All categories

3 years ago

Plzz help me with this question.

Mathematics

2 answers:

salantis [7]3 years ago

6 0

I think it’s -4, i may be wrong. i plugged in the -1 for x

malfutka [58]3 years ago

6 0

The answer is 4.
When placing the absolute value sign (the lines that are around the equation) this causes any answer to automatically turn positive.
So (-1)^3 -3
-1-3=-4
=4 due to the absolute value sign

You might be interested in

Please help me out! And please show your work!! | | | v

Sedaia [141]

8/20 is your answer buddy

6 0

3 years ago

Read 2 more answers

What is the slope of the line through (-7.-8) and (0.4)?

Dmitry_Shevchenko [17]

Use the equation (x2-x1)/(y2-y1)

Substitute the value of x and y

7 0

3 years ago

Can someone plz help me with this!

asambeis [7]

Answer:

(arranged from top to bottom)

System #3, where x=6

System #1, where x=4

System #7, where x=3

System #5, where x=2

System #2, where x=1

Step-by-step explanation:

System #1: x=4

$2x+y=10\\x-3y=-2$

To solve, start by isolating your first equation for y.

$2x+y=10\\y=-2x+10$

Now, plug this value of y into your second equation.

$x-3(-2x+10)=-2\\x+6x-30=-2\\7x=28\\x=4$

System #2: x=1

$x+2y=5\\2x+y=4$

Isolate your second equation for y.

$2x+y=4\\y=-2x+4$

Plug this value of y into your first equation.

$x+2(-2x+4)=5\\x+(-4x)+8=5\\x-4x+8=5\\-3x=-3\\x=1$

System #3: x=6

$5x+y=33\\x=18-4y$

Isolate your first equation for y.

$5x+y=33\\y=-5x+33$

Plug this value of y into your second equation.

$x=18-4(-5x+33)\\x=18+20x-132\\-19x=-114\\x=6$

System #4: all real numbers (not included in your diagram)

$y=13-2x\\8x+4y=52$

Plug your value of y into your second equation.

$8x+4(13-2x)=52\\8x+52-8x=52\\0=0$

all real numbers are solutions

System #5: x=2

$x+3y=5\\6x-y=11$

Isolate your second equation for y.

$6x-y=11\\-y=-6x+11\\y=6x-11$

Plug in your value of y to your first equation.

$x+3(6x-11)=5\\x+18x-33=5\\19x=38\\x=2$

System #6: no solution (not included in your diagram)

$2x+y=10\\-6x-3y=-2$

Isolate your first equation for y.

$2x+y=10\\y=-2x+10$

Plug your value of y into your second equation.

$-6x-3(-2x+10)=-2\\-6x+6x-30=-2\\-30=-2$

no solution

System #7: x=3

$y=10+x\\2x+3y=45$

Plug your value of y into your second equation.

$2x+3(10+x)=45\\2x+30+3x=45\\5x=15\\x=3$

3 0

3 years ago

What is 1-1 please help

vladimir1956 [14]

Answer:

Step-by-step explanation:

1-1=0

It's common knowledge that 1-1=0 so I dont know how to explain it any further

4 0

3 years ago

Read 2 more answers

Find the value of each trigonometric ratio. 18) cos X Y 24 24 25 24 A) C) 25 B) D) 24 25 25

irina [24]

Answer:

Step-by-step explanation:

3 0

2 years ago