Point B is the midpoint of line segment AC
so 2 * (AB) = AC
2(3x) = 5x + 21
6x = 5x + 21
x = 21
Answer:
B. 11c + 12d
Step-by-step explanation:
Given
9c + 12d + 2c
Combine the like terms
= 11c + 12d
Hope it will help :)
It is a positive-slope parabola with vertex of (0,16) "concave up"
Answer:
The width of the picture is 6 cm
Step-by-step explanation:
The length of the picture cm
The width of the picture cm
The length of a picture is 8 times the difference of the width and 4, so
- the difference of the width and 4 cm
- 8 times the difference of the width and 4 cm
- the length of the picture is 8 times the difference of the width and 4, so
Divide the equation by 8:
Rewrite it:
Add 4: