Exponents and exponential functions unit test
2 answers:
Answer:
A
Step-by-step explanation:
We can change the sign of an exponent if we change sides. This means <em>sign of exponent changes when we move the number (along with base) from numerator to denominator or from denominator to numerator.</em>
So 10 to the power -1 will change to 10 to the power 1 if we take the whole thing to the denominator (steps shown below):
Answer choice A is right.
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<h2>EQUATION</h2>
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Let's solve for f
1st step: Factor out variable f
2nd step: Divide both sides by 4p+3
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The given inequality :
Simplify :
<em>Multiply both side by (-1) and reverse the inequality :</em>
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<em>Divide the inequality by 3:</em>
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<em>i.e. x is less than or equal to (-3) </em>
Solution : x ≤ (-3)
<em>so, </em>
<em>x is lies in the half open interval of - infinity to (-3)</em>
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Interval Notation : (-infinity, -3]
Answer:
Solution : x ≤ (-3)
Interval Notation : (-infinity, -3]
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