Answer:
here this should help you understand.
Step-by-step explanation:
https://www.khanacademy.org/math/algebra/x2f8bb11595b61c86:quadratic-functions-equations/x2f8bb11595b61c86:completing-square-quadratics/v/completing-the-square-to-solve-quadratic-equations
Answer:
Is x = 4 a solution to the equation 6 = x + 2? YES
Is x = 4 a solution to the inequality 2x ≥ 9? NO
Step-by-step explanation:
Is x = 4 a solution to the equation 6 = x + 2? YES
we cans solve the equation 6=x+2 by clearing for x:
6 = x + 2
we move the +2 on the right as a -2 to the left:
6 - 2 = x
4 = x
this way we find that indeed x = 4 is a solution to 6 = x + 2.
Is x = 4 a solution to the inequality 2x ≥ 9? NO
Let's solve the inequality by clearing for x:
2x ≥ 9
we move the 2 that is multiplying on the left to divide on the right side:
x ≥ 9/2
x ≥ 4.5 ⇒ <u>x must be greater than or equal to 4.5</u>
thus, <u>4 is not a solution to the inequality</u> because 4 is less than 4.5
Answer:
go to the left to -85 then go up to 52.
Step-by-step explanation:
x=-85
y=52
Answer:
the answer is C. 12.5
Step-by-step explanation:
its 12.5 because 60 min = 10 mile
and then 15 + 60 = 75 and a quarter of 60 is 15 which a quarter of 10 is 2.5 which you than add up to get 12.5
The sum of the measures of the exterior angles of a polygon, taken one per vertex, is 360.
z - 13 + z + 10 + z = 360
3z - 3 = 360
3z = 363
z = 121
z - 13 = 121 - 13 = 108
Answer: z - 13 = 108 degrees
