Answer:
x + 49 + 28 = 180
Step-by-step explanation:
The angles on a straight line with x° are 28° and 49° respectively, side by side with x°. This is because, vertical angles are equal. Therefore, the angle vertically opposite 28° and 49° are equal to 28° and 49° respectively.
Therefore, since angles on a straight line is 180°, thus:
x + 49 + 28 = 180
Answer:
20%
Step-by-step explanation:
Calculate percentage change
from V1 = 15 to V2 = 18
(V2−V1)|V1|×100
=(18−15)|15|×100
=315×100
=0.2×100
=20%change
=20%increase
Substitute x for -1 in <span> y=3x-1
</span>y = <span><span>(3) <span>(-1) -</span></span><span>1
</span></span>Solve
y = (3) (-1) -1
y = -3 - 1
y = -4
B.) -4 is your answer
Answer:
![\frac{3 + \sqrt{3x} }{3 - x}](https://tex.z-dn.net/?f=%5Cfrac%7B3%20%2B%20%5Csqrt%7B3x%7D%20%7D%7B3%20-%20x%7D)
Step-by-step explanation:
You can use the work they gave you and continue from there:
![\frac{\sqrt{3}(\sqrt{3}) + \sqrt{3}(\sqrt{x}) }{(\sqrt{3}) ^{2} - (\sqrt{x} )^{2} }](https://tex.z-dn.net/?f=%5Cfrac%7B%5Csqrt%7B3%7D%28%5Csqrt%7B3%7D%29%20%2B%20%5Csqrt%7B3%7D%28%5Csqrt%7Bx%7D%29%20%20%7D%7B%28%5Csqrt%7B3%7D%29%20%5E%7B2%7D%20-%20%28%5Csqrt%7Bx%7D%20%29%5E%7B2%7D%20%7D)
First, simplify the numerator:
![\frac{3 + \sqrt{3x} }{(\sqrt{3}) ^{2} - (\sqrt{x}) ^{2} }](https://tex.z-dn.net/?f=%5Cfrac%7B3%20%2B%20%5Csqrt%7B3x%7D%20%7D%7B%28%5Csqrt%7B3%7D%29%20%5E%7B2%7D%20-%20%28%5Csqrt%7Bx%7D%29%20%5E%7B2%7D%20%7D)
Finally, simplify the denominator:
![\frac{3 + \sqrt{3x} }{3 - x}](https://tex.z-dn.net/?f=%5Cfrac%7B3%20%2B%20%5Csqrt%7B3x%7D%20%7D%7B3%20-%20x%7D)
Answer:
eh i mean sometimes thats a very broad statement though