Tyree is determining the distance of a segment whose endpoints are A(–4, –2) and B(–7, –7).

Step 1: d = StartRoot (negative 7 minus (negative 7)) squared + (negative 4 minus (negative 2)) squared EndRoot

Step 2: d = Square root (-7 + 7) squared + (- 4 + 2) squared

Step 3: d = Square root (0) squared + (- 2) squared

Step 4: d = Square root 0 + 4

Step 5: d = StartRoot 4

Therefore, d = 2.

Which best describes the accuracy of Tyree’s solution?
A. Tyree’s solution is accurate.
B. Tyree’s solution is inaccurate. In step 1, he substituted incorrectly.
C. Tyree’s solution is inaccurate. In step 2, he simplified incorrectly. Tyree’s solution is inaccurate. In step 3, he added incorrectly.

what's that

step-by-step explanation:

b and c

6.5

step-by-step explanation:

you said it was in the question

~courtney

{x = -1/2 ,   y = -1

step-by-step explanation:

solve the following system:

{2 x + y = -2

{10 x - 3 y = -2

in the first equation, look to solve for y:

{2 x + y = -2

{10 x - 3 y = -2

subtract 2 x from both sides:

{y = -2 x - 2

{10 x - 3 y = -2

substitute y = -2 x - 2 into the second equation:

{y = -2 x - 2

{10 x - 3 (-2 x - 2) = -2

10 x - 3 (-2 x - 2) = (6 x + 6) + 10 x = 16 x + 6:

{y = -2 x - 2

{16 x + 6 = -2

in the second equation, look to solve for x:

{y = -2 x - 2

{16 x + 6 = -2

subtract 6 from both sides:

{y = -2 x - 2

{16 x = -8

divide both sides by 16:

{y = -2 x - 2

{x = -1/2

substitute x = -1/2 into the first equation:

{y = -1

{x = -1/2

collect results in alphabetical order:

answer:   {x = -1/2 ,   y = -1