The circumference is 56.18pi
Answer:
y = 5 sin (2x) + 4
Step-by-step explanation:
this is sines function,
the amplitude is [9 - (-1)]/2 = 10/2 = 5
the period is 2πx/π = 2x
the x-axis of actual function is at y = 4
so, the function is :
y = 5 sin (2x) + 4
Subtract 15 from both sides that gets rid of 15 and your left with 3b =30b divide 3 on both sides and the answer is 10
9514 1404 393
Answer:
A:
Step-by-step explanation:
Side length ratios in a 30°-60°-90° "special" triangle are (shortest to longest):
1 : √3 : 2
Comparing to the given side lengths, we have ...
1 : √3 : 2 = x : 20 : y
Making these ratios the same gives ...
x = 20/√3 = (20√3)/3
y = 2x = (40√3)/3
These values match choice A.