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Jlenok [28]
3 years ago
9

The work of a student to solve a set of equations is shown below:

Mathematics
2 answers:
Zolol [24]3 years ago
3 0
He made erron in step 3. He forgot add 4. it should be  
-4m + 4m = -32 - 8n + 4n +4

Greeting
marusya05 [52]3 years ago
3 0
The error is found in step 3.

Here is what he did:

-4m + 4m = -32 - 8n + 4n <<<<<<<<<<<< What happened to +4???

0 = -32 - 4n

n = -8.

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Domain and range of (4,-4),(2,-3),(-5,1),(4,-1)
aniked [119]

(x; y)


The domain is x.

The range is y.


Therefore

(4; -4) → x = 4; y = -4

(2;-3) → x = 2; y = -3

(-5; 1) → x = -5; y = 1

if is (-4; -1) not (4; -1) then

(-4; -1) → x = -4; y = -1


The DOMAIN = {-5; -4; 2; 4}

The RANGE = {-4; -3; -1; 1}


If is (4; -4) and (4; -1) then it is not a function.

4 0
2 years ago
Ravi needs to buy some pencils. Brand A has 36 pencils for $8.52. Brand B has a pack of 48 pencils for $9.98. Find the unit pric
Aliun [14]

For this question you would divide $8.52 by 36 pencils to get about $0.24 per pencil for brand A rounded to the nearest cent. Then divide $9.98 by 48 pencils to get about $0.21 per pencil for brand B rounded to the nearest cent.

6 0
3 years ago
-11=(x-3)÷2 what is the solution for x
e-lub [12.9K]

Answer:

          -19

Step-by-step explanation:

                     ~ Distribute:

               - 11 = 1 / 2 x + -3 / 2

                        ~ Flip the equation:

                  1 / 2 x + -3 / 2 = -11

                          ~ Use transposition method:

                     (take -3 / 2 to the other side)

                       1 / 2 x = -11 - (-3 / 2)

                                  = -19 / 2

                                x = -12 / 2 * 2

                                    = -19

Hope this helped

Wishing u a gr8 day

:D

3 0
2 years ago
EQUATION ---&gt; c/-q+6=14
sveta [45]

Answer:

c/-9+6=14

c/-9=14-6

c/-9=8

c=8×(-9)

c= -72

Therefore the answer is (b)

8 0
2 years ago
One angle of a right triangle measures 65°. What is the measure of the other acute angle?
kvasek [131]

answer:

25°

explanation:

triangle total: 180°

right angle: 90°

90 + 65 = 155

180 - 155 = 25

hope this helped!

6 0
2 years ago
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