The diagonal is the television screen measures 15 inches, and the height measures 9 inches. How wide is the screen

12 in

Step-by-step explanation:

Pythagorean Theorem Formula: a^2+b^2 = c^2

9^2 + b^2 = 15^2

81 + b^2 = 225

b^2 = 144 (square root both sides)

b = 12

the formula of a slope:

from a table we have

substitute:

the slope of f(x) is -1.

the graph of funcfion g(x) is a horizontal line. the slope of a horizontal line is equal 0. therefore the slope of g(x) is 0.

-1 < 0

step-by-step explanation:

no, her answer is not correct.   we square the lengths of all sides and then determine whether the pythagorean theorem holds here:

9² + 15² = 306.   this is not equal to the square of the longest side ( that square being 395.   answer c is correct.