Answer:
9 red tiles
Step-by-step explanation:
Total number of tiles:
Total number of red tiles:
Probability of getting red in one draw:
<em>This means that you would expect to get red or 30% of the times.</em>
<em>Hence, when you draw tiles 30 times from the bag, you would expect red to be picked 30% of 30 times. This is:</em>
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So, you would expect to draw a red tile from the bag 9 times.
We have been given an equation of circle . We are asked to find the center and radius of the circle.
First of all, we will write equation of circle is standard form , where center of circle is at point (h,k) and radius is r.
Let us complete the square for both x and y.
Adding half the square of coefficient of x and y term, we will get:
Therefore, the center of the circle is and radius is 4 units.
We need to find thr rate of change (slope) of the line joining these two points ~
Slope of the line (m) joining the two points is 2 ~