Answer:
x = -1 or x = -y
Step-by-step explanation:
Solve for x:
(x + 1) (x^2 + 2 x y + y^2) = 0
Split into two equations:
x + 1 = 0 or x^2 + 2 x y + y^2 = 0
Subtract 1 from both sides:
x = -1 or x^2 + 2 x y + y^2 = 0
Write the left hand side as a square:
x = -1 or (x + y)^2 = 0
Take the square root of both sides:
x = -1 or x + y = 0
Subtract y from both sides:
Answer: x = -1 or x = -y
Adding a number to the set such that the number is further away from the mean, will increase the SD. This is because the average distance of the numbers from the mean increases.
Answer:
18
Step-by-step explanation:
by similarity, A corresponds to R, B to T, C to S
we know this bc all 3 angles are the same, so AAA similarity
looking at BC and TS, TS is 4/3 times the length of BC
BC is 3/4 times the length of TS
since the triangles are similar, this ratio applies to all lengths
so SR, which is the corresponding length to AC, is 24, so AC = 24 * 3/4 = 18
Answer:
8c2 - 4c - 12
Step-by-step explanation:
