4a+9=(-9+30-25). 4a+9=30-34. 4a+9=-4. 4a=-13. A=-3.25 :)
Answer:
no
Step-by-step explanation:
the arrow is between 140 and 130 so it will be 135. If it was between 140 and 150 then it could be 145 degrees.
Answer:
10.5 cm^2
Step-by-step explanation:
Since we have two sides and the angle between those sides, we can use the alternative area formula:

a and b are the two sides while C is the angle in between the two sides.
Plug in the numbers:

Recall the unit circle. Sin(150) is 1/2.


Answer:
Shapes 1 and 3 are congruent
Step-by-step explanation:
The only thing different between them is that the first one is tilted to look different.