The rule is n/(-2)
<h3>What is geometric Progression?</h3>
A geometric progression is a sequence in which any element after the first is obtained by multiplying the preceding element by a constant called the common ratio which is denoted by r.
Given:
64, -32,16,-8
r= 64/-32
r= -2
again, r= -32/16
r= -2
By above we concluded that the common ratio is is -2.
If n is natural numbers for finding geometric progression the rule which defines it n/(-2).
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Answer:
27
Step-by-step explanation:
C and D both have variables because u don’t know what the x stands for
( I hope this helped)
Answer:

Step-by-step explanation:
To solve for <em>CD</em>, we can create a right triangle.
Where <em>CD</em> becomes the hypotenuse.
The length of the base of the triangle is 9 units.
The length of the height of the triangle is 5 units.
Apply Pythagorean theorem to solve for the hypotenuse.




The length of side DE is 3cm
<h2 /><h3>Parallel line</h3>
Since the line AC is equivalent to DE, hence AC = DE
To get the length of DE, we will need to get the length oF AC using the Pythagoras theorem:
Given the following parameters
Hypotenuse = 5
Opposite = 4
Required
Adjacent side
Substitute the given parameters into the formula of Pythagoras theorem.
AC² = 5² - 4²
AC² = 25 - 16
AC² = 9
AC = 3
Hence the length of side DE is 3cm
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