<span>Answer: 1. B increases 2. </span><span>D 4 </span><span>3. A. every 15 minutes
The exponent function can be described as an= a0(r)^n where a0= the initial value r= the ratio of growth of decay n= the time
In this question, the initial value would be 120, the ratio would be 1.04 and the time would be 4t. The ratio is 1,04 or can be said as 104%. The graph should be growing since the ratio is >1. So, the first answer is increases. The ratio is 104% which means 4% more than the original value(100%). So the next answer would be 4%. The time used in the graph is 4t and the unit used by t is hours. That means, the growing happens for every 1/4 hour. If you change it into minute, it would be: 1/4* 60 minutes/hour= 15 minutes</span>
Since we know that the 38 is being bisected (which we can tell by the fact that the line hits it perpendicularly), we know that from the intersection to the edge of the circle is 19. From this we can create a right triangle in which the legs are 10 and 19 and the hypotenuse is a radius of the circle. Since x is also a radius of the circle, all we have to do is use that information to find the hypotenuse using the Pythagorean Theorem and we have x.
Pythagorean Theorem + = + = 100 + 361 = 461 = x = or about 21.47
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or about 21.47