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3 years ago

Rachel buys a meter of fabric, but only uses 20 cm, How much fabric does she have left over

Mathematics

1 answer:

xeze [42]3 years ago

5 0

Answer:

Step-by-step explanation:

there are 100 centimeters in 1 meter

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- --FREE BRAINLIEST-- - [ Multiply (2 5/8) (-2 3/8) ] - - - [A) -6 33/40] --- [B) -4 3/8] --- [C) 4 3/8] [D) 6 33/40]

vodka [1.7K]

Answer:

Step-by-step explanation:

Because reasons

6 0

3 years ago

Read 2 more answers

A researcher evaluates the significance of a multiple-regression equation and obtains an F-ratio with df = 2,24. How many partic

alisha [4.7K]

Answer:

N=27 participants

Step-by-step explanation:

Analysis of variance (ANOVA) "is used to analyze the differences among group means in a sample".

The sum of squares "is the sum of the square of variation, where variation is defined as the spread between each individual value and the grand mean"

When we conduct a multiple regression we want to know about the relationship between several independent or predictor variables and a dependent or criterion variable.

If we assume that we have $k$ independent variables and we have $j=1,\dots,j$ individuals, we can define the following formulas of variation:

$SS_{total}=\sum_{j=1}^n (y_j-\bar y)^2$

$SS_{regression}=SS_{model}=\sum_{j=1}^n (\hat y_{j}-\bar y)^2$

$SS_{error}=\sum_{j=1}^n (y_{j}-\hat y_j)^2$

And we have this property

$SST=SS_{regression}+SS_{error}$

The degrees of freedom for the model on this case is given by $df_{model}=df_{regression}=k=2$ where k =2 represent the number of variables.

The degrees of freedom for the error on this case is given by $df_{error}=N-k-1=24$ . Sinc we know k we can find N.

$N=24+k+1=24+2+1=27$

And the total degrees of freedom would be $df=N-1=27 -1 =26$

On this case the correct answer would be N=27 participants

6 0

3 years ago

Which of the playground’s features are more than 25 feet away from the swings? Choose the THREE correct answers.

crimeas [40]

The playground’s features are more than 25 feet away from the swings are;

<em><u>Sandbox, Water fountain, Jungle gym</u></em>

Looking at the given graph, the distances of the other features from the swing are;

For sandbox; 8 units

For restroom; 4 units

For water fountain; 9 units

For Jungle gym; 7 units

Bench; 5 units

Now we are told that each units on the graph represents 5 ft.

Thus, the respective distances from the swing are;

Sandbox to swing = 8 × 5 = 40 ft

Restroom to swing = 4 × 5 = 20 ft

Water fountain to swing = 9 × 5 = 45 ft

Jungle gym to swing = 7 × 5 = 35 ft

Bench to swing = 5 × 5 = 25 ft

Thus, the playground’s features are more than 25 feet away from the swings are;

Sandbox, Water fountain, Jungle gym

Read more about interpretation of graphs at; brainly.com/question/1638242

5 0

2 years ago

I keep getting this wrong, what do i do

Zigmanuir [339]

The answer is (3,3) point to X move up four times than to the left 2 times

5 0

3 years ago

Read 2 more answers

7. Hobbies Members of a reading group order books for $89.10 and bookmarks

qaws [65]

Answer:

(89.10+10.62)/18 =

(99.72)/18 =

= 5.54

Verification:

5.54*18 = 99.72

how much does each

person owe on average? $5.54

Step-by-step explanation:

4 0

3 years ago