All categories

4 years ago

Expand (x+2y)^2hgghhhhjjjjjjj

Mathematics

1 answer:

Sonbull [250]4 years ago

7 0

Step-by-step explanation:

(x+2y)²=x²+4xy+4y²

...........

You might be interested in

Which choice is equivalent to the product below? square root 2 3 6

Butoxors [25]

Answer:

Step-by-step explanation:

Pull terms out from of the radical,assuming positive real numbers .

3 0

3 years ago

Peter and Derrick are playing hockey, Peter bounces the puck against the wall to Derrick.

MArishka [77]

Answer: 5.4ft!

Step-by-step explanation:

7 0

3 years ago

Giving out brainliest ALL I need is to know if my answer is correct

Ipatiy [6.2K]

Answer:

yes

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

WORTH 20 POINTS HELP

vfiekz [6]

Below represents the proof that the quadrilateral QRST is a parallelogram

<h3>How to prove that QRST is a parallelogram?</h3>

The coordinates are given as:

Q = (-1,-1)

R = (2,9)

S = (-4,5)

T = (-7,-5)

Calculate the length of each side using:

$d = \sqrt{(x_2 -x_1)^2 + (y_2 -y_1)^2}$

So, we have:

$QR = \sqrt{(-1 - 2)^2 + (-1 -9)^2} = \sqrt{109}$

$RS = \sqrt{(-4 - 2)^2 + (5 - 9)^2} = \sqrt{52}$

$ST = \sqrt{(-7 + 4)^2 + (-5 - 5)^2} = \sqrt{109}$

$TQ = \sqrt{(-7 + 1)^2 + (-5 + 1)^2} = \sqrt{52}$

The above computations show that opposite sides are equal.

Next, we determine the slope of each side using:

$m = \frac{y_2 -y_1}{x_2 -x_1}$

So, we have:

$QR = \frac{9 + 1}{2 + 3} = \frac{10}3$

$RS = \frac{5-9}{-4 - 2} = \frac{2}3$

$ST = \frac{5+5}{-4 + 7} = \frac{10}3$

$TQ = \frac{-5+1}{-7 + 1} = \frac{2}3$

The above computations show that opposite sides are parallel, because they have equal slope

Hence, the quadrilateral QRST is a parallelogram

Expand (x+2y)^2hgghhhhjjjjjjj​

Expand (x+2y)^2hgghhhhjjjjjjj