3 years ago

X (x+2) -x+3(-x-2)-(2x+4)

Mathematics

1 answer:

ololo11 [35]3 years ago

5 0

Your answer is -4x - 8

hope this helps

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$4.1 and 3.16

Step-by-step explanation:

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3 years ago

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Please give full explanation

Alex

S (ABCD) = S (ABC) + S (ADC)

_____________________________________________

<h2>Reminder :</h2>

Area of the triangle = ½ × base × height

_____________________________________________

Thus :

$S (ABCD) = ( \frac{1}{2} \times 10 \times 3) + ( \frac{1}{2} \times 10 \times 5) \\$

$S (ABCD) = 15 + 25$

$S (ABCD) = 40 \: \: {cm}^{2}$

There you go...

Have a great day ❤

4 0

2 years ago

As of 2016, New York City has a population of 8.55 million and a land area of 300 square miles. Manhattan is a section of New Yo

sineoko [7]

Answer: 42804 people per square mile

Step-by-step explanation:

As we know Population density = $\dfrac{Number\ of\ people}{Area}$

Given, population of New York City = 8.55 million

Area of New York City = 300 square miles

Then, population density of New York City = $\dfrac{8.55\text{ million}}{300\text{ square miles}}$

$=\dfrac{8550000}{300\text{ square miles}}=28500\text{ people per square mile}$ [1 million = 1,000,000]

Population of Manhattan = 1.64 million = 1640000

Area of Manhattan = 23 square miles

population density of Manhattan = $\dfrac{1640000}{23}\approx71304\text{ people per square mile}$

Difference = 71304 - 28500 =42804

Hence, population density of Manhattan is 42804 people per square mile greater than that of New York City.

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3 years ago

Sarah rolls a fair dice 54 times.<br> How many times would Sarah expect to roll a four?

Svetradugi [14.3K]

Answer:

Step-by-step explanation:

The dice will have 6 sides so divide 54 by 6

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3 years ago

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