Evaluate piecewise functions Pls answer
2 answers:
Step-by-step explanation:
<u>Step 1: Find which piece-wise function it is in</u>
<em>Equation 1</em> → x < -7
Let x = -5 → (-5) < -7 ← False
<em>Equation 2 </em>→ -7 ≤ x < -5
Let x = -5 → -7 ≤ (-5) < -5 ← False
<em>Equation 3 </em>→ x ≥ -5
Let x = -5 → (-5) ≥ -5 ← True
<u>Step 2: Find the value of h(-5)</u>
Answer:
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Answer:
Her usual rate is 0.8333 miles per hour.
Step-by-step explanation:
The velocity formula is given by:
In which d is the distance and t is the time.
She completed the first half of the walk 1 mi/h faster than usual
Her usual rate is v. 1mph faster is v + 1.
The second half of the walk 2 mi/h slower than the first half.
The first half is v + 1.
2mph slower is v + 1 - 2 = v - 1. Then
Total rate:
7.2 hours, and 6 miles. So
One half is v+1 and the other is v - 1. This is why each is multiplied by 0.5.
Her usual rate is 0.8333 miles per hour.
Step
<u>Find the factors of each number</u>
we know that
Step
<u>Find the greatest common factor (GCF)</u>
the GCF is equal to---------->
therefore
<u>the answer is</u>
The GCF is