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4 years ago

50 points!

Mathematics

1 answer:

Nana76 [90]4 years ago

6 0

Answer:

y = 5 − 2x

4x + 2y = 10

(Infinite solutions)

x = 26 − 3y

2x + 6y = 22

(No solution)

5x + 4y = 6

10x − 2y = 7

(Single solution)

x + 2y = 3

4x + 8y = 15

(No solution)

3x + 4y = 17

-6x = 10y − 39

(Single solution)

x + 5y = 24

5x = 12 − y

(Single solution)

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Just need help with question four???

GREYUIT [131]

0.0009 m or 9 x 10 ^ -3

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4 years ago

What is the rate of change and initial value for the linear relation that includes the points shown in the table?

Wittaler [7]

Answer:

Initial value $12$ , rate of change: $-2$

Step-by-step explanation:

Step 1

Find the rate of change

we know that

In a linear equation the rate of change is equal to the slope

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

we have

$A(1,10)\ B(2,8)$

Substitute the values

$m=\frac{8-10}{2-1}$

$m=-2$ ----> rate of change

Step 2

Find the initial value

The equation of the line into slope-point form is equal to

$y-y1=m(x-x1)$

Substitute

$y-10=-2(x-1)$

$y=-2x+2+10$ $y=-2x+12$

The initial value is the value of y when the value of x is equal to zero (is the y-intercept)

$y=-2*0+12=12$ ----> initial value

7 0

3 years ago

Read 2 more answers

HELP ILL GIVE MEDALS AND MARK BRAINLIEST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Maksim231197 [3]

z score = (1300-1700)/75

z score = -400/75 = -5.33

7 0

3 years ago

Please answer the question below

nadezda [96]

657.1 ?
As so get the surface area you do widths X length X height and you split the diagram so you only have to work out the cube and the prism by themselves, then you add them together to get 657.135 and rounding to the nearest tenth would be 657.1 I think :))

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3 years ago

What is <br> 1 over 5m minus 20

mrs_skeptik [129]

I think is 18.5,.............

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3 years ago