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2 years ago

PLEASE HELP I WILL GIVE BRAINLIEST IF TWO PPL ANSWER!! :C

Mathematics

2 answers:

timurjin [86]2 years ago

7 0

9514 1404 393

Answer:

-x -120
x +12
-x -12
0
x/3
-x/3

Step-by-step explanation:

|x - 120|, if x < -120 . . . the function changes behavior at x=120, at x < -120, the function value is -x+120

|x - ( -12 )|, if x > -12 . . . in this domain, the function is unchanged: x + 12

|x - ( -12 )|, if x < -12 . . . in this domain, the function is negated: -x -12

|x - ( - 12 )|, if x = -12 . . . at this point, the function is 0

|x ÷3|, if x > 0 . . . for positive x, the function is unchanged: x/3

|x÷3|, if x < 0 . . . for negative x, the function is negated: -x/3

olga55 [171]2 years ago

5 0

Answer:

x+120 , if x < -120

x+12 , if x > -12

x+12 , if x < -12

x+12 , if x = -12

x÷3 , if x > 0

x÷3 , if x < 0

Step-by-step explanation:

Well whatever is in the absolute value sign is always positive.

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A worker wants to save enough money to buy new

allochka39001 [22]

Answer:

The least amount of numbers that he can work at his job to have enough for the headphones he wants is 17 hours.

Step-by-step explanation:

To find the number of hours you could divide the cost of the headphones by the amount he earns each hour so you would do $119/ 7 to get 17 and then you could check your answer with multiplication by multiplying 7 * 17 to get 119 which shows that he has to work at least 17 hours to get the headphones he wants.

$119 / 7 = 17

17 * 7 = 119

3 0

3 years ago

When the new computer lab opened there were 18 computers.by the end of firdt week there were 25 computers. Find the percent of c

aliina [53]

The number of computers increased by 38.9%

Step-by-step explanation:

Number of computers at start of week = Old value = 18

Number of computers by end of week = New value = 25

Change = New value - Old value

Change = 25-18 = +7

The positive sign indicates the increase.

Increase percent = $\frac{Change}{Old\ value}*100$

$Increase\ percent=\frac{7}{18}*100\\\\Increase\ percent=\frac{700}{18}\\\\Increase\ percent= 38.88\%$

Rounding off to nearest tenth

Increase percent = 38.9%

The number of computers increased by 38.9%

Keywords: difference, percentage

Learn more about percentages at:

#LearnwithBrainly

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2 years ago

The radius of the moon is approximately 1,350,000 m. What is the radius in kilometers? (1 km=1000m)

serg [7]

Answer:

I believe it is 1,350 but i am not completely sure

Step-by-step explanation:

7 0

3 years ago

What’s the answer and how do I solve it?

Dimas [21]

Answer:

x= -1, x=3

Step-by-step explanation:

The “zeros” of a quadratic function are where the parabola intersects the x axis. In that graph the parabola touches x=-1 and x=-3. Therefore that is the answer.

8 0

2 years ago

A computer manufacturing company has sent a mail survey to 2,800 of its randomly selected customers that have purchased a new la

vodka [1.7K]

Answer:

The 96% confidence interval for the population proportion of customers satisfied with their new computer is (0.77, 0.83).

Step-by-step explanation:

We have to calculate a 96% confidence interval for the proportion.

We consider the sample size to be the customers that responded the survey (n=800), as we can not assume the answer for the ones that did not answer.

The sample proportion is p=0.8.

$p=X/n=640/800=0.8$