4/(√<em>x</em> - √(<em>x</em> - 2)) × (√<em>x</em> + √(<em>x</em> - 2))/(√<em>x</em> + √(<em>x</em> - 2))
= 4 (√<em>x</em> + √(<em>x</em> - 2)) / ((√<em>x</em>)² - (√(<em>x</em> - 2))²)
= 4 (√<em>x</em> + √(<em>x</em> - 2)) / (<em>x</em> - (<em>x</em> - 2))
= 4 (√<em>x</em> + √(<em>x</em> - 2)) / (<em>x</em> - <em>x</em> + 2)
= 4 (√<em>x</em> + √(<em>x</em> - 2)) / 2
= 2 (√<em>x</em> + √(<em>x</em> - 2))
Answer:
-21v+50
Step-by-step explanation:
distribute -7 into (3v-6)
8-21v+42
combine like terms
8+42=50
and it leaves u with
-21v+50
hope this helps
Answer: 4
Step-by-step explanation:
<u>solve for the missing angle</u>
the total degrees a triangle can have is 180 so
![180-90-60=30](https://tex.z-dn.net/?f=180-90-60%3D30)
use <u>law of sines</u> to solve for x
![\frac{x}{sin30} =\frac{4\sqrt{3} }{sin60}](https://tex.z-dn.net/?f=%5Cfrac%7Bx%7D%7Bsin30%7D%20%3D%5Cfrac%7B4%5Csqrt%7B3%7D%20%7D%7Bsin60%7D)
cross multiply
![sin60*x=4\sqrt{3} sin30](https://tex.z-dn.net/?f=sin60%2Ax%3D4%5Csqrt%7B3%7D%20sin30)
divide by ![sin60](https://tex.z-dn.net/?f=sin60)
![x=\frac{4\sqrt{3}sin30 }{sin60}](https://tex.z-dn.net/?f=x%3D%5Cfrac%7B4%5Csqrt%7B3%7Dsin30%20%7D%7Bsin60%7D)
type into calculator with (<em>ALPHA Y= </em>for a fraction on TI-84) MAKE SURE IT IS IN DEGREES
Answer:
3.3lbs
Step-by-step explanation:
5 x 2/3 = 3.3