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barxatty [35]
3 years ago
12

Two less than a number is less that or equal to 27​

Mathematics
1 answer:
bulgar [2K]3 years ago
7 0

Answer:

n ≤ 29

Step-by-step explanation:

Represent the number by n.  Then:

n - 2 ≤ 27

If we solve this, we get n ≤ 29

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Which of the following are identities?
podryga [215]

Answer:

A. III only

Step-by-step explanation:

In mathematics, an identity is one of the characteristics of algebraic expressions.

Given variable a and b in an algebraic expression, an identity is defined as an equality that remains the same no matter the values that we choose for either variable a or b.

Identity in mathematics makes it very easy to solve algebraic expressions. The two sides of an identity in an algebra can easily be exchanged for each other.

In the above question, we are given 3 Options.

I) 3(5 + 2x) = 15 + 6x

II) y = x + 3

III) (x² - y²) = (x + y) (x - y)

Option I) 3(5 + 2x) = 15 + 6x

Is showing distributive property in mathematics.

Distributive property is :

a(b + c) = ab + ac

Option I is not an identity , therefore it is wrong.

Option II) y = x + 3 is just an algebraic expression.

Only Option III is an identity. This is because it follows the rule of

(a² - b²) = (a + b) (a - b)

We can prove and confirm this be solving the algebraic expression

(x + y) (x - y)

We expand the bracket

x² - xy +xy - y²

x² - y²

Therefore, option A is the correct option.

6 0
3 years ago
Read 2 more answers
2<img src="https://tex.z-dn.net/?f=%5Cpi" id="TexFormula1" title="\pi" alt="\pi" align="absmiddle" class="latex-formula"> x 24 s
Simora [160]

Answer: 48\pi

Step-by-step explanation:

(2 \times 24)\pi=48\pi

7 0
2 years ago
2. What step did Mikayla do wrong when she solved this
Lunna [17]

Mikayla subtracted 4 from both sides in the beginning when she should've added it to both sides to cancel it out on the right. the correct answer should actually be x=1

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Answer:

the answer is 1,208.74

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Find the domain and range of y= -|x|-1
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R: (-inf, 0]
D: all real #'s
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3 years ago
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