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Paul [167]
3 years ago
13

PLS HELP WILL MARK BRAINLYEST

Mathematics
2 answers:
victus00 [196]3 years ago
8 0

Answer:

Chile you didn´t even try like why so many dang questions

Step-by-step explanation:

A .

b . Yes,I do 1,110 is a cluster because it’s a very large number for 52 degrees and 189 is because it’s a very large number for 16 degrees.

c . There is a negative correlation.

D . The dependent variable is sales and independent variable is the temperature.

A. yes my partner is correct because the line goes diagonally upwards.

B. The trend line lies on the points (0,100) and (15,900)D .

C . Yes do see a relationship. This line move one direction up. notice how the dots move up like an escalator.

D. Yes do see a relationship. This line move one direction up. notice how the dots move up like an escalator.

I didn´t finish the rest but i gave you some of it :)

Yuki888 [10]3 years ago
4 0

Answer:

yes i do

Step-by-step explanation:

because the more sales the better money he/she gets for selling the hot chocolate

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On a trip that took 10 hours, Mark drove 2 fewer hours than Mary. How many hours did Mary drive?
Dafna11 [192]

Answer:

Mark drove 4 hours

Mary drove 6 hours

Step-by-step explanation:


6 0
3 years ago
Read 2 more answers
Solve in systems by substitution y=2x+1 and 2x-y=3
nika2105 [10]

Answer: No Solution

Step-by-step explanation:

y=2x+1 and 2x-y=3

Substitute y=2x+1 into 2x-y=3

So you will have: 2x-2x+1=3

Then,

2x-2x=0

0+1=3

1=3

1 doesn't equal 3 so there is no solution.

4 0
2 years ago
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Math help will give brainliest what is X and M angle A
Anna [14]
Supplementary = 180 degrees...

A + B = 180

3x + 12 + 7x + 38 = 180

10x + 50 = 180

10 x = 130

x = 13 

To find the A just substitute x in...

 
3 ( 13) + 12  

A = 51

To check substitute the x..

A + B = 180

3(13) + 12 + 7(13) + 38 = 180
        51 + 129 = 180
            180 = 180
3 0
3 years ago
Helppppppppppppppppppp
lilavasa [31]

\tt {Solution}

\tt {2 \frac{3}{4} + 5\frac{3}{5}}

\tt {\frac{11}{4} + \frac{28}{5}}

\tt {\frac{55+112}{20} }

\tt { \frac{167}{20} }

\tt {8 \frac{7}{20}}

8 0
2 years ago
Please help ! I’ll mark you as brainliest if correct.
deff fn [24]

Answer:

  • D = -87
  • Dx = 174
  • Dy = -435
  • Dz = 0
  • (x, y, z) = (-2, 5, 0)

Step-by-step explanation:

The determinant of the coefficient matrix is ...

  D=\left|\begin{array}{ccc}2&5&3\\4&-1&-4\\-5&-2&6\end{array}\right|\\\\=2(-1)(6)+5(-4)(-5)+3(4)(-2)-2(-4)(-2)-5(4)(6)-3(-1)(-5)\\\\=-12+100-24-16-120-15=\boxed{-87}

The other determinants are found in similar fashion after substituting the constants on the right for each of the above matrix columns, in turn.

Those determinants are ...

  D_x=\left|\begin{array}{ccc}21&5&3\\-13&-1&-4\\0&-2&6\end{array}\right|=174

  D_y=\left|\begin{array}{ccc}2&21&3\\4&-13&-4\\-5&0&6\end{array}\right|=-435

  D_z=\left|\begin{array}{ccc}2&5&21\\4&-1&-13\\-5&-2&0\end{array}\right|=0

The solutions are ...

  x = 174/-87 = -2

  y = -435/-87 = 5

  z = 0

That is, (x, y, z) = (-2, 5, 0).

6 0
2 years ago
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