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Tanzania [10]
3 years ago
9

Wat is the equation of the quadratic function with a vertex at (2,-25) and an x-intercept at (7,0)?

Mathematics
2 answers:
densk [106]3 years ago
8 0

Answer:

The answer is the last one

Step-by-step explanation: trust me i did this test yesterday

Andrej [43]3 years ago
6 0

Answer:

f(x)=(x+3)(x-7)

Step-by-step explanation:

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The total bill for five people was $74.90. They Agreed to leave a 20% tip and divide the total cost evenly. How much did each of
Bingel [31]
TIP:
74.90*.2=14.98 
74.90+14.98=89.88
TOTAL:
89.88/5=17.98

each person pays $17.98

Hope this helps!
3 0
2 years ago
Algebra <br><br> A) 50+Z=81 <br> Explain.
Ivan

Answer:31


Step-by-step explanation:

You subtract 81 and 50


5 0
2 years ago
Read 2 more answers
A researcher compares differences in positivity between participants in a low-, middle-, or upper-middle-class family. If she ob
777dan777 [17]

Answer:

(2, 12)

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 and on each group from j=1,\dots,n_j we have n_j individuals 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=Treatment}=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}=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=15-3=12.  

And the total degrees of freedom would be df=N-1=15 -1 =14  

And the correct answer would be 2 degrees of freedom for the numerator and 12 for the denominator

(2, 12)

3 0
3 years ago
If N(k) is the inverse of K(n) and N(12)=4 then K(4)=12<br><br> True or false ?
viva [34]

Answer: True is the answer

3 0
2 years ago
Read 2 more answers
Pls help extra points and mark brainlist
juin [17]

Answer:

it is c none of the above

Step-by-step explanation:

4 0
3 years ago
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