15-27b+11=-244
26-27b=-244
-27b=-270
b=10
The answer is 12 because you put -3 in the C places which gets you 9 – -3 and then you follow the signs which you would have to add them and get 12
Answer:
170 unit sq
Step-by-step explanation:
Area of parallelogram = b x h= 24 x 6= 144 unit sq.
Area of semicircle = π x /2
=> 3.14 x /2
(4 as the 8 given should be halved to find the radius of the semicircle)
=>3.14 x 16/2
=> 3.14 x 8 = 25.12 unit sq.
Therefore, 144 + 25.12 = 169.12
rounded to the nearest tenth = 170 unit sq
Part b first slide
if two angles are supplemenrtary their sum=180
if they are congruent x+x=180, 2x=180, x=90
slide 2
part b do not
all others I think correct