3. A building stands on level ground. The measure of the angle of elevation of the top of the building, taken at a point 400 feet from the foot of the building, is 31 degrees. Find, to the nearest tenth of a foot, the height of the
building

12,400

Step-by-step explanation:

so what you are going to first is 400 times 31 which is 12,400

(- 1, 0 )

step-by-step explanation:

an x- intercept is where the function crosses the x- axis.

to find the x- intercept/s look for the value of x when f(x) = 0

from the given table there are 3 values of x where f(x) = 0

when x = - 1, x = 2, x = 3

the one that is listed is (- 1, 0 )

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.