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LenaWriter [7]
3 years ago
6

HELP ME RIGHT NOW PLEASE!!!!!!!

Mathematics
1 answer:
IRINA_888 [86]3 years ago
5 0
(9*2)+(x*2)=48
18+2x=48
2x=30
x=15
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What is the equation for the linear model in the scatter plot obtained by choosing the two points closest to the line?
HACTEHA [7]

Answer:

Option C is the answer.

Step-by-step explanation:

To find the equation of the straight line equation i.e, we must be given with the two points \left (x_{1},y_{1} \right ) and \left (x_{2},y_{2}\right )

Since from the graph the two points closest to the line are\left ( 10,36 \right ) and \left ( 22,12 \right ).

Equation of line with two points closest to the line :

                                                    y-y_{1}=m\cdot \left ( x-x_{1} \right )

where m is the slope.

First we find the slope(m)=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}  

m=\frac{12-36}{22-10}

on simplify we get,  m=-2.

Now, to find  the equation of the line:  y-y_{1}=m\cdot \left ( x-x_{1} \right )

y-36=\left ( -2 \right )\cdot \left ( x-10 \right )

Apply distributive property on right hand side, we get

y-36=-2\cdot x+20

Adding both sides by 36, we get

y=-2x+20+36

y=-2x+56.

The equation for the linear  model in the scatter plot obtained by the two closest point \left ( 10,36 \right ) and \left ( 22,12 \right ) closest to the line is,

y=-2x+56










7 0
3 years ago
Read 2 more answers
I need some help with a math problem
alina1380 [7]

Answer:

3m-25>68

Step-by-step explanation:

Your Welcome

Btw- I didn't write a step by step explanation cause it doesn't need one.

4 0
3 years ago
a cookie recipe calls 3 1/4 cups of flour. the recipe makes 3 dozen cookies. how much flour us needed to make 144 cookies
Mnenie [13.5K]

1 dozen = 12

144 / 12 = 12 dozen

12 dozen/ 3 = 4

They need 4 times the amount of flour:

3 1/4 x 4 = 13

They need 13 cups of flour

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3 years ago
Three years ago, Tristan bought a 30-year, 5.45%, $1,000 bond. The bond pays interest semiannually. He wants to sell the bond af
Gemiola [76]
Each semiannual payment is (1/2)*.0545*$1000 = $27.25. There are 2*30 = 60 such payments in 30 years. After 6 payments, there will be 54 left.

a) The value of Tristan's bond is $1238.08

b) The value of Tristan's bond is $926.91

3 0
3 years ago
Use your knowledge of scientific notation, SI prefixes, conversion factors, and
mixas84 [53]
1 x 10^10 or 10000000000
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3 years ago
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