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pychu [463]
3 years ago
13

2. A dance floor is a square with an area of 1,444 FT(2). What are the dimensions of the dance floor?

Mathematics
1 answer:
svet-max [94.6K]3 years ago
8 0

Answer:

The answer is C use a calculator

Step-by-step explanation:

not that hard lol

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Suppose a package delivery company purchased 17 trucks at the same time. Six trucks were purchased from manufacturer A, five fro
yaroslaw [1]

Answer:

df_{den}=df_{between}=N-K=17-3=14.

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"  

If we assume that we have 3 groups (A,B,C) and on each group we have sample of size (6,5,6) respectively , on each group we can define the following formulas of variation:  

SS_{total}=\sum_{j=1}^p \sum_{i=1}^{n_j} (x_{ij}-\bar x)^2  

SS_{between}=SS_{model}=\sum_{j=1}^p n_j (\bar x_{j}-\bar x)^2  

SS_{within}=SS_{error}=\sum_{j=1}^p \sum_{i=1}^{n_j} (x_{ij}-\bar x_j)^2  

And we have this property  

SST=SS_{between}+SS_{within}  

The degrees of freedom for the numerator on this case is given by df_{num}=df_{within}=k-1=3-1=2 where k =3 represent the number of groups.

The degrees of freedom for the denominator on this case is given by df_{den}=df_{between}=N-K=17-3=14.

And the total degrees of freedom would be df=N-1=17 -1 =16

On this case the correct answer would be 2 for the numerator and 14 for the denominator.  

Best answer

14

4 0
3 years ago
1/2(4x + 12) = 2 solve equation
Ira Lisetskai [31]

Answer: x=-2

Step-by-step explanation:

Here is the step-by-step solving.

8 0
3 years ago
6x + 9y = -15
tester [92]
Answer:
A
Step-by-step explanation
You can divide 6x,9y and -15 by 3
6x/3=2x
9y/3=3y
-15/3=(-5)
Combine them to get the factored form of 6x+9y-15:
3(2x+3y-5)
4 0
2 years ago
A box contains 500 apples. 32% are rotten. How many rotten apples are there?
ziro4ka [17]
Lets find 32% of 500.

32/100 = .32

.32 * 500 = 160

Answer: 160 apples are rotten. 
6 0
3 years ago
Read 2 more answers
En una ciudad se registró una temperatura de 12°c bajo cero a las 3:00 am si a las 7:00am del mismo dia la temperatura era tres
hjlf

Answer:

24°c

Step-by-step explanation:

Cuando se dice que la temperatura esta "mayor" significaria que esta aumentando y entorno subiendo a ser mas caliente. Siendo este el caso, si la temperatura a las 3:00 estaba a 12c bajo cero entonces a las 7:00 estaria a 24c. Esto es por que un aumento de tres vecesseria un aumento de 36 grados (12*3). 12c grados bajo cero seria un numero negativo y si sumamos estos numeros nos daria 24c grados.

-12 + 36 = 24

7 0
2 years ago
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