Answer:
-24a² - 42a - 28
Simplified form = 12a² + 21a + 14
Step-by-step explanation:
-4(7 + 3a) - 6a(4a - 5) (distribute -4)
-28 - 12a -6a(4a - 5) (distribute -6a)
-28 - 12a -24a² - 30a (collect like terms)
-24a² - 42a - 28
We can simplify
-24a² - 42a - 28 (divide -2)
12a² + 21a + 14
Hope this helps ya! Keep smiling!
Answer: The radius of the track = 0.64 mi
Step-by-step explanation:
Fr circular track , Total distance covered around it = (Number of laps) x (Circumference)
As per given,
32 mi = 8 x (Circumference)
Circumference = 
Also, Circumference = 
, where r= radius so,
Put 
Hence, the radius of the track = 0.64 mi
Answer:
∠ G = 121°
Step-by-step explanation:
The sum of the 3 angles in a triangle = 180°
Sum the 3 given angles and equate to 180
x + 3x + 25 + x - 5 = 180 , that is
5x + 20 = 180 ( subtract 20 from both sides )
5x = 160 ( divide both sides by 5 )
x = 32
Thus
∠ G = 3x + 25 = 3(32) + 25 = 96 + 25 = 121°
Answer:
53
Step-by-step explanation:
