3 years ago

What describes a rational number? please be specific and show examples of the number ASAP!! XD

Mathematics

1 answer:

mel-nik [20]3 years ago

7 0

Done! just press the pic

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What must be true if = 30 Ze? Assume a+0,b=0, and y+0.

Aliun [14]

Answer:

Step-by-step explanation:

we can find x/y by multiply 3a/b * 3a/b

x/y = 9a^2/b^2

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3 years ago

A single tree produces about 2.6 x 10^2 lb of oxygen each year.The Amazon rainforest has about 3.9 x 10^11 trees.About how many

inna [77]

So to multiply standard form we multiply the 2 numbers and the 2 indices separately.

$2.6*3.9=10.14$
$x^{2} * x^{11} = x^{13}$

So we've got $10.14*10^{13}$
However Standard form must be $1 \leq x \leq 10$ therefore we need to divide that by 10 but to get the same number we add one onto the power of 10.

So the answer is:

$1.014*10^{14}$ lbs of oxygen are produced in the rainforest each year.

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3 years ago

What is (3x2+x-1)(x^4-2x+1)

Inga [223]

Answer:

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Step-by-step explanation:

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3 years ago

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Solve for x7(x 2) (x 5)44O -16

babymother [125]

7(x + 2) = 6(x + 5)

7x + 14 = 6x + 30 |subtract 14 from both sides

7x = 6x + 16 |subtract 6x from both sides

x = 16

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3 years ago

What is the value of 2021 − 2223 + 2425 ? ?

Amanda [17]

Answer:

2223

Step-by-step explanation:

We need to find the value of 2021-2223+2425.

Firstly subtract 2223 from 2021.

2021-2223 = -202

Now add -202 and 2425. So,

2425 +(-202) = 2223

So, the value of 2021-2223+2425 is 2223. Hence, this is the required solution.

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3 years ago