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3 years ago

A number x is at least -1 and no more than 9What is the inequality ???

1 answer:

8 0

9_>x>_-1

- x would have to be less than or equal to 9, but greater than or equal to -1. the symbols for the greater than or equal to is the > with a line under it (in case you didn’t know) and same with the less than or equal to

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Plz help i need help on this i do not get it

Andrej [43]

Area of circle 1 = πr²
Area of circle 1 = π (10)²
Area of circle 1 = 100π km²

Area of circle 2 = πr²
Area of circle 2 = π (5)²
Area of circle 2 = 25π km²

Number of times the bigger circle is greater than the smaller circle
$\dfrac{100 \pi }{25 \pi } = 4$

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Answer: The big circle is 4 times greater than the small circle.
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6 0

3 years ago

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PLZZZZZZZZZ HELP ME FOR 25 POINTS!!!!!!!!!!!!!!!!!!!!Solve and show your work for each question. (a) What is 0.36^__(over 3 and

lara31 [8.8K]

$0.36^3^6 = 1.063874*10^-^1^6
$

$0.36^6= 0.002177
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$0.36 = \dfrac{36}{100}$

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3 years ago

Is 0.212121212121...a rational number because a irrational number does not terminate or repeat?

pentagon [3]

The 21 part repeats

it can be represented as 21/99

it's rational

8 0

2 years ago

HELP PLEASE <br><br>i dont understand at all...

bija089 [108]

An exponent signifies repeated multiplication.

$x\cdot x\cdot x=x^{3}$ the factor x is repeated 3 times

Exponents can be added and subtracted to express the effects of multiplication and division.

$\dfrac{x\cdot x\cdot x\cdot x\cdot x}{x\cdot x\cdot x}=\dfrac{x^{5}}{x^{3}}\\\\=\dfrac{x\cdot x\cdot x}{x\cdot x\cdot x}\cdot x\cdot x=x\cdot x\\\\=x^{(5-3)}=x^{2}$

The addition and subtraction of exponents works the same even when there are more denominator factors than numerator factors.

$\dfrac{x\cdot x\cdot x}{x\cdot x\cdot x\cdot x\cdot x}=\dfrac{x^{3}}{x^{5}}=\dfrac{1}{x^{2}}\\\\=x^{(3-5)}=x^{-2}$

That is, a negative numerator exponent is the same as a positive denominator exponent and vice versa. You can move a factor with an exponent from denominator to numerator and change the sign of the exponent, and vice versa.

Your expression has 3 in the denominator with a negative exponent. It can be moved to the numerator and the exponent changed to positive:

$\dfrac{1}{3^{-2}}=3^{2}\\\\=3\cdot 3=\bf{9}$

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3 years ago

Translate each phrase into a variable expression. use n for the variable

gayaneshka [121]

N + 2 that is correct

8 0

3 years ago

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A number x is at least -1 and no more than 9What is the inequality ???​

A number x is at least -1 and no more than 9What is the inequality ???