Number Math Question With Solutions

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1 / 10

An even number is always divisible by –

2 / 10

The modulus of complex number z = x + iy is -

|z| = √(x² + y²)

3 / 10

The Multiplicative Inverse Property:

a × 1 = a = a × 1

a + (-a) = 0 = (-a) + a

a + 0 = a = 0 + a

a × 1/a = 1 = 1/a × a

4 / 10

Which of the following is an associative property?

1 × (2 + 3) = (1 + 2) × 3, 1 × (2 + 3) = (1 + 2) × 3

1 + (2 + 3) = (1 + 2) + 3, 1 × (2 × 3) = (1 × 2) × 3

1 + (2 × 3) = (1 × 2) + 3, 1 + (2 × 3) = (1 × 2) × 3

1 + (2 + 3) = (1 + 2) × 3, 1 + (2 × 3) = (1 × 2) × 3

5 / 10

For any real number a, the additive identity property:

a + b = b + a

a × b = b × a

a + 0 = a = 0 + a

a × 1 = a = a × 1

6 / 10

The real part of a complex number 2 - 3i is -

-3i

7 / 10

Find the modulus of -4 + 3i.

8 / 10

Which of these is a number?

9 / 10

Which is the Commutative Property of Addition for any real number a, b?

a + (b + c) = (a + b) + c

a × b = b × a

a × (b × c) = (a × b) × c

a + b = b + a

10 / 10

The multiplicative inverse of 1/10 is –

-10

1.0

0.01

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