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Sphinxa [80]
3 years ago
10

Give an example of how you would solve an equation by completing the square. Describe the steps.

Mathematics
1 answer:
klemol [59]3 years ago
4 0

Answer:

Step-by-step explanation:

to solve an equation by completing the square in a quadratic formula

f(x)=ax²+bx+c

example :x²-6x-16=0

first rearrange if necessary, move the constant to one side .

x²-6x=16

second you find a new term to complete the square which is (b/2)², and add the term to both sides.(6/2)²=3²=9

x²-6x+9=16+9

x²-6x+9=25

third  factorize : find the common factor between 6 and 9 which is 3

x²-6x+9=25

(x-3)²=25

last solve for x: (x-3)²=25

x-3=√25

x=3±5

x=3+5=8 or 3-5=-2

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2 years ago
A canoe in still water travels at a rate of 12 miles per hour. The current today is traveling at a rate of 2 miles per hour. If
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Answer:

It’s 60miles

Step-by-step explanation:

We assume the trip is "d" miles and that the "extra hour" refers to the additional time that a current of 2 mph would add. That is, we assume the reference time is for a current of 0 mph.

The time with no current is ...

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The one-way distance is 60 miles.

7 0
2 years ago
The circumference of the target above is 6,537.48 mm.
malfutka [58]
2,082 mm







Hope this helps
5 0
2 years ago
-m
dimaraw [331]

-m - (7/8) = -10

m = 10 - (7/8)

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hope it helps...!!!

6 0
1 year ago
Please help me with this.
kramer

Answer:

c

Step-by-step explanation:

cause i am a math mttition

7 0
3 years ago
Read 2 more answers
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