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Makovka662 [10]
3 years ago
11

PLZ HELP!!!!!! What is the equation of the line graphed below?

Mathematics
1 answer:
alex41 [277]3 years ago
6 0

Answer:

Your answer is B

Step-by-step explanation:

First we have to find the Y intercept, which is -2.

Then you have to find the slope. Rise/Run

If you count up 5 and left 2 you get your next point. Meaning that 5/-2 is your slope.

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Jake, Kim and Lee share some money in the ratio 1 : 3 : 6.
Scrat [10]

Answer:

£27.00

Step-by-step explanation:

3 × £9 = £27 amount Lee gets

3 0
2 years ago
A regression of y = calcium content (g/L) on x = dissolved material (mg/cm2) was reported in the article "Use of Fly Ash or Sili
MatroZZZ [7]

Answer:

a) The slope = 0.144 , means that an increase in dissolved material by 1 mg/cm^2 will lead to an increase in Calcium content by 0.144 g/l

while the coefficient of determination = 0.869 , means that 86% of the variation ( natural ) of calcium content is explainable using the Linear model.

b) 10.878

c) S ≈ 1.99

Step-by-step explanation:

a) The slope = 0.144 , means that an increase in dissolved material by 1 mg/cm^2 will lead to an increase in Calcium content by 0.144 g/l

while the coefficient of determination = 0.869 , means that 86% of the variation ( natural ) of calcium content is explainable using the Linear model.

<u>B) Point estimate of true average calcium content </u>

Given that dissolved material = 50 mg/cm^2

= 3.678 + 0.144 * dissolved material

=  3.678 + 7.2 =  10.878

<u>C) Determine an estimate of error standard deviation </u>

Given that ; sum of squares ( SST ) = 320.398

                   COD ( r )  = 0.86

first;  calculate the value of SSE = SST - SST ( r^2 )

SSE = 320.398 - 320.398 ( 0.86) ^2

       = 83.43

Finally ; determine the estimate of error standard deviation

S^2 = SSE / n -2

      = 83.43 / 23 - 2

∴ S ≈ 1.99

6 0
3 years ago
Hana's height is given as 162 cm, correct to the nearest cm.
SashulF [63]

Answer:

upper is 2 lower Po is 2 step 1 I added after what the answer is that I divide it then that's the answers

6 0
2 years ago
Solve for r. 0.5(r+2.75) = 3
nirvana33 [79]

Answer:

r=3.25

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
PLZZ HELP I’m bad at math.
ipn [44]

Answer:

y<\frac{-1}{3}x+1 is inequality shown on graph.

Step-by-step explanation:

The graph shows representation of inequality,

Here, Line passes through points say, A(3,0) and B(0,1)

The slope of line is given by m=\frac{Y2-Y1}{X2-X1}

m=\frac{Y2-Y1}{X2-X1}

m=\frac{1-0}{0-3}

m=\frac{-1}{3}

and Y-intercept is c=1

The equation of line is given by y=mx+c

y=\frac{-1}{3}x+1 is equation of line in graph.

To decide which side you are going to shaded area on the graph

Take test of origin.

If (0,0) is statisfy the equation then, shaded the graph towards the origin.

Let suppose,

Take, y<\frac{-1}{3}x+1

0<\frac{-1}{3}(0)+1

0<1

TRUE,

Therefore, y<\frac{-1}{3}x+1 is inequality shown on graph.

4 0
3 years ago
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