<h3>
Answer: Yes, those sides form a right triangle</h3>
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Work Shown:
a^2+b^2 = c^2
15^2+20^2 = 25^2
225+400 = 625
625 = 625
Since the last equation is true, this makes the first equation true for those a,b,c values. Therefore, by the pythagorean theorem converse, this is a right triangle.
Side note: c is always the longest side.
Answer:
168/(x² +7x)
Step-by-step explanation:
The height of each window is 14/(x+7), and the width of each window is 12/x. The area of each window is the product of its height ans width:
area = (14/(x+7))(12/x) = 168/(x(x +7))
area = 168/(x² +7x)
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<em>Comment on the problem</em>
There is not enough information given to determine suitable values for x. If x is 42, each window is a square 3 3/7 inches on a side.
Answer:
122
Step-by-step explanation:
If a number has an explanation point on the side of it, you should multiply all numbers that are equal to are less than that number.
Answer: sqrt (-121) is 11i
Step-by-step explanation:
The solution is 
and 
Step-by-step explanation:
The expression is 
and 
Using substitution method we can solve the expression.
Let us substitute 
in
Expanding and simplifying the expression, we get,
Let us use the quadratic equation formula to solve this equation,
Thus, 
and 
Substituting y-values in the equation , we get the value of x.
For ⇒ 
For ⇒ 
Thus, the solution set is and
