5x-6=3x-9 .......................................................................................

Mathematics

1 answer:

Vladimir79 [104]3 years ago

3 0

Answer:

-3 / 2

Step-by-step explanation:

5x - 6 = 3x - 9
5x - 6 + 6 = 3 x - 9 + 6
5x = 3x - 3
5x - 3x = 3x - 3 - 3x
2x = - 3
2x / 2 = -3 / 2
The X = -3 / 2

You might be interested in

Select the statement that best justifies the conclusion based on the given information.

CaHeK987 [17]

9514 1404 393

Answer:

c. If a plane contains a line, it contains the points on the line.

Step-by-step explanation:

The only statement relating a point on a line to the plane containing the line is the one shown above.

_____

Additional comment

Identifying true statements is a reasonable strategy for many multiple-choice questions. Another strategy that can be employed is finding the one true statement that is relevant to the question being asked.

8 0

3 years ago

Pat needs to determine the height of a tree before cutting it down to be sure that it will not fall on a nearby fence. The angle

dem82 [27]

Answer:

229.23 feet.

Step-by-step explanation:

The pictorial representation of the problem is attached herewith.

Our goal is to determine the height, h of the tree in the right triangle given.

In Triangle BOH

$Tan 60^0=\dfrac{h}{x}\\h=xTan 60^0$

Similarly, In Triangle BOL

$Tan 50^0=\dfrac{h}{x+60}\\h=(x+60)Tan 50^0$

Equating the Value of h

$xTan 60^0=(x+60)Tan 50^0\\xTan 60^0=xTan 50^0+60Tan 50^0\\xTan 60^0-xTan 50^0=60Tan 50^0\\x(Tan 60^0-Tan 50^0)=60Tan 50^0\\x=\dfrac{60Tan 50^0}{Tan 60^0-Tan 50^0} ft$