Explain the difference among these expressions -x^2 , (- x)^2 and _(- x)^2
1 answer:
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For this case we have the following expression:
We must clear the value of x in the expression.
For this, we must follow the following steps:
1) add by on both sides of the equation:
2) multiply both sides by 1 / a:
3) Common factor 1 / a:
Answer:
We must clear the value of x in the expression.
For this, we must follow the following steps:
1) add by on both sides of the equation:
2) multiply both sides by 1 / a:
3) Common factor 1 / a:
Answer:
Answer:
c. 0.6
Step-by-step explanation:
A student cannot receive an A or a B simultaneously, so .
Grade of A equals .30 and the probability of receiving a grade of B equals .30.
This means that
The probability that a randomly selected student from this class will receive either an A or a B equals:
This is:
So the probability is 0.6, and the correct answer is given by option c.