Answer:
x = 40 1/2
Step-by-step explanation:
The hash marks tell you the triangles are similar and the smaller one is 1/2 the size of the larger one. Then x is half the length of the corresponding segment marked 81.
x = 81/2
x = 40 1/2
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You may have to write it as 81/2 or as 40.5. Sometimes the answer needs to be in a particular form.
The answer to this exponential expression is 439.
To solve this expression, we need to use pemdas (parenthesis, exponents, multiplication, division, addition, subtraction). That measn that we first have to do the parenthesis.
7 * (8)² - 3²
Now we have to do exponents.
7 * 64 - 9
Now we have to do the multiplication (because of the order of pemdas)
448 - 9
Finally, we do the subtraction
439. That means that the answer to this exponential expression is 439.
Answer:
The Symmetric Property states that for all real numbers x and y , if x = y , then y = x . Transitive Property. The Transitive Property states that for all real numbers x , y , and z , if x = y and y = z , then x = z . Substitution Property. If x = y , then x may be replaced by y in any equation or expression. I think it is.
Step-by-step explanation:
The correct answer is 
as shown by the green line on the graph attached to this answer.
