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Gnesinka [82]
3 years ago
11

WHO EVER CAN DO 50 SMALL QUIZES AS FAST AS POSSIBLE PLEASE, IM DESPRATE AND NEED PASSING GRADES FAST PLEASE SECOND ONE IS LOG IN

, DOWNLOAD PUT MY ID:8089650938 AND PASSWRD: 34RTMD I WILL GIVE ALL MY POINTS AND BRAINLY ON ALL QUESTIONS

Mathematics
1 answer:
emmasim [6.3K]3 years ago
7 0

Answer:

I will try to do it

Step-by-step explanation:

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A tree cast a shadow 21 meters long
Delicious77 [7]

Step-by-step explanation:

I do not understand .____.

5 0
2 years ago
R = sec(θ) − 2cos(θ), where -π/2 < θ < π/2
Alex

Answer:

  y = (x/(1-x))√(1-x²)

Step-by-step explanation:

The equation can be translated to rectangular coordinates by using the relationships between polar and rectangular coordinates:

  x = r·cos(θ)

  y = r·sin(θ)

  x² +y² = r²

__

  r = sec(θ) -2cos(θ)

  r·cos(θ) = 1 -2cos(θ)² . . . . . . . . multiply by cos(θ)

  r²·r·cos(θ) = r² -2r²·cos(θ)² . . . multiply by r²

  (x² +y²)x = x² +y² -2x² . . . . . . . substitute rectangular relations

  x²(x +1) = y²(1 -x) . . . . . . . . . . . subtract xy²-x², factor

  y² = x²(1 +x)/(1 -x) = x²(1 -x²)/(1 -x)² . . . . multiply by (1-x)/(1-x)

  \boxed{y=\dfrac{x\sqrt{1-x^2}}{1-x}}

__

The attached graph shows the equivalence of the polar and rectangular forms.

4 0
2 years ago
NEED HELP FAST! What is the value of x?<br> A. 6<br> B. 6sqrt3<br> C. 12<br> D. 12sqrt3
Nimfa-mama [501]

Answer:

x = 6√3 is the correct answer of this question ...plz mark my answer as brainlist plzzzz vote me

6 0
3 years ago
U is the set of colleges in a country. A is the set of colleges that have a hockey team. B is the set of colleges that have a ph
mojhsa [17]

Answer: C

Step-by-step explanation: If B is the set of colleges that have a physics department.  

B’ is the set of colleges that do not have a physics department.  

U is the union, so we are going to put every element from A and B' together. It can be translated as OR.  

A U B’ is the set of elements in a country that have a hockey team (A) or do not have a physics department (B’) .

8 0
3 years ago
Thereeeeeeeeeeeeeeeeeeeeeeee
lesantik [10]

Answer:

1. 0.5%

2. 3%

3. 20%

4. 250%

5. 500%

hope this helps have a blessed day :)

4 0
3 years ago
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