Which of the following is the best estimate of the circumference of a circle that has a diameter of 7 feet?
11 ft
14 ft
42 ft
21 ft

Can someone check my answer? you

Use the graph of the sine function y=2sinθ shown below

Raj encoded a secret phrase using matrix multiplication. using a = 1, b = 2, c = 3, and so on, he multiplied the clear text code for each letter by the matrix to get a matrix that represents the encoded text. the matrix representing the encoded text is . what is the secret phrase? determine the location of spaces after you decode the text. yummy is the corn the tomato is red the corn is yummy red is the tomato