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3 years ago

Which of the following demonstrates the

Mathematics

1 answer:

Luden [163]3 years ago

3 0

The correct answer is d. 9 + 0 = 9

Further explanation:

If x is an element of a set, and adding a number to it doesn't change it i.e. the result is also x then the number is called additive identity.

In mathematics, 0 is considered as additive identity because no matter with which number it is added, the number always remains same.

In the given options:

Option a. 5*1=5 demonstrates multiplicative identity

Option b. 3+5=5+3 demonstrates commutative property

Option c. 4+ (6 + 8) = (4+6) +8 demonstrates associative property

While the last option

d. 9 + 0 = 9 demonstrates additive identity as zero is being added to 9 and the answer is also 9.

The correct answer is d. 9 + 0 = 9

Keywords: Identities, Properties

Learn more about set properties at:

#LearnwithBrainly

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(2x - 5) (x^2 + x - 2) =

hjlf

It’s 2x^3-3x^2-9x+10

8 0

3 years ago

match the vocabulary word to its correct definition 1 additive identity 2 equation 3 multiplicative identity 4 open sentence 5 s

Semenov [28]

Answer:

See below.

Step-by-step explanation:

match the vocabulary word to its correct definition

1 additive identity

—the number 0 (for the numbers)

2 equation

—a mathematical sentence whose verb is ‘equal’ (=)

3 multiplicative identity

—the number 1 (for the real numbers

4 open sentence

—an equation that contains a variable or variables

5 symmetric property

—when the sides of an equation are interchanged, an equivalent equation is formed ; if a=b, then b=a

3 0

3 years ago

Please help my slow behind ASAP

Marina CMI [18]

We need to look at the first clue, which is that they are 12th graders.

Add all the numbers in the 12th grade row and you get 68

Then match up the 12th grade row with the math column and the number presented you put over 68 so 28/68

Divided and you get D

6 0

3 years ago

What values of a and b make the equation true? StartRoot 648 EndRoot = StartRoot 2 Superscript a Baseline times 3 Superscript b

kramer

Option C: $a=3, b=4$ is the value of a and b

Explanation:

Given that the expression $\sqrt{648}=\sqrt{2^a\times3^b}$

We need to determine the value of a and b

Let us consider the term $\sqrt{648}$ and take the prime factorization of the term 648

Thus, we have,

648 divides by 2,

$648=2 \cdot 324$

324 divides by 2,

$648=2 \cdot 2 \cdot 162$

162 divides by 2,

$648=2 \cdot 2 \cdot 2 \cdot 81$

81 divides by 3,

$648=2 \cdot 2 \cdot 2 \cdot 3 \cdot 27$

27 divides by 3,

$648=2 \cdot 2 \cdot 2 \cdot 3 \cdot 3 \cdot 9$

9 divides by 3,

$648=2 \cdot 2 \cdot 2 \cdot 3 \cdot 3 \cdot 3 \cdot 3$

Thus, we have,

$\sqrt{648}=\sqrt{2^{3} \cdot 3^{4}}$

Therefore, equating the powers of 2 and 3, we get,

$a=3, b=4$

Hence, the value of a and b is 3 and 4

Thus, Option C is the correct answer.

4 0

3 years ago

Read 2 more answers

Write the equation of a line parallel to the line: y=-x-4 that goes through the point (-9,8)

Ymorist [56]

Answer:

y=-x-1 or, y-8=-1(x+9)

Step-by-step explanation:

Parallel lines have the same slope. in your current equation you have a slope of -1. We can use this slope and your set of points in the point slope formula.

y-y1=m(x-x1)

(-9, 8)

x1 y1 m=-1

y-8=-1(x+9)

y-8=-1x-9

+8 +8

y=-x-1

6 0

4 years ago