Answer:
Step-by-step explanation:
Area of triangle = (1/2)*(side1)(side2)*sin(angle between these sides)
A=(1/2)*12*8 sin(65⁰) ≈ 43.5 cm²
Ok so first off understand what they are saying. there is a movie on sale for $22.10 which is 15 percent of the original price. So now what you do is set up the problem.
22.10 is = 15% of the price
x = 100% of the price (original price)
<u> 15 </u> = <u>22.10
</u>100 x
<u>
</u>now just use cross multiplication.
15x = 22.10 · 100
solve for x.
<u>15x</u> = <u>2210</u>
<u /> 15 15
x = 147.33333333 since the 3's go on forever you can simply put it into a fraction
x = 147 <u>3
</u> 9
<u>
</u>whenever there is a repeating number you can put it into a fraction but putting the repeating number over a 9
1= 6.928203 recurring
2= 3
3= 6.2449979984
4= 17
Answer:
sin x = cos y
Step-by-step explanation:
sin theta = opp / hyp
cos theta = adj / hyp
First find the hyp
a^2 + b^2 = c^2 from the Pythagorean theorem
5^2+12^2 = hyp^2
25+144= hyp^2
169= hyp^2
Taking the square root of each side
sqrt(169) =sqrt(hyp^2)
13= hyp
sin x = opp / hyp=5/13
sin y = 12/13
cos x = 12/13
cos y = 5/13
sin x = cos y