Answer:
solution
here;
answer D
Step-by-step explanation:
- 3(x^2 +2×5×x +25)
- 3(x+5)^2
Answer: x = 27
Step-by-step explanation:
x/3 - 11 = -2
Add 11 to each side
x/3 = 9
Multiply each side by 3
x = 27
x cannot equal 21.
21/3 - 11
21/3 = 7
7 - 11 = -4
-4 does not equal -2
Therefore, x cannot equal 21.
Answer:
the second answer
Step-by-step explanation:
Answer:
Area of larger circle = 
Area of smaller circle = 
Probability that it lands in the shaded area (smaller circle):
28.26 ÷ 379.94 = 0.07438... = 0.07 (nearest hundredth)
Answer:
(4b-9) (4b+9)
Step-by-step explanation:
16b^2 – 81
This is the difference of squares
(a^2 -c^2) = (a-c) (a+c)
a^2 = 16b^2 so a= 4b
c^2 = 81 so c = 9
(16b^2 – 81) = (4b-9) (4b+9)
