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miv72 [106K]
3 years ago
11

Please help! Will vote brainliest!

Mathematics
1 answer:
adoni [48]3 years ago
6 0

Step-by-step explanation:

D={0,1,2,..}

E={1,4,9,16,25}

F={22,24,26,28}

expression 4 is correct

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A linear regression is done on data the line of best fit is y= 1.25x-6.25. What is the residual for the point (1,1)?
Damm [24]

Answer:

6

Step-by-step explanation:

Find the predicted y value when x=1:

\hat{y}=1.25x-6.25\\\hat{y}=1.25(1)-6.25\\\hat{y}=1.25-6.25\\\hat{y}=-5

Find the residual:

\text{Residual}=\text{Actual Value}-\text{Predicted Value}\\\text{Residual}=y-\hat{y}\\\text{Residual}=1-(-5)\\\text{Residual}=1+5\\\text{Residual}=6

Because our residual is positive, this is an indicator that our predicted y value is too low.

6 0
2 years ago
Tenant has completed 3/20 of homework . Write the amount in decimals
LuckyWell [14K]

3/20 is 0.15....

If you do 3 divided by 20 it equals 0.15

6 0
3 years ago
1. A line passes through the points (3, 15) and (9, 45). What is the slope of this line?​
Orlov [11]

Answer:

m=5

Step-by-step explanation:

      Y2-Y1

m= ______

      X2-X1

X1= 3

Y1= 15

X2= 9

Y2= 45

45-15     30

____= ____

9-3         6

30/6=5

m=5

6 0
2 years ago
which ordered pair isa solution of the equation y=8x+3 A.Only (1,11) B.Only (-1,-5) C.Only (1,11) and (-1,-5) D Neither
makkiz [27]

Answer:

C (1,11) and (-1,-5)

Step-by-step explanation:

3 0
3 years ago
Forex is the name of the U.S. stock exchange.<br><br> -true<br> -false
ss7ja [257]

Answer:

false

Step-by-step explanation:

hello

this is false

FOREX means Foreign Exchange

it refers to the foreign exchange market

hope this helps

6 0
3 years ago
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