11w(w-22) Multiply 11w times each term in the parenthesis
If 11 key chains cost $53.35, then 4 key chains cost $
1 answer:
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Answer:
Step-by-step explanation:
They gave us the first two terms in the sequence which is 5,10.
They then tell us the sequence is arithmetic which means all you need to do to get the next term is add/subtract.
To get from 5 to 10, you would need to add 5.
So that is what we are doing every time here.
5,10,15,20,25,... so on...
Now we want to make an equation for this.
When you see arithmetic sequence, you should think linear equations.
x | y
-----------
1 5
2 10
3 15
4 20
Can you see the relationship between y and x?
Slope is 5 because that is what the sequence is going up by.
y=5x+b
Maybe you can already see b is 0. If not, you can use a point on the line to find b.
Let's use (1,5).
5=5(1)+b
5=5+b
0=b
So b=0.
The equation is y=5x.
Our since we are talking about sequences maybe you prefer to say
Given:
A quadrilateral inscribed in a circle.
To find:
The value of x and y.
Solution:
If a quadrilateral inscribed in a circle, then it is known as cyclic quadrilateral and the opposite angles of a cyclic quadrilateral are supplementary angles, it means their sum is 180 degrees.
[Supplementary angles]
The value of x is 14 degrees.
[Supplementary angles]
Therefore, the value of x is 14 degrees and the value of y is 38 degrees.