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exis [7]
3 years ago
12

Help i need this soon its 8th grade math​

Mathematics
2 answers:
Alexxx [7]3 years ago
5 0
The correct answer would be, 50°
I hope this helps!
earnstyle [38]3 years ago
3 0

Answer:

50 degrees

Step-by-step explanation:

vertical angles are the same

angle LPM = 180-60-70

angle LPM = 180-130 = 50

angle LPM = angle KPN

50=angle KPN

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8 0
3 years ago
URGENT!! Solve the following for θ, in radians, where 0≤θ&lt;2π.
lidiya [134]

Answer:   0.93 radians & 2.21 radians

<u>Step-by-step explanation:</u>

-4sin^2\theta-3sin\theta+5=0\\\\\text{Since this is not factorable, use the quadratic formula to find the roots:}\\\\sin\theta=\dfrac{-(-3)\pm \sqrt{(-3)^2-4(-4)(5)}}{2(-4)}\\\\\\.\quad=\dfrac{3\pm \sqrt{9+80}}{-8}\\\\\\.\quad=\dfrac{3\pm\sqrt{89}}{-8}\\\\\\.\quad=\dfrac{3\pm9.43}{-8}\\\\\\.\quad=\dfrac{12.43}{-8}\quad and\quad \dfrac{-6.43}{-8}\\\\\\.\quad=-1.55\quad and\quad 0.80\\\\\\\theta=sin^{-1}(-1.55)\quad and\quad \theta=sin^{-1}(0.80)

\theta=not\ valid\qquad and\quad \theta=0.927

\theta = 0.927\ radians\text{\ in the 1st quadrant and}\\\pi-0.927=2.21\ radians\text{\ in the 2nd quadrant}

6 0
4 years ago
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Could someone please explain! I cant figure it out.
qwelly [4]

2^-2 = 1/2^2

so: (1/2^2)*(12*3)-5^3

simplify: (1/4)*36-125

36*(1/4) = 36/4 so: 9-125

subtract: -116

3 0
4 years ago
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