Answer:
x = 15.49
Step-by-step explanation:
As you can see this is a right-angled triangle due to the right angle symbol, we can use Pythagorean theory to find the unknown length:
In this case, we know C and B but not A so:
Now plug the values in:
Square root the answer to get A:
a = 15.49
x = 15.49
Hope this helps!
Answer:
(22h - 8) centimeters
Step-by-step explanation:
Perimeter of a rectangle = 2(length + width)
= 2{(9h - 1) + (2h - 4)}
= 2(9h - 1 + 2h - 4)
= 2(11h - 4)
= (22h - 8) centimeters
The two diagonals<span> are </span>equal<span> in length and bisect each other. Every </span>quadrilateral<span> with both these properties is a </span>rectangle<span>. A </span>rectangle<span> is rectilinear:which means its sides meet at right angles.</span>
The value of k is
<h3>How to solve the simultaneous equation?</h3>
Given:
x-y=k.............(eq i)
2x²+y²-15..............(eq ii)
We would make y the subject formula in eq ii
2x²+y²-15= 0
2x² + y²= 15
y²= 15-2x²
y= 
...........(eq iii)
Substitute the value of y into eq i
x-(= k
x- (
= k
k=
Read more about simultaneous equations here:
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