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3 years ago

13

2×x×3×y

\times 3 \times y" alt="2 \times x \times 3 \times y" align="absmiddle" class="latex-formula">

1 answer:

Zigmanuir [339]3 years ago

7 0

Answer:

6xy

Step-by-step explanation:

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(+25 points!) Completeing the square.... Please help meee:)

katen-ka-za [31]

Answer:

$\large \boxed{\sf \ \ 3 \ \ }$

Step-by-step explanation:

Hello, please consider the following.

$3x^2+3y^2+12x-9y+12=0\\\\\text{*** divide by 3 both sides***}\\\\x^2+y^2+4x-3y+4=0\\\\\text{*** Let's notice that: ***}\\\\*** \ x^2+4x=(x+2)^2-2^2=(x+2)^2-4 \ \ and \\\\*** \ y^2-3y=(y-\dfrac{3}{2})^2-\dfrac{3^2}{2^2}=(y-\dfrac{3}{2})^2-\dfrac{9}{4}\\\\\text{ *** complete the two squares ***}\\\\x^2+y^2+4x-3y+4=(x+2)^2-4+(y-\dfrac{3}{2})^2-\dfrac{9}{4}+4=0$

$\text{*** simplify ***}\\\\\large \boxed{\s \ \ (x+2)^2+(y-\dfrac{3}{2})^2=\dfrac{9}{4} \ \ }$

So, the radius of the circle is...

$\sqrt{\dfrac{9}{4}}=\dfrac{3}{2}$

..and the diameter is two times the radius, so this is is

$\large \boxed{\sf \ \ 3 \ \ }$

Hope this helps.

Do not hesitate if you need further explanation.

Thank you

7 0

3 years ago

Please help me lollll

WITCHER [35]

Answer:

lolll what

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Write the expression for 100 less than the sum of 3 and x

Likurg_2 [28]

(3 +x) - 100
is the expression

7 0

3 years ago

Read 2 more answers

So the laptop costs $2350?

geniusboy [140]

So what is the question?

4 0

3 years ago

Measured in a map with a scale of 150 miles per inch, the distance from Chicago to Boston is 4.75. How many miles is it from Chi

san4es73 [151]

The actual distance from Chicago to Boston is 712.5 miles.

Step-by-step explanation:

Given,

Scale on map = 150 miles per inch

Distance from Chicago to Boston on map = 4.75 inches

Actual distance = Distance on map * 150 miles

Actual distance = 4.75 * 150

Actual distance = 712.5 miles

The actual distance from Chicago to Boston is 712.5 miles.

Keywords: scale, multiplication

Learn more about multiplication at:

#LearnwithBrainly

7 0

4 years ago