PLEASE HELP!! What is the slope of the line in the graph?

Mathematics

1 answer:

Fittoniya [83]3 years ago

4 0

Answer:

-3/4

Step-by-step explanation:

down 3 right 4

..........

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Solve the system by substitution<br> -x - y - z= -8<br> -4x + 4y + 5z = 7<br> 2x + 2z = 4

Stella [2.4K]

First:

2x + 2z = 4

2(x+z)=4

x+z=4/2

x=2-z

-x - y - z= -8

-(2-z)-y-z= -8 replace x

-2+z-y-z= -8 (cancel z)

-2-y= -8

6 = y

Then:

-4x + 4y + 5z = 7 replace x and y

-4(2-z)+4*6 + 5z = 7

-8 + 4z + 24 + 5z = 7

16 + 9z = 7

9z = 7 - 16

9z = -9

z = -9/9

z= -1

Finally

x= 2-z replace z

x = 2- (-1)

x = 3

5 0

3 years ago

Need a gf then i got you

Novosadov [1.4K]

Hi i’m answering on here so i can ask someone something through the messages bc i haven’t answered enough questions

6 0

3 years ago

Read 2 more answers

Find the area of a circle that has a diameter = 18

ki77a [65]

Answer:

About 254.469 square units

Step-by-step explanation:

To find the area of a circle, you need to multiply the square of the radius by pi. To find the radius of a circle, you need to divide the diameter by 2, which in this case is 18/2=9. Now, you can plug it into the formula to find that the area of this circle is $\pi \cdot 9^2 \approx 254.469$ . Hope this helps!