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3 years ago

Brainly to whomever somehow solves for x. I WILL REPORT SCAMS AND UNHELPFUL "WHAT?" ANSWERS.

Mathematics

1 answer:

cestrela7 [59]3 years ago

3 0

Answer:

$x=\frac{33}{7}$

Step-by-step explanation:

Since ED is parallel to CA, the two triangles in the figure share all 3 angles and therefore must be similar. By definition, the corresponding sides of similar polygons are in a constant proportion.

Therefore, we have:

$\frac{11}{11+x}=\frac{14}{20},\\14(11+x)=20\cdot 11,\\11+x=\frac{20\cdot 11}{14},\\x=\frac{110}{7}-11=\boxed{\frac{33}{7}}$

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Step-by-step explanation:

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3 years ago

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2 years ago

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Find all complex solutions of 5x^2-6x+2=0.

gregori [183]

We use quadratic formula for that one
remember that √-1=i

so

for
ax^2+bx+c=0
$x=\frac{-b+/-\sqrt{b^2-4ac}}{2a}$
so
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8 0

3 years ago

Find the sum of the polynomials.<br>x² + 5x² + 9x - 6<br>9x² - 4x + 6

igomit [66]

Answer:

15x^2+5x

Step-by-step explanation:

If adding both together, this is your answer.

Hope this helps!

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2 years ago

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At Super Grocery, potatoes cost $2.85 for 5 pounds. At Value Market, potatoes cost $4.20 for 7 pounds. What is the unit price of

Mashcka [7]

Answer:

$1.66 per pound of potatoes.

Step-by-step explanation:

I think you can just ignore the part at the beginning, this is probably a multi-part question.

unit price is just amount/cost so all you need to do is substitute that.

7/4.20 = 1.66$ per Pound

Good luck with your schoolwork/homework!

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Sorry in advance for bad explanations or wrong answers.

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3 years ago