Darius reads 2/10 of his book in 3 days. He says that if he reads the rest of the book at the same speed, it should take him 15 more days to finish the book. Is Darius correct?

Darius is correct

Step-by-step explanation:

Darius reads of his book in 3 days

In 1 day, he reads of the book.

Therefore in 15 days,  He reads

which is the whole of the book.

center (1,3) with radius 6

step-by-step explanation:

we must complete the square to find the center and radius of the circle.

first make sure the x and y squared terms have 1 as their coefficients. we also make sure x and y terms together.

we now create space between the x and y terms with parenthesis.

we complete the square by taking the middle terms -2x and the -6y - divide each and square them.

we add the squares to both sides.

simplify.

and write the quadratics in factored form.

the center is (h,k) or (1,3). the radius is the square root of 36 which is 6.