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USPshnik [31]
4 years ago
5

What exactly is meant by the expression 'Completing the Square'? Give an example as part of your explanation.

Mathematics
1 answer:
Annette [7]4 years ago
4 0

Answer:

completing the square is making the expression a bunch of perfect squares in order to solve it easily and find

Step-by-step explanation:

If i have the expression x^2 + 4x + 1 = 0

i move the one to the right side

x^2+4x=-1

then i add b over 2 squared to both sides

that is x^2+4x+4=3

now i would simply take the square root of both sides of this equation,

(x+2)^2=positive or negative 1.73

x+2=-1.73

x+2=1.73

then you subtract or add to solve for both possible values of x

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HELP PLSSSSS
ludmilkaskok [199]

Answer:

a=21

AB=23.9

BC=19.5

CD=(23.9)

AD=19.5

Step-by-step explanation:

Each pair of parallel sides are equal in a parallelogram. Sense both pairs use the same variable we can just choose the easiest to solve which would be:

a-1.5=19.5

add 1.5 to both sides

a=21

now substitute 21 in for a in each equation.

AB=CD so

AB=23.9

BC=AD so

BC=19.5

CD=(21)+2.9 so

CD=(23.9)

AD is given so

AD=19.5

4 0
2 years ago
Help ASAP Jake took out an interest-free loan of $2,401.56 from the bank to buy a car. He paid the bank $200.13 each month until
Bezzdna [24]

Answer:

<em>Answer: D. Jake paid his loan in 12 months</em>

Step-by-step explanation:

Jake took out an interest-free loan of $2,401.56 from the bank to buy a car.

Since he has to pay no interest for the loan, the monthly payments are totally used to cover the amount of the loan.

He paid the bank $200.13 each month, thus the total months needed to pay the loan is:

\frac{\$2,401.56 }{\$200.13}=12

Answer: D. Jake paid his loan in 12 months

6 0
3 years ago
PLEASE HELP !! ILL GIVE BRAINLIEST *EXTRA POINTS*.. <br> IM GIVING 40 POINTS !! DONT SKIP :((.
Mazyrski [523]
Negative slope & proportional
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Plzz help! bralilest asap
Nonamiya [84]

Answer:

C: a reflection across the y axis rotated 180 degrees

Step-by-step explanation:

The y axis is a vertical line, the same like that the trapezoid is flipped across

The trapezoid is rotated 180 degrees across the y axis

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4 years ago
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I need help for question 17 in my big ideas math homework, it says "Use the figure to find the measures of the numbered angles."
Dafna1 [17]

Answer:

can you show a pic tell me in the comments

Step-by-step explanation:

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