$y=2\cos(3x-2\pi)\\\\\text{The period of a cosine is}\ 2\pi.\\\\P-period\\\\2\cos(3(x+P)-2\pi)=2\cos(3x-2\pi)\qquad\text{divide both sides by 2}\\\\\cos(3x+3P-2\pi)=\cos(3x-2\pi)\iff3x+3P-2\pi=3x-2\pi+2\pi\\\\3x+3P-2\pi=3x\qquad\text{subtract 3x from both sides}\\\\3P-2\pi=0\qquad\text{add}\ 2\pi\ \text{to both sides}\\\\3P=2\pi\qquad\text{divide both sides by 3}\\\\\boxed{P=\dfrac{2\pi}{3}}\\\\Answer:\ \boxed{D.\ \dfrac{2\pi}{3}}$

3 0

2 years ago

Hii can i pls have help, i will give brainliest:D

tankabanditka [31]

Answer:

Step-by-step explanation:

half gallon is 64 oz. 256 ÷ 64 is 4

7 0

2 years ago

Read 2 more answers

In the situation described, determine the INDEPENDENT VARIABLE: The height of a plant and the amount it is watered

Oduvanchick [21]

You cant answer this? but Y= dependent and X = INDEPENDENT, the dependent is the one it is asking for or the one that needs to be solved the independent is the one given in the question

4 0

2 years ago

Please answer i need to go through this easy

GalinKa [24]

Answer:

Step-by-step explanation:

Henry's balloon started at 10 miles but tasha started at 15 and Henry's travelled at 7 mph but tashas travels at 6mph

7 0

2 years ago