Step-by-step explanation:
HOPE IT HELPS YA
Answer:
±90
Step-by-step explanation:
√(-225) · √(-36) = (15i)·(6i) = 90i² = 90·(-1) = -90
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On the other hand, ...
... √(-225) · √(-36) = √((-225)·(-36)) = √8100 = 90
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If you consider all the roots at each stage, the result is ±90. Since you're working with complex numbers here, it is reasonable to recognize every number has two square roots.
... √(-225) = ±15i
... √(-36) = ±6i
... √(-225) · √(-36) = (±15i)·(±6i) = ±90i² = ±90
Answer:
-9
Step-by-step explanation:
1y+11=20
-11=-11
-1y=20-11
-1=9
-9
Spencer would be the correct one because it's easier to keep your variables positive when trying to solve. Therefore, in order to keep the variable positive, one would have to add 4x to both sides.
76,500,000 in scientific notation is: 7.65x10^7
I believe you moved the decimal to the right 2 times.
Hope this helped :)
Have a great day
