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2 years ago

What is (2x-7y)^2 simplified

Mathematics

1 answer:

worty [1.4K]2 years ago

5 0

Answer:

4x² - 28xy + 49y²

Step-by-step explanation:

(2x - 7y)²

= (2x - 7yy)(2x - 7y)

Each term in the second factor is multiplied by each term in the first factor, that is

2x(2x - 7y) - 7y(2x - 7y) ← distribute parenthesis

= 4x² - 14xy - 14xy + 49y² ← collect like terms

= 4x² - 28xy + 49y²

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LAST ATTEMPT! MARKING AS BRAINLIEST!! ( simplifying radicals)

serious [3.7K]

$\huge \bf༆ Answer ༄$

Let's solve ~

$\qquad \looparrowright \sf - 7 \sqrt{80 {x}^{4} y {}^{2} }$

$\qquad \looparrowright \sf - 7 \sqrt{2 {}^{4} \times 5 \times {x}^{4} \times {y}^{2} }$

$\qquad \looparrowright \sf - 7 \times {2}^{2} \times {x}^{2} \times y \times \sqrt{5}$

$\qquad \looparrowright \sf - 28 {x}^{2} y \sqrt{5}$

Therefore, Option D is correct ~

8 0

2 years ago

What is the measure of the smallest interior angle of the hexagon shown?

yan [13]

<h3>Answer: C) 70 degrees</h3>

=========================================================

Explanation:

We have n = 6 sides, so the interior angles must add to 180(n-2) = 180(6-2) = 720 degrees

Lets add up the angles, set the sum equal to 720 and solve for x

x+2x+115+2x+115+2x = 720

7x+230 = 720

7x = 720-230

7x = 490

x = 490/7

x = 70

This makes angle 2x = 2*70 = 140 degrees

We see that x = 70 is the smallest angle, so that's why C is the answer.

7 0

2 years ago

46.Find the quotient and remainder

sleet_krkn [62]

Answer:

30624; 1514,6; a1,6.

4 0

1 year ago

40% of 115 is what number

kari74 [83]

Answer:

Step-by-step explanation:

first multiply 115 by .40 then you got your answer

6 0

3 years ago

Read 2 more answers

The table shows information about water used in a household.

tankabanditka [31]

Answer:

is there is no value of April

Step-by-step explanation:

so the value of the month April is zero

5 0

2 years ago