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DiKsa [7]
3 years ago
9

What is the solution to the system of equations below? 3x+4y-2z=-1 -x+6y+2z=7 4x-2y+3z=27

Mathematics
1 answer:
matrenka [14]3 years ago
6 0

Answer:

(3x+4y-2z=-1)= x=-1/3-4/3y+2/3z

(-x+6y=2z)= x=-7+6y=2z

(4x-2y+3z=27)= x=27/4+1/2-3/4z

Step-by-step explanation:

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Please help ASAP ....
vlada-n [284]

Answer:

21 3/4

Step-by-step explanation:

3 times 7 1/4 since the scale is 1:7 1/4. Good luck!! :)

7 0
3 years ago
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Evaluate the following expression using the values given.find 2x2 − 2z4 y2 − x2 z4 if x = −4, y = 3, and z = 2.numerical answers
aleksley [76]
To answer the question above, substitute the values of the variables x, y and z given to the equation.  
                                         2x² - 2(z^4)y² - x²(z^4) 
                              
                               2(-4)² -2(2^2)(3²) - (-4)²(2^4) = -296

Thus, the numerical answer to the question above is -296. 
7 0
4 years ago
Mona stopped at a gas station where the price per gallon was $2.80. She spent $14 to fill up her car. What equation would repres
alina1380 [7]

Answer:

A.) 5 x 2.80 B.) 100

Step-by-step explanation:

14/2.80=5 which is how many gallons

5 x 20 = 100 for the miles

8 0
3 years ago
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Crazy boy [7]

Answer:

u^{6}

Step-by-step explanation:

Using the rule of exponents

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7 0
3 years ago
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The straight line PQ with P(1,6) and Q(-6, 1). PQ is mapped onto P'Q' by a reflection in the line = 2. What are the coordinates
SSSSS [86.1K]

Answer:

P' = (1,-2)

Step-by-step explanation:

Given

P = (1.6)

Q = (-6,1)

Reflection over: y = 2

Required

Determine the coordinates of P'

From the given coordinates, the y coordinates of P is 6 and the line of reflection is at y = 2

Since we are to reflect over y = 2, only the y coordinate of P will be affected.

The idea behind reflecting a point over a line is to have an equal distance between [the original point & the line of reflection] and [the new point & the line of reflection]

So, what to do is:

First, calculate the difference between the y coordinates of P and the line of reflection.

The y coordinate of P is 6 and the line of reflection is at y = 2.

So, the difference is: 6 -2 = 4

Next, subtract the calculated difference from the line of reflection to get the y coordinate of P'

y coordinate of P' = 2 - 4 = -2

<em>Hence, the coordinate of P' is: (1,-2)</em>

7 0
3 years ago
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