The astrolabe, an example of improved technology of the 15th and 16th centuries, had the greatest impact on
a) literacy rates.
b) building methods.
c) navigation skills.
d) artistic techniques

I believe the correct answer from the choices listed above is option C. The astrolabe, an example of improved technology of the 15th and 16th centuries, had the greatest impact on the navigation skills. Hope this answers the question. Have a nice day.

Given:

The graph of a function f(x).

To find:

The solution set for f(x)>0 and f(x)≤0.

Solution:

From the given graph it is clear that, the function intersect the x-axis at 3 points, i.e., x=-4, -3 and -2.

The graph is above the x-axis before -4 and between -3 and -2.

So, the solution set for f(x)>0 is .

The graph is below the x-axis between -4 and -3; and after -2. For f(x)≤0, those values are in the solution set for which f(x)=0, i.e., x-intercepts. So, we use close brackets in the interval notation.

So, solution set for f(x)≤0 is .