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3 years ago

Last question on the picture

Mathematics

2 answers:

Musya8 [376]3 years ago

7 0

Answer:

c it’s C 99% sure

Step-by-step explanation:

STatiana [176]3 years ago

4 0

Answer:

They get larger

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Graph the inequality x plus y is equal to or greater than -4

Setler [38]

Answer:

Step-by-step explanation:

x+y≥-4

consider x+y=-4

when x=0,y=-4

point is (0,-4)

when y=0,x=-4

point is (-4,0)

draw a line through (0,-4) and (-4,0)

put x=0,y=0

0+0≥-4

which is true.

Hence origin lies on the graph.

graph is on and right of the line.

4 0

4 years ago

If the line joining the points (2,y) and (4,6) has the slope -3/2 find the value of y

Yanka [14]

Answer: y=9

Step-by-step explanation:

slope= $\frac{y_{2} -y_{1} }{x_{2} -x_{1} }$

$\frac{-3}{2} =\frac{6-y}{4-2}$

$-6=2(6-y)$

$-6=12-2y$

$2y=18$

$y=9$

4 0

4 years ago

Factor out the coefficient of -6y-18

yawa3891 [41]

Answer:

factor -6 out of -6y - 18

Step-by-step explanation:

honestly i got it off of a math website that i use, all of my answers from it are usually correct but if it's wrong feel free to delete it

8 0

3 years ago

Solve 12x - 2 = 20. Round to the nearest ten-thousandth,

lbvjy [14]

Answer:

1.8333

Step-by-step explanation:

12x-2=20

Add 2 to both sides:

12x=22

Divide both sides by 12:

$x=\frac{22}{12}\approx 1.8333$

Hope this helps!

8 0

3 years ago

Read 2 more answers

Solve the system by elimination. − 2 x + 2 y + 3 z = 0 − 2 x − y + z = − 3 2 x + 3 y + 3 z = 5

taurus [48]

Answer:

$x=1, y=1, z=0$

Step-by-step explanation:

we have

$-2x+2y+3z=0$ ----> equation A

$-2x-y+z=-3$ -----> equation B

$2x+3y+3z=5$ ----> equation C

adds equation A and equation C

$-2x+2y+3z=0\\2x+3y+3z=5\\-------\\2y+3y+3z+3z=0+5$

$5y+6z=5$ -----> equation D

adds equation B and equation C

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

$2y+4z=2$ -----> equation E

we have the system

$5y+6z=5$ -----> equation D

$2y+4z=2$ -----> equation E

Multiply equation E by -1.5 both sides

$-1.5(2y+4z)=-1.5(2)$

$-3y-6z=-3$ -----> equation F

adds equation D and equation F

$5y+6z=5\\-3y-6z=-3\\---------\\5y-3y=5-3\\2y=2\\y=1$

Find the value of z

substitute the value of y in equation E (or substitute in equation D)

$2(1)+4z=2$

$2+4z=2$

$4z=0$

$z=0$

Find the value of x

substitute the value of y and z in equation A (or equation B or C)

$-2x+2(1)+3(0)=0$

$-2x+2=0$

$-2x=-2$

$x=1$

therefore

The solution of the system of equations is

$x=1, y=1, z=0$

4 0

4 years ago