Answer:
Your answer would be A:12
Step-by-step explanation:
x^2 - 4
------------------------------
x + 7 | x^3 + 7x^2 - 4x - 28
x^3 + 7x^2
------------------
0 - 4x - 28
-4x - 28
-------------
0
Now we know that
x^3 + 7x^2 - 4x - 28 = (x^2 - 4)(x + 7)
x^2 - 4 can be factored since it is the difference of two squares.
x^2 - 4 = (x + 2)(x - 2)
The complete factoring is:
x^3 + 7x^2 - 4x - 28 = (x +2)(x - 2)(x + 7)
Answer: AB = 150 degrees
Step-by-step explanation: 90 + 60 = 150
Answer:
9.929
Step-by-step explanation:
-1.091 + 12.12 = 11.029
11.029+(-1.1) = 9.929
169.65mm
A=2πrh+2πr2=2·π·3·6+2·π·32≈169.646
