Answer:
x = 70°
Step-by-step explanation:
the interior angle which is supplemental to 140° is 40°
the sum of the interior angles of any triangle is 180°
so:
180° = 40° + 2x
subtract 40° from each side of the equation:
2x = 140°
x = 70°
Each red marble is worth 6 points. For r red marbles, that is 6r points.
Each blue marble is worth 2 points. For b blue marbles, that is 2b points.
Now add the two expression of points to find the total number of points.
total score = 6r + 2b
Answer:
a
Step-by-step explanation:
0.45013 in scientific notation is: 4.5013 x 10-1
To find the vertex of a quadratic equation, determine the coefficients of the equation, then use the vertex x-coordinate formula to find the value of x at the vertex. Once the x-coordinate is found, plug it into the original equation to find the y-coordinate.