12b-15>21
+15 +15
12b > 36
----- ----
12 12
b = 3
Answer:
(x, y ) = ( 
, 
)
Step-by-step explanation:
given the 2 equations
4x + 2y = 7 → (1)
y = 5x → (2)
Substitute y = 5x into equation (1)
4x + 2(5x) = 7
4x + 10x = 7
14x = 7 ( divide both sides by 14 )
x = 
=
substitute this value into equation (2)
y = 5 × =
Answer:
172.12 sq in
Step-by-step explanation:
The figure is comprised of a semicircle, and 2 rectangles
Area of semicircle = 1/2(3.14)4^2 = 25.12
Area of rectangle with length of 9 and width of 7 = 7(9) = 63
Area of rectangle with length of 14 and width of 6 = 6(14) = 84
Total area = 25.12 + 63 + 84 = 172.12 sq in
I don't get it. where is Angle K
For #13 it is -1. Sorry I couldn't do the other ones...
