Answer:
3a +16b
Step-by-step explanation:
Use the distributive property to eliminate parentheses:
7a +10b -4a +6b
Group like terms, if you need to:
(7a -4a) +(10b +6b)
Simplify each group:
3a +16b
Answer:
8°
Step-by-step explanation:
The sum of the measures of the exterior angles of a any polygon = 360.
So, x + 2x + 4x + 5x + 6x + 8x + 9x + 10x = 360
45x = 360
x = 8°
An estimation is not exact..
317...rounds to 300
289...rounds to 300
--------add
total : 600 (estimation) <==
actual miles driven is : 317 + 289 = 606
Answer:
x=46
Step-by-step explanation:
add the 2 equations and set them equal to 180, and then do the math from there.
13. -5, 0, -7, -4
14. 10, 5, -2, 1
15. -1, -6, -13, -10
16. 13, 8, 1, 4