we get

= \frac{1}{(-1)*omega } + \frac{1}{(-1)*omega^{2}  }

Rearranging and simplifying:

= \frac{-1}{omega } + \frac{-1}{omega^{2}  }

= \frac{(-1)*(omega + 1)}{omega^{2}  }

= \frac{(-1)*(- omega^{2} )}{omega^{2}  }

= 1 Answer

8 0
3 years ago
Multiply. <br> 8 1/2 -2 2/3
MrRissso [65]

Answer: -\frac{68}{3} or -22\ 2/3

Step-by-step explanation:

To solve this problem you must:

- Convert the mixed numbers to fractions, as following:

8\ 1/2=\frac{((8*2)+1)}{2}=\frac{17}{2}

2\ 2/3=\frac{((3(2)+2)}{3}=\frac{8}{3}

- Multiply both fractions. Mutilply the numerators and the denominators:

(\frac{17}{2})(-\frac{8}{3})=-\frac{136}{6}

- Simplify. Therefore, you obtain that the answer is:

-\frac{68}{3} or -22\ 2/3

5 0
3 years ago
Read 2 more answers
What are three main ways in Whitehall organisms interact
Degger [83]

Answer:

http://www.classzone.com/science_book/mls_grade6_FL/540_547.pdf

Step-by-step explanation:


7 0
3 years ago
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