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Anettt [7]
2 years ago
6

50 POINTS AND BRAINLIST

Mathematics
1 answer:
konstantin123 [22]2 years ago
8 0

Answer:

B° = 46°

b = 23.8

c = 33.1

given:

  • opposite: 23
  • hypotenuse: c
  • adjacent: b
  • angle: 44°

Lets find B:

B + 90° + 44° = 180°

B = 180° - 134°

B = 46°

Lets find c:

using sine rule:

\sf sin(x)= \dfrac{opposite}{hypotenuse}

\sf hypotenuse= \dfrac{23}{sin(44)}

\sf hypotenuse= 33.1

Lets find b:

using tan rule:

\sf tan(x) = \dfrac{opposite}{adjacent}

\sf adjacent = \dfrac{23}{tan(44)}

\sf adjacent =23.8

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Find all complex solutions of 5x^2+5x+3=0.
oksian1 [2.3K]

Answer:

see explanation

Step-by-step explanation:

5x² + 5x + 3 = 0 ← in standard form

with a = 5 , b = 5 , c = 3

Solve using the quadratic formula

x = \frac{-b+/-\sqrt{b^2-4ac} }{2a}

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  = \frac{-5+/-\sqrt{25-60} }{10}

  = \frac{-5+/-\sqrt{-35} }{10}

  = \frac{-5+/-\sqrt{-1(35)} }{10}

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Then

x = \frac{-5}{10} ± \frac{1}{10} i\sqrt{35} , that is

x = - \frac{1}{2} - \sqrt{x} \frac{1}{10} i\sqrt{35} , - \frac{1}{2} + \frac{1}{10} i\sqrt{35}

5 0
3 years ago
In the figure below find the angles, QOS, QRS, and the angle OQR<br><br>Pls help​
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Explanation
7 0
3 years ago
Read 2 more answers
What is the axis of symmetry for f(x) = 2x2 - 8x + 8?<br> Ox<br> = -2<br> Ox=-3<br> Ox=3<br> Ox=2
zepelin [54]

Answer:

  x = 2

Step-by-step explanation:

For quadratic ax^2 +bx +c, the axis of symmetry is x = -b/(2a).

Here, we have a=2, b=-8, so the axis of symmetry is ...

  x = -b/(2a) = -(-8)/(2(2)) = 8/4

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5 0
3 years ago
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