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abruzzese [7]
3 years ago
8

If you could help me with this it would be greatly appreciated!

Mathematics
2 answers:
asambeis [7]3 years ago
7 0
Your answer will be B
Ierofanga [76]3 years ago
3 0
Here is your answer

B.\sqrt{81}

C. 9

REASON:

Let the side of square be a feet

Area of square ={a}^{2}

so,

{a}^{2}= 81

a= \sqrt{81}

a= 9 feet

HOPE IT IS USEFUL
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what is the probability of hitting each target if it is assumed that a player’s throw will always hit the board? hint: the proba
solong [7]
Because the actual dimensions of the board and the target are missing, let us supply the missing values. 

Let:

radius of board = 6 inches
radius of target = 2 inches

Area of board = pi * r^2 = pi*6^2 = 36pi
Area of target = pi * r^2 = pi*2^2 = 4pi

Probability of hitting the target = 4pi / 36pi = 1/9

Therefore, there is a 1/9 chance of hitting the target on the board.
4 0
3 years ago
Solve for q.<br> 7(q + 7) = 5q + 59
ryzh [129]

Answer:

5.

Step-by-step explanation:

7(q + 7) = 5q + 59

7q + 49 = 5q + 59

7q - 5q = 59 - 49

2q = 10

q = 5.

6 0
3 years ago
Write a story that could represent this math problem.
qaws [65]

When jake woke up, he said "Hazah! today is my b-day!" and he ran down stairs, the party had already started! His freinds had all come over, Puggermen, their dog, was jumping up on him. When it turned late, & it was time for cake. They didnt know how to cut it! They figured it was 2/6 x 3/4 equals a 4th of a quarter, when they figured it out, it was a qurter to 1! 0.25.

<h2><u><em>Hope I help :)!</em></u></h2>
4 0
2 years ago
Read 2 more answers
uncooked rice has about 4/13 the weight of cooked rice. You want to make 6.5 pounds of rice for a recipe. How many pounds of unc
Verizon [17]
You would multiply 6.5 times 4/13 and then add that to 6.5 to know the amount of uncooked rice you need so...
6.5x4/13=2
2+6.5=8.5
5 0
2 years ago
Please answer this question based on the following data. SSTR = 6,750 H0: μ1= μ2=μ3=μ4 SSE = 8,000 Ha: at least one mean is diff
Nookie1986 [14]

Answer:

P_v =P(F_{3,16}>4.5)=0.0180

So on this case the best option for the answer would be:

between .01 and .025

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 4 groups and on each group from j=1,\dots,5 we have 5 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 =6750  

SS_{within}=SS_{error}=\sum_{j=1}^p \sum_{i=1}^{n_j} (x_{ij}-\bar x_j)^2 =8000  

And we have this property  

SST=SS_{between}+SS_{within}=6750+8000=14750  

The degrees of freedom for the numerator on this case is given by df_{num}=k-1=4-1=3 where k =4 represent the number of groups.

The degrees of freedom for the denominator on this case is given by df_{den}=df_{between}=N-K=20-4=16.

And the total degrees of freedom would be df=N-1=20 -1 =19

We can find the MSR=\frac{6750}{3}=2250

And MSE=\frac{8000}{16}=500

And the we can find the F statistic F=\frac{MSR}{MSE}=\frac{2250}{500}=4.5

And with that we can find the p value. On this case the correct answer would be 3 for the numerator and 16 for the denominator.  

P_v =P(F_{3,16}>4.5)=0.0180

So on this case the best option for the answer would be:

between .01 and .025

6 0
3 years ago
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