Answer:
9 hours
Step-by-step explanation:
36 degrees total /4 degrees per hour = 9 hours
Answer:
Step-by-step explanation:
1 ) k²-8k = 0
k(k-8)=0
k = 0 or k=8
2) a²+5a=0
a(a+5) = 0
a=0 or a = - 5
3 ) 6n²+5n-25=0
delta = b²-4ac b =5 and a = 6 and c= - 25
delta = 5²-4(6)(-25) = 625 = 25²
n 1 = (-5+25)/12 = 20/12 = 5/3
n 2 = (-5-25)/12 = - 30/12 = -5/2
same method for 4) and 5)
Answer:
Option C,
Step-by-step explanation:
<u>Step 1: Set x to -1</u>
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Answer: Option C,
Answer:
and
Step-by-step explanation:
Given
See attachment
Required
Identify the vertical angles
Keynotes
- Vertical angles opposite one another
- Vertical angles are equal to one another
Using the keynote as a reference, we have the following observation from the attachment:
and are opposite
and are congruent
Hence:
and are vertical
<em>(d) is correct</em>