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Citrus2011 [14]
3 years ago
6

When deriving the quadratic formula by completing the square, what expression can be added to both sides of the

Mathematics
2 answers:
Roman55 [17]3 years ago
8 0

it can also be explained as D on edg if you still needed the answer :)

liubo4ka [24]3 years ago
7 0

Answer:

The element you add is      b^2 / 4a

Step-by-step explanation:

The element you add is      b^2 / 4a

Remember that

a x^2 + bx +c  \\= a ( x^2 +(b/a)x ) + c

So, in order to complete the square you add   (b/2a)^2

But when you multiply times  a   you get

b^2 / 4a

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Sholpan [36]
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3 years ago
This is homework. please help with the answer for both 11a and 11b :))
RideAnS [48]
11a:
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3 0
3 years ago
jill traveled to the ferry office and back. the trip there took 5 hours and the trip back took 4 hours. she averaged 65 mph on t
antoniya [11.8K]

We know from physics class that the formula for distance of a linear motion is given as:

d = v t

Where,

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v = average velocity

t = time it took to reach the destination

Since the distance going to the office and back is just similar, therefore we can simply equate the two:

v1 t1 = v2 t2

Where 1 signifies going to the office and 2 signifies going back from the office. Therefore this yields to:

v1 * 5 hours = 65 mph * 4 hours

v1 = 52 mph

 

<span>Answer: The average speed going to the office is 52 mph.</span>

4 0
3 years ago
Plz help me! I will make you the brainliest! Thanks!
Volgvan

Answer:

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Step-by-step explanation:

I hope this helps!

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Which sales accounts normally have a debit balance?
kolbaska11 [484]

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