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3 years ago

A positive number with divisors besides one and itself is called ?

2 answers:

8 0

We know that a positive number where only one and itself divide it is called a prime number. A positive number with divisors other than 1 and itself are called composite numbers.

Fiesta28 [93]3 years ago

4 0

Answer:

The answer is: A positive number with divisors besides one and itself is called a composite number.

Step-by-step explanation:

Unlike prime numbers, which can only be divided by one and themselves, composite numbers have other divisors apart from these two. All even numbers greater than two, for example, are composite numbers because of the fact that they can all be divided by one, themselves and the number two.

An example of a prime number is 11 (It can only be divided by 11 and 1)

An example of a composite numbers is 12 (It can be divided by 1, 2, 3, 4, 6 and 12)

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Rationalize the denominator of square root of negative 9 over open parentheses 4 minus 7 i close parentheses minus open parenthe

AlekseyPX

The answer is
$\frac{-6i-3}{5}$ .

Before we rationalize the denominator, we must simplify the numerator and denominator. We evaluate the square root on the top, and combine like terms on the bottom:
$\frac{\sqrt{-9}}{(4-7i)-(6-6i)}
\\
\\=\frac{\sqrt{9i^2}}{4-6-7i--6i}
\\
\\=\frac{3i}{-2-i}$

To rationalize the denominator, we multiply by the conjugate. The conjugate is found by making the imaginary term of the complex number, the i part, the opposite sign. The conjugate of -2-i is -2+i:

$\frac{3i}{-2-i}\times \frac{-2+i}{-2+i}
\\
\\=\frac{3i(-2+i)}{(-2-i)(-2+i)}
\\
\\=\frac{3i\times -2 + 3i\times i}{-2\times -2 + -2\times i + -2\times -i + -i\times i}
\\
\\=\frac{-6i+3i^2}{4-2i+2i-i^2}
\\
\\=\frac{-6i+3(-1)}{4-i^2}=\frac{-6i-3}{4-(-1)}=\frac{-6i-3}{5}$

7 0

3 years ago

Can someone help me?

olga nikolaevna [1]

The answer is -8°F. This is because it DROPPED 8 degrees, meaning it was 8°F MINUS 8°F which would equal 0°F. Hope that helps!

7 0

3 years ago

Line r is parallel to the graph of 2x – 3y = –18. The y-intercept of line ris

KATRIN_1 [288]

Answer:

3 or (3,0)

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Give the ordered pair of the 3rd Critical point. Y = 4cos10(x - 12°) +16

lord [1]

So it would be x12 to the 2nd power, kinda hard to explain but i really hope this helped

6 0

3 years ago

Read 2 more answers

What is the solution to the equation below? Round your answer to two decimal places.

vodka [1.7K]

Answer:

x = 0.5

Step-by-step explanation:

2(2x-1)=3

2(2x)+1=3

-1 -1

2(2x)=2 2x2=4

4x=2

4÷4 Cancels out the 4 in X

2÷4=0.5

Therefore

x = 0.5

4 0

3 years ago