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stealth61 [152]
3 years ago
10

Help please i will award brainliest

Mathematics
2 answers:
nata0808 [166]3 years ago
8 0

Answer:

D 826.80

Step-by-step explanation:

andrezito [222]3 years ago
3 0

Answer:

$780.00

Step-by-step explanation:

just add 420+360= $780.00

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How do I get (tan^2(x)-sin^2(x))/tan(x) equal to (sin^2(x))/cot(x)
shepuryov [24]
LHS\\ \\ =\frac { \tan ^{ 2 }{ x-\sin ^{ 2 }{ x }  }  }{ \tan { x }  } \\ \\ =\frac { 1 }{ \tan { x }  } \left( \tan ^{ 2 }{ x-\sin ^{ 2 }{ x }  }  \right)

\\ \\ =\frac { \cos { x }  }{ \sin { x }  } \left( \frac { \sin ^{ 2 }{ x }  }{ \cos ^{ 2 }{ x }  } -\frac { \sin ^{ 2 }{ x\cos ^{ 2 }{ x }  }  }{ \cos ^{ 2 }{ x }  }  \right) \\ \\ =\frac { \cos { x }  }{ \sin { x }  } \left( \frac { \sin ^{ 2 }{ x-\sin ^{ 2 }{ x\cos ^{ 2 }{ x }  }  }  }{ \cos ^{ 2 }{ x }  }  \right)

\\ \\ =\frac { \cos { x }  }{ \sin { x }  } \cdot \frac { \sin ^{ 2 }{ x\left( 1-\cos ^{ 2 }{ x }  \right)  }  }{ \cos ^{ 2 }{ x }  } \\ \\ =\frac { \cos { x }  }{ \sin { x }  } \cdot \frac { \sin ^{ 2 }{ x\cdot \sin ^{ 2 }{ x }  }  }{ \cos ^{ 2 }{ x }  } \\ \\ =\frac { \cos { x } \sin ^{ 4 }{ x }  }{ \sin { x\cos ^{ 2 }{ x }  }  } \\ \\ =\frac { \sin ^{ 3 }{ x }  }{ \cos { x }  }

\\ \\ =\sin ^{ 2 }{ x } \cdot \frac { \sin { x }  }{ \cos { x }  } \\ \\ =\sin ^{ 2 }{ x } \cdot \frac { 1 }{ \frac { \cos { x }  }{ \sin { x }  }  } \\ \\ =\sin ^{ 2 }{ x } \cdot \frac { 1 }{ \cot { x }  } \\ \\ =\frac { \sin ^{ 2 }{ x }  }{ \cot { x }  } \\ \\ =RHS
8 0
3 years ago
WILL MARK BRAINLIEST
AURORKA [14]

Answer: most likely to be C

Step-by-step explanation:

I can’t see the triangle but I can tell that’s the answer

8 0
3 years ago
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Use substitution to solve the system of equations.<br> y + x = 3<br> y = 1.5x + 1
jeyben [28]

Answer:

x=0.8, y=2.2 (0.8, 2.2).

Step-by-step explanation:

y+x=3

y=1.5x+1

-------------

1.5x+1+x=3

2.5x=3-1

2.5x=2

x=2/2.5

x=0.8

y+0.8=3

y=3-0.8

y=2.2

5 0
3 years ago
Convert 0.0001 to a power of 10.
Damm [24]
<span> 10^-4 is the answer</span>
4 0
3 years ago
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32 = 4(n – 5) and -s + 11 = 17 please solved Both of the following​
valina [46]

Answer:

n=13 s=-6

Step-by-step explanation:

Hope this helps :)

4 0
3 years ago
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