Answer:
Step-by-step explanation:
d is true
Answer:
370
Step-by-step explanation:
50 + x = 420
x = 420 - 50
x = 370
This is your perfect answer
Answer:
9.3 hours
Step-by-step explanation:
Given

Required
Hours of sunlight on Feb 21, 2013
First, calculate the number of days from Jan 1, 2013 to Feb 21, 2013

So:

So, we have:







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<em> --- approximated</em>
Answer: See below
Step-by-step explanation:
<u>To find the factor,</u>
f(x) = 0

<u>So,</u>
x = 0 multiplicity 2
x = -6 multiplicity 1
x = 6 multiplicity 1
For an even multiplicty, the graph touches the x-axis, and for an odd multiplicty, the graph crosses the x-axis
<u>Therefore,</u>
x = 0 multiplicty 2, Touch
x = -6 multiplicty 1, Cross
x = 6 multiplicty 1, Cross