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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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Can someone help me pls,really need help with this.ty:)
Inessa [10]
F because I had a question like that
8 0
3 years ago
Read 2 more answers
Allison's team scored 78 points in total. Nineteen of the baskets counted 1 point each. The remaining 27 baskets we're 2 point a
sweet [91]

Answer:

1 point baskets = 19

2 point baskets = 22

3 point baskets = 5

Step-by-step explanation:

Given:

Number of points scored (P) = 78

Number of 1 point baskets = 19

Number of 2 and 3 points basket = 27

Let the number of 2 point baskets be 'x' and 3 point basket be 'y'.

Therefore,

x+ y=27\\\\y=27-x

Now, points scored per 2 point basket = 2

So, points scored for 'x' baskets = 2x

Also, points scored for 'y' baskets = 3y=3(27-x)=81-3x

Now, total points scored is equal to the sum of 1 point baskets, 2 point baskets and 3 point baskets. Therefore,

P=19+2x+81-3x\\\\78=100-x\\\\x=100-78\\\\x=22

Therefore, number of 2 point baskets = 22

Now, number of 3 point baskets = 27 - 22 = 5

So, there were 19 one point baskets, 22 two point baskets and 5 three point baskets.

7 0
3 years ago
Read 2 more answers
I need help to find the slope between these two points
SCORPION-xisa [38]

Answer:    

11/2

Step-by-step explanation:

\frac{y_{2} -y_{1} }{x_{2} -x_{1}}

8 0
4 years ago
Gary is trying to save $60 to buy new parts for his bike. He has saved 45% of
eimsori [14]

Answer:

Step-by-step explanation:

Gary need 60 dollars, but he saved only 45%

60*(45/100)=27

he saved only 27 dollars

4 0
3 years ago
What is the area of a square with lengths of 7 inches
ludmilkaskok [199]

✧・゚: *✧・゚:*    *:・゚✧*:・゚✧

                  Hello!

✧・゚: *✧・゚:*    *:・゚✧*:・゚✧

❖ The area of a square with lengths of 7 inches is 49 inches.

In a square, all sides are equal so if one side is 7 inches, the rest of the sides are 7 inches. You multiply 7 x 7 because you only need 2 sides to find the area because the area of a square is l x w. (If another sides length is stated, that is the length that you will use.

~ ʜᴏᴘᴇ ᴛʜɪꜱ ʜᴇʟᴘꜱ! :) ♡

~ ᴄʟᴏᴜᴛᴀɴꜱᴡᴇʀꜱ

3 0
3 years ago
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