3 years ago

If a hummingbirds beak is 20mm long, how long is it in centimeters

Mathematics

1 answer:

melomori [17]3 years ago

7 0

The answer would be 2 hope this helped :)

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Scorpion4ik [409]

1764 is the answer your welcome I Siam’s this during my science homework

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3 years ago

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:

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.

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2 years ago

Alex and Freddy collect stamps. The number of stamps in Alex’s collection is in ratio 3:5 to the number of stamps in Freddy’s co

Tems11 [23]

Suppose Alex has 3x stamps, Freddy has 5x stamps. After Freddy gives Alex 10 stamps, Alex has 3x+10 while Freddy has 5x-10
the new ratio is 7 to 9, so we have the equation: (3x+10)/(5x-10)=7/9
9(3x+10)=7(5x-10)
27x+90=35x-70
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So Alex has 3*20=60 stamps while Freddy has 5*20=100. Together they have 160

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3 years ago

What is the answer to this question

timurjin [86]

I think it's 182 I'm not completely sure though

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3 years ago

Which gives the correct values for points A, B, C, and D?<br>

insens350 [35]

Answer:

The thing that gives corrects values for point A,B,C and D is....

Add a pic

Step-by-step explanation:

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3 years ago

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