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Morgarella [4.7K]
3 years ago
14

Please help me ASAP!!

Mathematics
1 answer:
Sonja [21]3 years ago
5 0

Answer:

Option c is the correct answer.

Step-by-step explanation:

1 -2 3 -2

6 2 2 -48

1 4 3 -38

   

R2-6R!=R2    

R3-R1=R3    

1 -2 3 -2

0 14 -16 -36

0 6 0 -36

   

R3/6=R3    

   

1 -2 3 -2

0 14 -16 -36

0 1 0 -6

The last row gives y =-6

II row gives 14y-16z=-36 : Substitute for y to get z=-3

From I row x-2y+3z=-2

Substitute for y and z

x=-2+2y-3z = -5

Hence correct solution is

(-5,-6,-3)

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Judy is correct and Mrs. Ferguson is wrong


8 0
3 years ago
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3 years ago
What does x+2/5=12 equal and I would love to Seehow you worked it out
sladkih [1.3K]

You said                      x + 2/5 = 12

It might be easier to handle if we use the decimal for 2/5.

                                               x + 0.4 = 12

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That's all there is to it.  I'm sorry I can't make it
more complicated for you.

8 0
3 years ago
Read 2 more answers
NO LINKS!! Stat whether A and B are independent or dependent. Part 2​
Charra [1.4K]

Answer:

Step-by-step explanation:

A). "If you do not study and fail the next test"

  Two statements are combined in the given statement.

  "If you don't study" and "fail the next test"

  Second statement is the consequence of the first statement.

  Therefore, events are dependent.

B). If you select a card from a deck and without replacing it, you select another card.

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6 0
4 years ago
*NEED HELP??!!! The regression equation y = 3.648 • 1.182x approximates the cost to go on a safari, y, given the number of years
Ghella [55]

Answer:

D) $9.95

Corrected question;

! The regression equation y = 3.648 • 1.182^x approximates the cost to go on a safari, y, given the number of years since it opened in 2005, x. Which is the best estimate for the cost of a vehicle to drive through the safari in 2011?

Step-by-step explanation:

Given;

The regression equation

y = 3.648 • 1.182^x

Where;

x = number of years since it opened in 2005

y = the cost to go on a safari

For this case;

x at 2011 = 2011 - 2005

x = 6 years

Substituting into the regression equation;

y = 3.648 × 1.182^(6)

y = 9.948547753694156132352

y = $9.95

7 0
3 years ago
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