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3 years ago

2|x-4|-7 is less than or equal to 1

Mathematics

2 answers:

ElenaW [278]3 years ago

5 0

Answer:

= to

Step-by-step explanation:

weeeeeb [17]3 years ago

4 0

=2 it is =2 that’s what it is

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Help please. Only 20 minutes left.

Tcecarenko [31]

Answer:

-5

Step-by-step explanation:

4 0

3 years ago

Carlos finished 1/3 of his art project on Monday. Tyler finished 1/2 of his art project on Monday. Who finished more of hood art

vladimir2022 [97]

Tyler finished more of the art project.

Carlos finished 1/3
In terms of percentage 1/3 *100% = 33.3%

Tyler finished 1/2
In terms of percentage 1/2 *100% = 50%

50% > 33.3%
50% is greater than 33.3%

4 0

3 years ago

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Which expression is equivalent to StartFraction 2 a + 1 Over 10 a minus 5 Endfraction divided by StartFraction 10 a Over 4 a squ

const2013 [10]

Answer:

$\frac{(2a + 1)^2}{50a}$

Step-by-step explanation:

Given

$\frac{2a + 1}{10a - 5} / \frac{10a}{4a^2 - 1}$

Required

Find the equivalent

We start by changing the / to *

$\frac{2a + 1}{10a - 5} / \frac{10a}{4a^2 - 1}$

$\frac{2a + 1}{10a - 5} * \frac{4a^2 - 1}{10a}$

Factorize 10a - 5

$\frac{2a + 1}{5(2a - 1)} * \frac{4a^2 - 1}{10a}$

Expand 4a² - 1

$\frac{2a + 1}{5(2a - 1)} * \frac{(2a)^2 - 1}{10a}$

$\frac{2a + 1}{5(2a - 1)} * \frac{(2a)^2 - 1^2}{10a}$

Express (2a)² - 1² as a difference of two squares

Difference of two squares is such that: $a^2- b^2= (a+b)(a-b)$

The expression becomes

$\frac{2a + 1}{5(2a - 1)} * \frac{(2a - 1)(2a + 1)}{10a}$

Combine both fractions to form a single fraction

$\frac{(2a + 1)(2a - 1)(2a + 1)}{5(2a - 1)10a}$

Divide the numerator and denominator by 2a - 1

$\frac{(2a + 1)((2a + 1)}{5*10a}$

Simplify the numerator

$\frac{(2a + 1)^2}{5*10a}$

$\frac{(2a + 1)^2}{50a}$

Hence,

$\frac{2a + 1}{10a - 5} / \frac{10a}{4a^2 - 1}$ = $\frac{(2a + 1)^2}{50a}$

4 0

3 years ago

Which of the following describes a compound event? A) getting heads on a coin toss B) rolling an odd number on a die C) getting

jekas [21]

Combination event: 2 or more simple events/actions
The correct answer is D) because there are 2 actions in one description.

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3 years ago

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What Is 2 + 2^2 + 10?

ikadub [295]

The answer is 16
hope this helps

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3 years ago

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