Which of the following is a result of shifting a circle with equation

(x - 1)2 + (y - 4)2 = 16

to the right 4 units?

a. the x-coordinate of the center of the circle increases by 4.
b. both the x- and y-coordinates of the center of the circle decrease by 4.
c. the y-coordinate of the center of the circle increases by 4.
d. both the x- and y-coordinates of the center of the circle increase by 4.

Ineed to know the answer to this algebra question.

Astudy was interested in determining if eating milk chocolate lowered someone's cholesterol levels. ten people's cholesterol was measured. then, each of these individuals were told to eat 100g of milk chocolate every day and to eat as they normally did. after two weeks, their cholesterol levels were measured again. is there evidence to support that their cholesterol levels went down? how should we write the alternative hypothesis? (mud = the population mean difference= before - after)a. ha: mud = 0b. ha: mud > 0c. ha: mud < 0d. ha: mud does not equal 0

Olivia is using 160 quilt squares to make a red, yellow, and blue quilt if 25% of the quilt are red and 30% are yellow how many quilt squares are blue