Answer:
Here's the answer hope it helps!!
Answer:
iii) Use algebraic methods
Step-by-step explanation:
There are various method of finding an accurate solution to a system of linear equations.
They are i) graphing method: ii) algebraic method: iii) Matrices method:
iv) determinant method: v) guess method vi) Cramer's rule etc
Guess and check is not reliable because guess is possible only for integers or numbers with 1 or 2 decimals. SOmetimes guess may give unreliable results. And every time after the guess, checking and verifying will be time consuming and laborious
Graphing the lines may be accurate but writing tables for each line, choosing scales and drawing lines to find points of intersection may be time consuming.
Algebraic methods using are easy to understand, reliable, and less time consuming but 100% accuracy. There are a number of ways in algebraic method also such as substitution, elimination or cross multiplication, etc
Thus option iii) is right
Answer:
(x - 2)² + (y + 8)² = 121
Step-by-step explanation:
circle: (x – h)² + (y – k)² = r² (h , k) center r: radius
h = 2 k = - 8 r = 11
equation: (x - 2)² + (y + 8)² = 121
The two consecutive integers are 21 and 22.
<h3>
How to find the two consecutive integers?</h3>
Two consecutive integer numbers can be written as x and x + 1.
The lesser of these two numbers is x, and we know that it is 10 more than one-half of the greater integer, then we can write:
x = 10 + (x + 1)/2
Now we can solve that equation for x:
x = 10 + (x + 1)/2
2x = 20 + (x + 1)
2x = 21 + x
x = 21
Then the lesser number is x = 21 and the larger number is x + 1 = 22
If you want to learn more about integer numbers:
brainly.com/question/2493629
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