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4 years ago

Which number line represents the solution set for the inequality –4(x + 3) ≤ –2 – 2x?

Mathematics

1 answer:

harina [27]4 years ago

8 0

Answer:

1st Option

Step-by-step explanation:

When we solve the equation for <em>x</em>, we get x ≥ -5

This means that x has to be equal to or greater that -5, so positive values. The arrow would be pointing to the right.

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I NEED HELP IN QUESTION 4 AND 5 IF YOU KNOW HOW TO DO THIS PLEASEE HELP

Soloha48 [4]

Answer:

I'm in an elementary schools how I'm I suppose to know???? no answer

lolololo

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3 years ago

Pls help asap i will give brenerlist plus 10 points

Anastasy [175]

12 meters longer than his throw = t+12

So, option C is correct.

Step-by-step explanation:

We need to translate the word phrase into a math expression.

the word phrase is:

12 meters longer than his throw

Let throw = t

So, 12 meters longer than his throw = t+12

So, option C is correct

Keywords: translate the word phrase into a math expression.

Learn more about translate the word phrase into a math expression at:

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3 years ago

Maria has 144 marbles.Emanuel has 4 times the number of marbles maria has,How many marbles does Emanuel have

inessss [21]

576
144 times 4
144+144=288
144+144=288
576

7 0

3 years ago

HighTech Inc. randomly tests its employees about company policies. Last year in the 560 random tests conducted, 26 employees fai

Tanzania [10]

Answer:

The 98% confidence interval for the proportion of applicants that fail the test is (0.025, 0.067).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence level of $1-\alpha$ , we have the following confidence interval of proportions.

$\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}$

In which

z is the zscore that has a pvalue of $1 - \frac{\alpha}{2}$ .

For this problem, we have that:

560 random tests conducted, 26 employees failed the test. This means that $n = 560, \pi = \frac{26}{560} = 0.046$

98% confidence level

So $\alpha = 0.02$ , z is the value of Z that has a pvalue of $1 - \frac{0.02}{2} = 0.99$ , so $Z = 2.33$ .

The lower limit of this interval is:

$\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.046 - 2.33\sqrt{\frac{0.046*0.954}{560}} = 0.025$

The upper limit of this interval is:

$\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.046 + 2.33\sqrt{\frac{0.046*0.954}{560}} = 0.067$

The 98% confidence interval for the proportion of applicants that fail the test is (0.025, 0.067).

5 0

4 years ago

Triangle ABC is reflected over the Y axis. what are the coordinates of the reflected triangle

Liula [17]

Original Coordinates: A(1, 3) B(4, 5) C(3, 1)

Now, It is reflected over y-axis, so the sign of their x-coordinate will change.,

It would be: A'(-1, 3) B'(-4, 5) C'(-3, 1)

Hope this helps!

8 0

3 years ago

Read 2 more answers