Find the area of the triangle.
10 ft
14 ft
The area of the triangle is
square feet.

140

Step-by-step explanation:

times 10 and 14 together

A value that is higher than 3 as the average number of cavities teenagers have

Step-by-step explanation:

The value computed by the dentist which creates a rejection region means that the value falls within the range of the range of values that leads the researcher to reject the null hypothesis.

In this study, the null hypothesis is that the average number of cavities is less than or equal to three.

Thus, since the dentist's computed value falls within the rejection region, it means his computed value will be more than 3 as the average number of cavities.

Hope that helps...