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polet [3.4K]
2 years ago
11

Help me to slove this​

Mathematics
2 answers:
Molodets [167]2 years ago
6 0
Do lengeth times wideth, pi times the radius of the circle
r-ruslan [8.4K]2 years ago
4 0

Answer:

1. pi.      2.49-12.25pi

Step-by-step explanation:

You might be interested in
Find two unit vectos that are orthogonal to both [0,1,2] and [1,-2,3]
alekssr [168]

Answer:

Let the vectors be

a = [0, 1, 2] and

b = [1, -2, 3]

( 1 ) The cross product of a and b (a x b) is the vector that is perpendicular (orthogonal) to a and b.

Let the cross product be another vector c.

To find the cross product (c) of a and b, we have

\left[\begin{array}{ccc}i&j&k\\0&1&2\\1&-2&3\end{array}\right]

c = i(3 + 4) - j(0 - 2) + k(0 - 1)

c = 7i + 2j - k

c = [7, 2, -1]

( 2 ) Convert the orthogonal vector (c) to a unit vector using the formula:

c / | c |

Where | c | = √ (7)² + (2)² + (-1)²  = 3√6

Therefore, the unit vector is

\frac{[7,2,-1]}{3\sqrt{6} }

or

[ \frac{7}{3\sqrt{6} } , \frac{2}{3\sqrt{6} } , \frac{-1}{3\sqrt{6} } ]

The other unit vector which is also orthogonal to a and b is calculated by multiplying the first unit vector by -1. The result is as follows:

[ \frac{-7}{3\sqrt{6} } , \frac{-2}{3\sqrt{6} } , \frac{1}{3\sqrt{6} } ]

In conclusion, the two unit vectors are;

[ \frac{7}{3\sqrt{6} } , \frac{2}{3\sqrt{6} } , \frac{-1}{3\sqrt{6} } ]

and

[ \frac{-7}{3\sqrt{6} } , \frac{-2}{3\sqrt{6} } , \frac{1}{3\sqrt{6} } ]

<em>Hope this helps!</em>

7 0
3 years ago
Colin and Brian scored 59. Brian scored 59 more points than Colin ,so what are Colin and brain scored combine together ? Colin s
makvit [3.9K]

Answer:

59

Step-by-step explanation:

Let c and b represent the scores of Colin and Brian respectively.  Then

c + b = 59.  Since brian scored 59 more points than Colin, that means c = 0 and b = 59.  Their combined score is 0 + 59 = 59.

6 0
3 years ago
Write 29% as a decimal
Afina-wow [57]

Answer:

https://researchmaniacs.com/Math/Fractions/What-Is-29/100-As-A-Decimal.html

What is 29/100 as a decimal? - Research Maniacs

https://www.geteasysolution.com/29/100_as_a_decimal

29/100 as a decimal - Get Easy Solution

https://www.asdecimal.com/fraction/29/100

29/100 As Decimal

8 0
3 years ago
Read 2 more answers
Py+7=6y+q is what in fraction form if anyone can help me<br> I need help bad
algol13
<span>py+7=6y+q does not involve division.  What type of fraction form are you thinking of?

</span><span>py+7=6y+q could be rearranged:  py-6y = q - 7, or y(p-6) = q - 7
                    q - 7
Then y = ------------  This is y in terms of p and q.  But again, I don't know  
                    p - 6     whether this is what you were looking for.  
                                 Please be more specific.</span>
6 0
3 years ago
A system of two linear equations has no solution. One equation is 3x – 6y = 5. Select the equation that would make this system h
liq [111]

Answer:

d is the answer

Step-by-step explanation:

6 0
3 years ago
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