Tia's teacher asked her to find the product of 8 and 207 in her head. which of the following describes the best way for tia to mentally calculate the answer? multiply 8 by 200 and subtract 8 times 7. multiply 8 by 200 and add 8 times 7. multiply 8 by 210 and subtract 8 times 7.

the answer is number 2

Step-by-step explanation:

207                    200

x   8                    x   8                                                                                                                                                    

1656                   1600

                         + 56

                           1656

2

Step-by-step explanation:

trust me

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.