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3 years ago

Alguem sabe a resposta? 3 (x+y) -3(2+8) x (x-y) 2xy(x+y)?

1 answer:

algol133 years ago

6 0

3 (x+y)=3x+3y || -3(2+8)=-30 || x(x-y)=x2−xy || 2xy(x+y)?=2x^2y+2xy^2

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Can someone plz help me

Pani-rosa [81]

Answer:

I got 172.05

Step-by-step explanation:

I used a calculator on goo gle calculatorsoup.com

5 0

3 years ago

What is 362,000 rounded to the nearest ten thousand

Anon25 [30]

Answer:

360,000

Step-by-step explanation:

4 0

3 years ago

What is 4/5 times 7/12

slamgirl [31]

Answer:

$\frac{28}{60}$ ( $\frac{7}{15}$ )

Step-by-step explanation:

b/c 4/5*7/12

means 4*7 and 5*12

then28/60

hope it's helpful

THANK YOU.

3 0

3 years ago

Is 9.521521521 rational or irrational

enyata [817]

If the numbers after the decimal terminate, yes, it's rational.

9.521521521 = 9,521,521,521 / 1,000,000,000

If they don't terminate, but the pattern continues (which I suspect is the case here), yes, it's still rational.

If x = 9.521521521…, then

1000x = 9521.521521521…

Subtract x from this to eliminate the fractional part:

1000x - x = 9521.521521521… - 9.521521521…

999x = 9512

x = 9512/999

If they don't terminate, but the pattern does not continue, meaning the next few digits could be something random like

9.52152152119484929271283583457…

then the number would be irrational.

7 0

3 years ago

Choose the correct description of the graph of the compound inequality: (5 points)

skad [1K]

Answer:

Step-by-step explanation:

Firstly,

≤ or ≥ means closed circle, and

< or > means open circle

Now, let's solve the compound inequality:

x - 1 ≤ 7

x ≤ 8

and

2x ≥ 22

x ≥ 11

This solution means "everything left of 8 (inclusive and closed circle)" and "everything right of 11 (inclusive and closed circle)"

Looking at the choices, D is right.

4 0

3 years ago