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seropon [69]
3 years ago
5

100 students had some homework

Mathematics
2 answers:
vfiekz [6]3 years ago
7 0

Answer:

is this the homework you have?

Step-by-step explanation:

maksim [4K]3 years ago
3 0

Answer:

Here is answer

...........

please give Brainliest

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Solve | x + 6| - 7 = 8
Alex

Answer:

x = 9,-21

Step-by-step explanation:

Given:

\displaystyle \large{|x+6|-7=8}

Transport -7 to add 8:

\displaystyle \large{|x+6|=8+7}\\\displaystyle \large{|x+6|=15}

Cancel absolute sign and add plus-minus to 15:

\displaystyle \large{x+6=\pm 15}

Transport 6 to subtract ±15:

\displaystyle \large{x=\pm 15-6}

Consider:

\displaystyle \large{x= 15-6} or \displaystyle \large{x = -15-6}

\displaystyle \large{x=9} or \displaystyle \large{x=-21}

Solution:

\displaystyle \large{x = 9} or \displaystyle \large{x=-21}

__________________________________________________________

Second Method

Given:

\displaystyle \large{|x+6|-7=8}

Transport -7 to add 8:

\displaystyle \large{|x+6|=8+7}\\\displaystyle \large{|x+6|=15}

Absolute Function Property:

\displaystyle \large{|x-a| = \begin{cases} x-a \ \ (x \geq a) \\ -x+a \ \ (x < a) \end{cases}}

Consider both intervals:

When x ≥ a then:

\displaystyle \large{|x+6|=15}\\\displaystyle \large{x+6=15}

Transport 6 to subtract 15:

\displaystyle \large{x=15-6}\\\displaystyle \large{x=9}

When x < a then:

\displaystyle \large{|x+6|=15}\\\displaystyle \large{-(x+6)=15}\\\displaystyle \large{-x-6=15}

Transport -6 to add 15:

\displaystyle \large{-x=15+6}\\\displaystyle \large{-x=21}

Transport negative sign to 21:

\displaystyle \large{x=-21}

Solution:

\displaystyle \large{x=9} or \displaystyle \large{x=-21}

__________________________________________________________

Let me know if you have any questions regarding this question, my answer or explanation. Hope this answer and explanation helps you and good luck with your assignment!

3 0
2 years ago
Fill in the blank with the Spanish word that best completes the following sentence.
Flura [38]

Answer:I think it’s nieve

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
PLEASE HELP!!!!
Anestetic [448]

Answer:

Option A is correct answer.

Step-by-step explanationa(x-h)x^{2} +k

If the given function is given as

f(x) =a(x-h)x^{2} +k

then vertex is (h,k) and Its domain is set of all real numbers

and range is given to be y ≥k for a>0

So here in the question the equation is given as

3(x-1)x^{2} +2

on comparing the equation with given standard equation

we get a=3 which is greater than zero

h =1 and k=2

therefore vertex is (1,2) ,Domain is set of all real number

and range is y≥2

That is option A is correct!

3 0
3 years ago
Read 2 more answers
Marley has read 112.5 pages of a book. By the end of today, she plans to have read at least a total of 360 pages. If she reads 4
e-lub [12.9K]
She will need 5 and a half hours. First step is to do 360-112.5 the pgs she read and her goal. then you'll get 247.5. To find how many hours you need to find the unit rate. so 247.5 divided by 45 is 5.5 hours. 

hope this helped. can u mark me as the brainiest answer
6 0
4 years ago
5
PilotLPTM [1.2K]

Answer:

sxhhxhxbxhdgcgg her izisjsuhdhdhdhsy ne zaman emekli olabilirim ama diğerlerini

4 0
3 years ago
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