Which equation illustrates the identity property of multiplication?a.(a + bi) × c = (ac + bci)
b.(a + bi) × 0 = 0
c.(a + bi) × (c + di) = (c + di) × (a + bi)
d.(a + bi) × 1 = (a + bi)

Answers

Answer 1

Answer: For this case by definition we have:
The identity property of multiplication states that the product of 1 and any number is that given number.
We have then, for example:
$(a * 1) = a$
Where,
a: real number
Applying the definition, we have that the expression that models the identity property is given by:
$(a + bi) * 1 = (a + bi)$
Where,
a: real part
bi: imaginary part Answer:
d.(a + bi) × 1 = (a + bi)

Answer 2

Answer:

Equation shows identity property of multiplication is (a + bi) × 1 = (a + bi)

The correct option is (d)

What is Identity property of multiplication?

The identity property of multiplication says that the product of 1 and any number is that number.

We know, Identity property of multiplication states that

"the product of 1 and any number is that given number".

We know that every complex number have two parts one is real and other is imaginary.

If a is real number and b is imaginary part then by definition

(a + bi) × 1 = (a + bi).

1. Uses Distributive Property of Multiplication.

2. Zero product property.

3. Commutative property of multiplication

4. Identity property of multiplication.

Hence, equation shows identity property of multiplication is (a + bi) × 1 = (a + bi)

Learn more identity property of multiplication here:

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8)
What is the opposite of the opposite of -9|

Answers

Answer:

-9

Step-by-step explanation:

-9 is the opposite of the opposite of -9

Given the two expressions shown below:A. square root of 64 plus square root of 5
B. square root of 64 plus square root of 4

Which statement best describes the two expressions?

A. Both are rational.
B. Both are irrational.
C. A is rational, but B is irrational.
D. A is irrational, but B is rational.

Answers

The statement that best describes the two expressions is
D. A is irrational, but B is rational

square root of 64 plus square root of 5 is 8 plus square root of 5, the square root of 5 is an irrational number which makes the entire expression an irrational number

square root of 64 plus square root of 4 is 8 plus 2 which is equal to 10 and is a rational number

What is the answer to 5(3x-2)-(3x+5

Answers

Answer:

The answer is 12x-15

Step-by-step explanation:

This is a simplification question, so

5(3x-2) using distributive property makes it (15x - 10)

-(3x+5) negating 3x+5 gives -3x-5

so 15x-10-3x-5 = 12x-15

Hope this helps!

How do you solve Log-m+2=4

Answers

log-m+2=4
--log+2
m=log-2

How would you find the volume of the solid in the figure shown above?A. Use the formula for the volume of a frustum.
B. You can only find an approximate volume of this figure.
C. Use the formula for the volume of a prismoid.
D. Divide it into solids whose volumes you can find.