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creativ13 [48]
3 years ago
11

Find the sides of a triangle if 2 sides of it are equal, the third side is 1 1/3, and the perimeter is 5 2/5

Mathematics
1 answer:
Kaylis [27]3 years ago
7 0
Both of the sides are 2 and 1/30
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The rectangular coordinates of a point are given. Find the polar coordinates ​(r,theta​) of this point with theta expressed in r
alexandr402 [8]

Answer:}

In polar coordinates P is

P  ( 12 ; 2.618 )  

Step-by-step explanation:

The point (ectangular coordinates)  

P ( -6√3  ;   6 )       P  (  x ; y )

Polar coordinates   P ( r  ;  θ )

x = r cos θ

y = r sin θ                  r > 0    and     0  ≤ θ ≤ 2π

Then

r  =  √ (x)² + (y)²        r  =  √(36)²*3 +( 36)²       r = √144

r  =  12   (hypothenuse module always positive)

The point   P  ( -6√3  ;   6 )   is in second cuadrant  between 90° and 180°

angle between  r  and horizontal axis x  is equal to θ

tan α =  l.opp/ l.adj.    tan θ =  y/x       tan θ = - 6 /6√3

tan α = - 1/√3

Then α  =  180⁰ - 150⁰  = 30⁰  or     θ =  150⁰

to express that value in radians we have :

1 π radian      =   180⁰         ⇒   3,1416   radians  =  180⁰

                                                      x ??                  =   150⁰

x =  radians

Finally the point is   P  ( 12 ; 2.618 )  

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3 years ago
There are 7 men and 3 women on a coed volleyball team. Two of them will be randomly selected to play in a two-person-team tourna
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3 years ago
the height of a triangle is 7cm longer than its base. The area of the triangle is 60cm^2 What is the base of the triangle.
OlgaM077 [116]
Triangle area = (1/2) base * height
60 = 3.5 * base
base = 60 / 3.5
base = <span> <span> <span> 17.1428571429 </span> </span> </span>


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3 years ago
The scatter plot below shows the average number of customers who visit a food truck per day, depending on the number of days the
Liono4ka [1.6K]

Answer:

a

Step-by-swyrh5htyv2tytep explanation:

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4 0
3 years ago
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Write the vertex form equivalent of 3x^2-30x+73=y
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Answer:

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Step-by-step explanation:

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