Enter the amplitude of the function. f(x)=3cosx

amplitude = 3

Step-by-step explanation:

given a cosine function in standard form, that is

y = acosx, then

amplitude = | a |

Hence for f(x) = 3cosx, amplitude = | 3 | = 3

the answer is b.

step-by-step explanation:

by the trigonometric ratio tangent, tangent equals opposite divided by adjacent.

therefore, tan(50) equals ac/3

multiply each side by 3 to get: ac=3tan(50)

the answer is b.

maximum area = xy = (16)(32) = 512 ft2

to maximize the area of the garden, the side of the fence parallel to the side of the house should be 32 ft long, and the other two sides should both have length 16 ft.'

source