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RUDIKE [14]
1 year ago
14

Solve for a and graph the solution on the number line below.

Mathematics
1 answer:
oksian1 [2.3K]1 year ago
7 0

Solve for x and graph the solution on the number line below.

$$-x-5 \geq 1 \text { or }-x-5 < -8$$

$$-x-5 \geq 1$$

Add 5 to both sides

$$-x-5+5 \geq 1+5$$

Simplify

$$-x \geq 6$$

Multiply both sides by - 1 (reverse the inequality)$(-x)(-1) \leq 6(-1)$

Simplify

$$x \leq-6$$

$-x-5 < -8$

Add 5 to both sides

$-x-5+5 < -8+5$

Simplify

$-x < -3$

Multiply both sides by $-1$ (reversing the inequality)

$(-x)(-1) > (-3)(-1)$

Simplify

$x > 3$

The idea of inequality, which is the state of not being equal, especially in terms of status, rights, and opportunities, is at the core of social justice theories. However, because it frequently has diverse meanings to different individuals, it is prone to misunderstanding in public discourse. However, certain distinctions are universal.

In mathematics, inequalities specify the connection between two non-equal numbers. Equal does not imply inequality. Typically, we use the "not equal sign (≠)" to indicate that two values are not equal. But several inequalities are utilized to compare the numbers, whether it is less than or higher than.

Learn more about inequalities brainly.com/question/20383699

#SPJ9

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Solve the equation f (x + 2) = f (x-2) +4, where f (x) = 3 + 2x + x ^ 2
Vlad [161]
<h2>Answer:</h2>

The value of x is -1/2

<h2>Step-by-step explanation:</h2><h3>Question :</h3>

Solve the equation of f(x + 2) = f(x - 2) + 4, where f(x) = 3 + 2x + x^2

<h3>Solution :</h3>

First, we need to split the equation and find the answer to each function

f(x + 2) = 3 + 2(x + 2) + (x + 2)^2

f(x + 2) = 3 + 2x + 4 + x^2 + 4x + 4

<u>f(x + 2) = x^2 + 6x + 11</u>

f(x - 2) = 3 + 2(x - 2) + (x - 2)^2

f(x - 2) = 3 + 2x - 4 + x^2 - 4x + 4

<u>f(x - 2) = x^2 - 2x + 3</u>

Second, we need to find the value of x

f(x + 2) = f(x - 2) + 4

=> x^2 + 6x + 11 = x^2 - 2x + 3 + 4

=> x^2 - x^2 + 6x + 11 = - 2x + 3 + 4

=> 6x + 11 = -2x + 7

=> 6x = -2x - 4

=> 6x + 2x = -4

=> 8x = -4

=> x = -1/2

<h3>Conclusion :</h3>

The value of x is -1/2

3 0
2 years ago
Machine A produces 132 parts in 3 hours. Machine B produces 80 parts in 2 hours. At these rates, how many more parts will Machin
Shkiper50 [21]

Answer:

Machine A will have produced 20 more parts than machine B would in 5 hours

Step-by-step explanation:

7 0
4 years ago
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What is the solution to the equation 2/3x-5/6=-5/12x+1/4
vlabodo [156]

Answer: X=13/3

Step-by-step explanation:

1. Multiply Both sides by 12

8x-10=5x+3

2. Collect the like terms, calculate the sum

8x-5x=3+10

3.Divide both sides by 3

3x=13

Answer X=13/3

Alternative Form,

X= 4 1/3, X=4.3

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4 years ago
Is 21 to the square root of 2 rational or irrational
Step2247 [10]
It is equal to 21/2 which is a rational number
3 0
4 years ago
A production process is checked periodically by a quality control inspector. the inspector selects simple random samples of 30 f
777dan777 [17]

Answer:

Population Mean = 2.0

Population Standard deviation = 0.03

Step-by-step explanation:

We are given that the inspector selects simple random samples of 30 finished products and computes the sample mean product weight.

Also, test results over a long period of time show that 5% of the values are over 2.1 pounds and 5% are under 1.9 pounds.

Now, mean of the population is given the average of two extreme boundaries because mean lies exactly in the middle of the distribution.

So,   Mean, \mu = \frac{1.9+2.1}{2} = 2.0

Therefore, mean for the population of products produced with this process is 2.

Since, we are given that 5% of the values are under 1.9 pounds so we will calculate the z score value corresponding to a probability of 5% i.e.

             z = -1.6449 {from z % table}

We know that z formula is given by ;  

                Z = \frac{Xbar - \mu}{\frac{\sigma}{\sqrt{n} } } ~ N(0,1)

              -1.6449 = \frac{1.9 - 2.0}{\frac{\sigma}{\sqrt{n} } }     ⇒  \frac{\sigma}{\sqrt{n} }  = \frac{-0.1}{-1.6449}  

                                           ⇒ \sigma = 0.0608 * \sqrt{30}  {as sample size is given 30}

                                           ⇒ \sigma = 0.03 .

Therefore, Standard deviation for the population of products produced with this process is 0.0333.

7 0
4 years ago
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