Answer:
are the angles congruent? or the sides if they arent then there is no way to tell.
Step-by-step explanation:
Answer: It is asking the amount of pure water.
Amount of pure water evaporated is 64 gallons .
Step-by-step explanation:
Let x gallons be the amount of evaporated water.
Amount of water before evaporation
=12% of 160
= 0.12(160) = 19.2 gallons .......(1)
amount of solution after x gallon water evaporation = 160-x
amount of salt in 160-x solution = 20% of 160-x
=0.2 (160-x) ........... (2)
Since amount of salt will be same before and after evaporation
from (1 ) and (2)
0.2(160-x) = 19.2
32-0.2x = 19.2
-0.2x = 19.2-32
-0.2x = -12.8
x = -12.8/(-0.2)
x = 64 gallons
Answer:
∠ CFE and ∠ DFE are adjacent angles and are supplementary, sum to 180°
∠ CFE + 152° = 180° ( subtract 152° from both sides )
∠ CFE = 28°
Step-by-step explanation:
Answer:
use 2 defined points.
Lets use: (-3,0) and (0,3)
The equation is written as y = mx+b, where m is the slope and is the y-intercept
Slope - change in y / change in x:
Slope = (3 -0) /(0- -3) = 3/3 = 1
b is the y-intercept which is the y value when x is o, which is one of the points (0,3) so b = 3
The equation becomes y = x +3
It should be 10...because the 2 angles in the base are the same so the length is mirrored
