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2 years ago

Rewrite the equation by completing the square.

Mathematics

1 answer:

dlinn [17]2 years ago

8 0

Answer:

(x + 1/2)^2 = 289/4

Step-by-step explanation:

x^2+x-72=0

Write like this:

(x + ___)^2 = ___

put 72 on other side

x^2 + x = 72

x^ + x + (1/4) = 72 + (1/4)

(x + 1/2)^2 = 289/4

x + (1/2) = 17/2

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Solve the follwing please:

myrzilka [38]

$\dfrac{(-9-11)/(-4)}{-7^2+(11 \times 2^2)}\\\\=\dfrac{(-20)/(-4)}{-49+44}\\\\=\dfrac{5}{-5}\\\\=-1$

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1 year ago

Write an expression for the model. Find the sum.

AVprozaik [17]

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3 years ago

Pls help or i will get an F<br> one easy question

Ne4ueva [31]

Answer:

p = 5.88/3 –.75

The original be price was $1.21 per lb pound

Step-by-step explanation:

To find the new price per pound, divide 5.88 by 3.

Then subtract .75 from the new be price to find the original price.

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3 0

2 years ago

Help!<br> What would d be?

Oxana [17]

Answer:

d = 17.5499287748 inches or 17.5 inches to 1 decimal place

Step-by-step explanation:

find the diagonal line passing through the middle of the bottom rectangle:

a² + b² = c²

10² + 8² = c²

100 + 64 = 164

c² = 164

c = √164

c = 12.8062484729

find d:

a² + b² = c²

12² + 12.80624847298² = c²

144+ 164 = 308

c² = 308

c = √308

c = 17.5499287748

therefore d = 17.5499287748 inches or 17.5 inches to 1 decimal place

6 0

3 years ago

4/9 + 1/3 = ??<br><br> Simplify answer fully

galben [10]

Multiply the second fraction by three.

4/9 + 3/9 = 7/9

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3 years ago