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rodikova [14]
4 years ago
9

All need to be checked. If you cant see the attachments plz wait

Mathematics
1 answer:
xxTIMURxx [149]4 years ago
8 0

Answer:

Yup! I think they are all correct from my standpoint.

Step-by-step explanation:

You might be interested in
Please i need help please help me out!
TiliK225 [7]

Answer:

1. 13 or -13

2. -5 < y < -3

3. 6 or -6

4. 1/8 or -1/8

Step-by-step explanation:

Clear the absolute-value bars by splitting the equation into its two cases, one for the Positive case and the other for the Negative case.

The Absolute Value term is |x|

 For the Negative case we'll use -(x) 

For the Positive case we'll use (x) 

Step  3  :

Solve the Negative Case

      -(x) = 13 

     Multiply

      -x = 13 

     Multiply both sides by (-1)

      x = -13 

     Which is the solution for the Negative Case

Step  4  :

Solve the Positive Case

      (x) = 13 

     Which is the solution for the Positive Case

Step  5  :

Wrap up the solution

 x=-13

 x=13

But for the case of question (2) its a different pattern..

Since this is a "less than" absolute-value inequality, my first step is to clear the absolute value according to the "less than" pattern. Then I'll solve the linear inequality.

| y + 4 | < 1

–1 < y + 4 < 1

This is the pattern for "less than". Continuing, I'll subtract 3 from all three "sides" of the inequality:

–1 – 4 < y + 4 - 4 < 1 – 4

–5 < y < -3

- 5 < y <  - 3

The solution to the original absolute-value inequality, | y + 4 | <  1 , is the interval:

- 5 < y  <  - 3

7 0
3 years ago
Help me with this please
sergejj [24]
R’(4,-5)
S’(4,-6)
T’(3,-4)
6 0
4 years ago
Monthly, Juan's net earnings are $6,000, and expenses are $5,000. If Juan saves the difference, how much will Juan have saved af
lapo4ka [179]

Answer:

$72,000

Step-by-step explanation:

6000-5000=1000

1000x6 =6000

6000x12=72,000

3 0
3 years ago
A staff member at UF's Wellness Center is interested in seeing if a new stress reduction program will lower employees systolic b
Yuri [45]

Answer:

A. On average the blood pressure levels before the stress reduction program were significantly higher than the systolic blood pressure levels after the stress reduction program, at 95% confidence level

Step-by-step explanation:

The confidence interval parameters is intended to detect if the new stress reduction program will lower the systolic blood pressure levels of employees

The difference between the the mean systolic blood pressure levels taken = The before systolic pressure - The after systolic blood pressure

The 95% confidence interval obtained = (5.6, 10.2)

Therefore, given that the values of the difference between the means are both positive, then there a difference as the confidence interval does not include zero (0), and at the 95% confidence level, the average systolic blood pressure levels before the stress reduction program are higher than the average systolic blood pressure levels after the program

5 0
3 years ago
How many pounds of iron are produced from 4,200 pounds of iron ore if the ratio of iron ore is 5/21
Ghella [55]
1,000. 4,200 / 21 = 200. 5 * 200 = 1,000
4 0
4 years ago
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