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Tems11 [23]
3 years ago
12

If using the method of completing the square to solve the quadratic equation x^2+15x+21=0, which number would have to be added t

o "complete the square"?
Mathematics
2 answers:
Anit [1.1K]3 years ago
8 0

Step-by-step explanation:

the answer is in the above image

Anna35 [415]3 years ago
3 0

Answer:

my answer is 225/5 sorry comments for wrong

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In Oregon, the mean annual rainfall in Rockaway Beach is 118.88 inches and the mean annual rainfall in Falls City is 122.28 inch
JulsSmile [24]

Answer:

Step-by-step explanation:

Based on this information, you could conclude that the annual rainfall in Falls City is generally more than that of the annual rainfall in Rockaway Beach. This is based on the information provided since the numbers given are the mean annual rainfall. Meaning that this is the average amount of rain that falls in any given year in that specific location. Since the amount provided for Falls City is a larger number then it means it gets more rainfall than Rockaway Beach on average and would therefore be the safest conclusion that can be made.

5 0
2 years ago
-5cos105°+5cos165° =??​
almond37 [142]

Answer:

-3.53553390593

Step-by-step explanation:

5(cos165-cos105)=-3.53553390593

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3 years ago
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hram777 [196]
The transformation is rotation.
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Goryan [66]

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I believe it is C

Step-by-step explanation:

message back if it is

5 0
2 years ago
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Therefore, the product 0.5 × (–2) is
Savatey [412]

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-1

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6 0
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