May I please ask,Where is the Mathematic problem that I may solve. ;)
Answer:
The value of XY is 20.
Step-by-step explanation:
Given:
XZ = 16
YZ = 12
Since the triangle is not shown:
Assuming it is a right angled triangle with right angle at ∠Z.
We have drawn the triangle for your reference.
Now by Using Pythagoras theorem we get;
Substituting the values we get;
Now taking square root on both side we get;
Hence The value of XY is 20.
Given expression is x² - 121
This is called Difference of Squared terms, we have a formula that is given as :-
a² - b² = (a - b) · (a + b)
Now using the above formula in the given expression, we get :-
x² - 121
x² - (11)²
here a = x and b = 11
x² - (11)² = (x - 11) · (x + 11)
but it says that student gave the answer as (x - 11) · (x - 11).
So, student's answer should be (x - 11) · (x + 11) instead of product of two (x - 11) terms.
Answer:
3
Step-by-step explanation:
Answer:
The cost of the present is $22.20
Step-by-step explanation: