Answer:
Ok, If you are trying to solve for x then your answer in fraction form is x=4/11. If you want it in decimal form the answer is 0.36(Repeats forever). And these answers are also implying that when you typed a "^" it meant multiplcation
Step-by-step explanation:
I have used an Online Algebra Calculator to help guide me to my answer and this answer is 100% correct so,
PLEASE MARK BRAINLIEST
The simplified expression of 
is 
<h3>How to simplify the expression?</h3>
The expression is given as:
Divide 162 and 2 by 2
Take the square root of 81
Apply the quotient rule of indices
Evaluate the difference
Take the square root of x^18
Hence, the simplified expression of is
Read more about expressions at:
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All is in the file. The graph and formulas.
Answer:
4 cm
Step-by-step explanation:
prolly cus the 12 cm is the bottom and the 4 cm is one of the sides so the other one is 4 cm
Answer:
The bottom one ....see below
Step-by-step explanation:
Using reference angle of pi/8 and half angle trig identity:
cos ( angle/2) = -sqrt (1 + cos (angle) /2)
cos ( pi/4 / 2) = - sqrt (1+ cos ( pi/4)/2)
<u> cos (pi/8)</u> = - sqrt (1 + sqrt (2) / 2)
= - sqrt (1 + sqrt 2) / sqrt 2 rationalize the denominator
= - sqrt ( sqrt 2 + 2) / 2
re arrange to
- sqrt ( 2 + sqrt2) / 2 the fourth answer
