PLEASE HELP ME! 22 POINTS!!!

Solve for xx. Round to the nearest tenth, if necessary.

jasenka [17]

Step-by-step explanation:

S+T+U=180°{sum of angle of triangle}

68°+90°+U=180°
U=180-158°
U=22°

sin theta= p/h

sin22°=x/83

o.37=x/83

x=0.37×83

x=30.71

x=31

stay safe healthy and happy.

6 0

2 years ago

Find the exact value

Mnenie [13.5K]

By using properties for trigonometric functions and trigonometric expressions, we find that the exact value of the sine of the angle 5π/12 radians is $\frac{\sqrt{2+\sqrt{3}}}{2}$ .

<h3>How to find the exact value of a trigonometric expression</h3>

Trigonometric functions are trascendent functions, these are, that cannot be described algebraically. Herein we must utilize trigonometric formulae to calculate the exact value of a trigonometric function:

$\sin \frac{5\pi}{12} = \sqrt{\frac{1 - \cos \frac{5\pi}{6} }{2} }$

$\sin \frac{5\pi}{12} = \sqrt{\frac{1 + \cos \frac{\pi}{6} }{2} }$

$\sin \frac{5\pi}{12} = \sqrt{\frac{1 + \frac{\sqrt{3}}{2} }{2} }$

$\sin \frac{5\pi}{12} = \sqrt{\frac{2+\sqrt{3}}{4} }$

$\sin \frac{5\pi}{12} = \frac{\sqrt{2+\sqrt{3}}}{2}$

By using properties for trigonometric functions and trigonometric expressions, we find that the exact value of the sine of the angle 5π/12 radians is $\frac{\sqrt{2+\sqrt{3}}}{2}$ .

To learn more on trigonometric functions: brainly.com/question/15706158

#SPJ1

7 0

1 year ago

The leg of the isosceles triangle is two less than three times the length of its base. If the perimeter of the triangle is 45 m,

choli [55]

Answer:

19 m

Step-by-step explanation:

base=x

leg=3x-2

3x-2+3x-2+x=45

7x-4=45

7x=49

x=7

leg=3x+2=3(7)-2=19

7 0

2 years ago

A theater where a drug abuse program is being presented seats 150 people. The proceeds will be donated to a local drug informati

Yuliya22 [10]

there should be at least 100 adults and 50 students because if there are 100 hundred adults- that means there would be 1 student per 2 adults giving you 100 adults and 50 student equaling a total of 150 seats which is the max seats the theater can hold and that would raise

$2.00 x 100 = $200.00

$1.00 x 50 = $50.00

$200.00 + $50.00 = $250.00

$250.00 is the max amount of money the program can make and to make that $250.00--- 100 adults and 50 students would have to attend

4 0

3 years ago

Quality T-Shirts sells shirts in bulk. The cost is a

adell [148]

Answer:

ok

Step-by-step explanation:

it was a different question in our lesson

4 0

3 years ago