All the angles should add up to 360°.
8x+10x+9+21x-12+90=360°
Group like terms together.
So,8x+10x+21x+9+90-12=360
39x+87=360
39x=360-87
39x=273
x=7
Given:
The triangle ABC is reflected over the x-axis.
The distance between point A and A’ is 14.
To find:
The distance between the x-axis and A’.
Solution:
If a figure is reflected across the x-axis then the corresponding parts are mirror image of each other about the x-axis.
It means the distance between A and x-axis is same as the distance between x-axis and A'.
The distance between point A and A’ is 14.
Let d be the distance between the x-axis and A’. Then,




Therefore, the correct option is 1.
Thrice means three, so 3 times the difference of x and 4.
3(x - 4) < 9
multiply 3 by all in parentheses
(3*x) + (3*-4) < 9
3x - 12 < 9
add 12 to both sides
3x < 21
divide both sides by 3
x < 7
ANSWER: x < 7
Hope this helps! :)
Answer:38 min
Step-by-step explanation:
Given
Cutting time 
Assembly Line time 
to move a batch of rugs from cutting to assembly
Value-added refers to a process or phase in a system that turns raw materials or work in progress into much more desirable goods and services for downstream consumers.
thus value added time is
Answer:
630 just divide 180 by 2, you'll get 90 the multiply it by 7