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Answer:
x=±√−9
No real solutions.
Step-by-step explanation:
Step 1: Add 3x^2 to both sides.
27+3x2=−3x2+3x2
3x2+27=0
Step 2: Subtract 27 from both sides.
3x2+27−27=0−27
3x2=−27
Step 3: Divide both sides by 3.
3x2
/3
=
−27
/3
x2=−9
Step 4: Take square root.
x=±√−9
Answer: Use operations combined terms and solve by insulating the
Equation
Step-by-step explanation:
X>5
Since 2x>11-1 is 2x>10 divide by 2
And we get x>5
The probability of 2 heads:
105:500
This can be simplified further. If you divide them both by 5, you get:
21:100
That is the answer, as it cannot be simplified any further.
The probability of one head:
275:500
This can be simplified further. If you divide them both by 25, you get:
11:20
That is the answer, as it cannot be simplified any further.
The probability of no heads:
120:500
This can be simplified further. If you divide them both by 20 you get:
6:25
That is the answer, as it cannot be simplified any further.
So:
a) 21:100
b) 11:20
c) 6:25
