Use Ga_thMath(u) (brainly doesn't allow me to type it) To use the app u need to take a pic of the problem and then it will process it and you'll get ur answer ASAP(most of the time). Many questions have been asked before so search it on brainly.
Answer:
57.77 °
Step-by-step explanation:
For this case we have the following trigonometric relationship:
cos (x) = 8/15
x =
(8/15)
x = 57.76904736 degrees
Rounding off answer to the nearest hundredth.
y = 57.77 degrees
5695 Is the Answer
Hope It helps :D
Answer:
Step-by-step explanation:
![3x^2 -8x +5 = 5x^2\\\\5x^2 - 3x^2 + 8x -5 =0\\\\2x^2 +8x -5 = 0\\\\](https://tex.z-dn.net/?f=3x%5E2%20-8x%20%2B5%20%3D%205x%5E2%5C%5C%5C%5C5x%5E2%20-%203x%5E2%20%2B%208x%20-5%20%3D0%5C%5C%5C%5C2x%5E2%20%2B8x%20-5%20%3D%200%5C%5C%5C%5C)
a = 2, b = 8, c = -5
![x = \frac{-b \pm \sqrt{b^2 -4ac} }{2a}\\\\x = \frac{-8 \pm \sqrt{8^2 - ( 4 \times 2 \times (-5))} }{2 \times 2}\\\\x = \frac{-8 \pm \sqrt{64 +40} }{4}\\\\x = \frac{-8 + \sqrt{64 +40} }{4} \ , \ x = \frac{-8 - \sqrt{64 +40} }{4}\\\\x = \frac{-8 + \sqrt{104} }{4} \ , \ x = \frac{-8 - \sqrt{104} }{4}\\\\x = \frac{-8 + \sqrt{4 \times 26} }{4} \ , \ x = \frac{-8 - \sqrt{4 \times 26} }{4}\\\\x = \frac{-8 +2 \sqrt{26} }{4} \ , \ x = \frac{-8 - 2\sqrt{26} }{4}\\\\](https://tex.z-dn.net/?f=x%20%3D%20%5Cfrac%7B-b%20%5Cpm%20%5Csqrt%7Bb%5E2%20-4ac%7D%20%7D%7B2a%7D%5C%5C%5C%5Cx%20%3D%20%5Cfrac%7B-8%20%5Cpm%20%5Csqrt%7B8%5E2%20-%20%28%204%20%5Ctimes%202%20%5Ctimes%20%28-5%29%29%7D%20%7D%7B2%20%5Ctimes%202%7D%5C%5C%5C%5Cx%20%3D%20%5Cfrac%7B-8%20%5Cpm%20%5Csqrt%7B64%20%2B40%7D%20%7D%7B4%7D%5C%5C%5C%5Cx%20%3D%20%5Cfrac%7B-8%20%2B%20%5Csqrt%7B64%20%2B40%7D%20%7D%7B4%7D%20%5C%20%2C%20%5C%20x%20%3D%20%5Cfrac%7B-8%20-%20%5Csqrt%7B64%20%2B40%7D%20%7D%7B4%7D%5C%5C%5C%5Cx%20%3D%20%5Cfrac%7B-8%20%2B%20%5Csqrt%7B104%7D%20%7D%7B4%7D%20%5C%20%2C%20%5C%20x%20%3D%20%5Cfrac%7B-8%20-%20%5Csqrt%7B104%7D%20%7D%7B4%7D%5C%5C%5C%5Cx%20%3D%20%5Cfrac%7B-8%20%2B%20%5Csqrt%7B4%20%5Ctimes%2026%7D%20%7D%7B4%7D%20%5C%20%2C%20%5C%20x%20%3D%20%5Cfrac%7B-8%20-%20%5Csqrt%7B4%20%5Ctimes%2026%7D%20%7D%7B4%7D%5C%5C%5C%5Cx%20%3D%20%5Cfrac%7B-8%20%2B2%20%5Csqrt%7B26%7D%20%7D%7B4%7D%20%5C%20%2C%20%5C%20x%20%3D%20%5Cfrac%7B-8%20-%202%5Csqrt%7B26%7D%20%7D%7B4%7D%5C%5C%5C%5C)
![x = \frac{-4 + \sqrt{26} }{2} \ , \ x = \frac{-4 - \sqrt{26} }{2}](https://tex.z-dn.net/?f=x%20%3D%20%5Cfrac%7B-4%20%2B%20%5Csqrt%7B26%7D%20%7D%7B2%7D%20%5C%20%2C%20%5C%20x%20%3D%20%5Cfrac%7B-4%20-%20%5Csqrt%7B26%7D%20%7D%7B2%7D)
Answer:
Thank you ma'am. I have one
Step-by-step explanation: