Chin made an error in his chart showing the multiplication of the binomial by the trinomial. Which change can be made to correct
the chart? The expression 3x3 should be 3x2. The expression 6x should be 6xy. The expression x2y should be x2y2. The expression 4y should be 4y2.
2 answers:
Answer:
The expression 6x should be 6x²
Step-by-step-explanation:
The chart being referred to showing the multiplication of the binomial by the trinomial is given in the attached picture below.
To find out where Chin made an error in his multiplication, and also determine the right expression, let's take a look at each multiplication done. Thus we have:
3x*x² = 3x³
3x*2x = 6x² (here is where the error was made, in the chart, Chin wrote 6x)
3x*4 = 12x
2*x²=2x²
2*2x = 4x
2*4 = 8
Therefore, the expression 6x should be 6x²
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r stands for radius. Therefore r^2 = diameter or 2×radius.
The question has already given the information we need, which are:
- radius = 4
- the center at (0,8)
Since the center is (h,k) - therefore the center is at h = 0 and k = 8 making it (h,k) = (0,8).
Substitute the values in the equation:
Simplify to the simplest form
Answer
- The equation of a circle is x^2+(y-8)^2 = 16