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Hunter-Best [27]
3 years ago
6

Is 20 a prime or composite number.​

Mathematics
2 answers:
STALIN [3.7K]3 years ago
6 0

Answer: It is a composite number since it has more factors than just itself and 1.

Step-by-step explanation:

1x20=20

2x10=20

4x5=20

vredina [299]3 years ago
3 0

Answer:

composite

Step-by-step explanation:

It has factors other than 1 and 20; Its factors are 1, 2, 4, 5, 10, and 20.

HTH :)

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Which number is equal to 10 Superscript negative 3? –1,000 –30 0.001 0.003
Karolina [17]

<u>Given</u>:

The given expression is 10^{-3}

We need to determine the equivalent number.

<u>Equivalent expression:</u>

To determine the equivalent number, let us solve the expression 10^{-3}

Thus, let us apply the exponent rule a^{-b}=\frac{1}{a^{b}} , we get;

10^{-3}=\frac{1}{10^{3}}

Also, the term 10³ can be written as 10^{3}=1000

Thus, we get;

\frac{1}{1000}

Dividing, we get;

0.001

Hence, the equivalent number is 0.001

Hence, Option c is the correct answer.

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3 years ago
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Nastasia [14]

Where the 2 lines meet in the middle to form an X

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Solutions to 2-variable equations y=-2x-5
vodomira [7]

Answer:(1, -3).

Step-by-step explanation:

If y=2x-5 is equation (1) and 4x-y=7 is equation (2), then substitute equation (1) in equation (2):

4x - (2x - 5) = 7

4x - 2x + 5 = 7

2x = 7-5

2x = 2

x = 1

Now substitute the value of x in equation (1) to find the value of y:

y = 2 (1) - 5

y = 2 - 5

y = -3

3 0
3 years ago
Answer please quick and do it right !!
boyakko [2]

Answer:

$15.39

Step-by-step explanation:

A=\pi r^{2}

A=3.143.5^{2}

A=38.465

38.465*8=307.72

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