All categories

3 years ago

What is the solution to the system x+3y+z=8 , 3x+2y-2z=5 , 4x-3t+kz=0

Mathematics

1 answer:

brilliants [131]3 years ago

7 0

Answer:

Step-by-step explanation:

You might be interested in

What is the standard form of 5x^2+5y^2-10x+20y-30=0

o-na [289]

$5x^2+5y^2-10x+20y-30=0$

We need to get the equation in square form

We apply completing the square method

$5x^2-10x+5y^2+20y-30=0$

Divide all the terms by 5

$x^2-2x+y^2+4y-6=0$

Group x terms and y terms separately

$(x^2-2x)+(y^2+4y)-6=0$

By completing the square method, we take half of coefficient of x and square it

$\frac{-2}{2} = -1$

square it $(-1)^2= 1$

Add 1 on both sides

$(x^2-2x+1)+(y^2+4y)-6=+1$

$\frac{4}{2} = 2$

square it $(2)^2= 4$

Add 4 on both sides

$(x^2-2x+1)+(y^2+4y+4)-6=0+1+4$

Add 6 on both sides

$(x^2-2x+1)+(y^2+4y+4)=6+1+4$

Now factor both parenthesis

$(x-1)^2+(y+2)^2=11$

The equation of the circle is $(x-1)^2+(y+2)^2=11$

7 0

4 years ago

From city A to city B has 3 ways, city A to city C has 1 way, city B to city D has 1 way, C to D has 4 ways. There is no way fro

Ipatiy [6.2K]

Answer:

4 ways

Step-by-step explanation:

In the picture figure you can see these ways.

4 0

3 years ago

Sammie competes in 14 chess matches. Of those matches, she wins 8. What percent of the matches did Sammie win?

weeeeeb [17]

Answer:

57.1428%

Step-by-step explanation:

8 divided by 14 = 0.57142857142 then turn it to a fraction which you move the period two times to the right thus the answer is

57.1428....

5 0

3 years ago

On a particular airline, checked bags can weigh no more than 50 pounds. Sally packed 32 pounds of clothes and five identical gif

mel-nik [20]

Answer:

50-32*8

Step-by-step explanation:

8 0

3 years ago

What is the area of a rectangle with length of 1/12 foot and the width 1/4 foot

baherus [9]

Solution Steps:

1/12 x 3/12

3/144

Simplify = 1/48

Hopefully this is correct

7 0

3 years ago