85/100 and in simple terms 17/20
A^2 +b^2 = c^2
a= wall
b = ground (18)
c = ladder (25)
a^2 + 18^2 = 25^2
a^2 + 324 = 625
a^2 = 301
a = 17.349
You have to be able to know the appropriate properties or postulates to apply on the angles or segments to simplify them. An example would be the Angle Addition Postulate. This postulates states that the sum of the individual measures of the interior angles is equal to the measure of the included angle. There are still a lot more properties to choose from depending on the situation.
Answer:
Rectangle Y has a length of 6 and width of 4
Step-by-step explanation:
Just did it
Answer: -24
Step-by-step explanation:
Let the unknown number be x , therefore ; The difference between the number and 6 implies x - 6
Also , twice their difference implies 2 ( x - 6 )
The sum of the number and 4 implies : x + 4
three times their sum implies : 3 ( x + 4 )
Combining all together , we have
2 ( x - 6 ) = 3 ( x + 4 )
Expanding , we have
2x - 12 = 3x + 12
collecting the like terms , we have
2x - 3x = 12 + 12
-x = 24
multiply through by -, we have
x = -24
Check :
2 ( x - 6 ) will give
2 ( -24 - 6 )
= 2 (-30)
= -60
3 ( x+4) will give
3 ( -24 + 4 )
= 3 ( -20)
= -60
Therefore:
2( x- 6 ) = 3 ( x + 4 )
