Answer:
We need the segments but which ever one has the segment that is 2/3 times the length of segments xy
Step-by-step explanation:
Step-by-step explanation:

Answer:
1. 4+n
2. n-9
3. 2n + 6
4. n/6
5. 2(n+3)
Step-by-step explanation:
The sum of the numbers expressed in scientific notations is given by: Option B: 
<h3>How does scientific notations work?</h3>
The number is written in the form
where we have 
The number b shows the order, which is the most important figure for which scientific notation is used. It tells us how much order large or small a value is in powers of 10. We can for a time, ignore the value of 'a' for two comparable quantities and only compare their orders(this type of comparison is useful when difference is too big, like size of human to size of a star etc sort of comparisons).
Scientific notations have some of the profits as:
- Better readability due to compact representation
- Its value in terms of power of 10 is known, which helps in easy comparison of quantities differing by a large value.
The given expression is:

Evaluating the multiplication, we get:

It is because of exponent rule that
, and because of commutative property of addition.
Thus, the sum of the numbers expressed in scientific notations is given by: Option B: 
Learn more about scientific notation here:
brainly.com/question/3112062
<u><em>Answer: x=4 *The answer should be the positive sign.*</em></u>
Step-by-step explanation:
cancel by the common factor of 6.
x/16=1/4
multiply by 16 both sides of an equation.
16x/16=1*16/4
multiply the numbers.
1*16=16
=16/4
16/4=4
x=4
Hope this helps!
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