The square of the hypotenuse of a right-angled triangle is equal to the sum of the squares of the other two sides.
You can use Pythagoras' Theorem to calculate QR:
a^2 + b^2 = c^2
5^2 + 12^2 = QR^2
25 + 144 = QR^2
169 = QR^2
This means that the square root of 169cm is QR, which is 13cm.
SR is equal to QR, which means that SR is 13cm.
The unit price per pen is $0.14.
Explanation :
You simply divide the total by the quantity.
$1.09/8= 0.13625.
Since this has to do with money you round to the nearest hundredth to get $0.14.
x isn't a linear equation, it's just a variable or an expression or a letter of the alphabet.
x = 0 is a linear equation and is a line in the Cartesian plane. In fact, it's the y axis itself.
So every point on the line x=0 is a y intercept.
There is no "the" y intercept, no unique y intercept.
The answer is 200. 20*10=200
27|405 27*1=27
- 27 27*5=135
-------
135
-135
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0
Answer is 6 :v