What are the period and amplitude of the function? period: 4; amplitude: 3

period: 4; amplitude: 2.5

period: 5; amplitude: 3

period: 5; amplitude: 2.5

Help

Step-by-step explanation:

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The period is the distance between one peak and the next peak ( the two highest points)

One peak is at x= 0, the next peak is at x = 5 then the third peak is at x = 10.

Subtract to find the distance: 10-5 = 5 and 5-0 = 5 so the period is 5.

The amplitude is the distance from the centerline to the peak. First find the highest and lowest points to finch the center:

Highest = 3 lowest = -2. The distance between the highest and lowest is 5 so the centerline would be 5/2 = 2.5

The amplitude would be the distance from center to peak which would be 2.5

The answer is:

Period = 5, amplitude = 2.5

8496 cars

step-by-step explanation:

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.