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Advocard [28]
3 years ago
5

What is the side length , in inches, of the pet shop sign ?

Mathematics
2 answers:
rusak2 [61]3 years ago
7 0
Could i see a picture please
tamaranim1 [39]3 years ago
6 0
Include a picture and I will answer this for you
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The thicknesses of 81 randomly selected aluminum sheets were found to have a variance of 3.23. Construct the 98% confidence inte
Yuliya22 [10]

Answer:

The confidence interval for the population variance of the thicknesses of all aluminum sheets in this factory is Lower limit = 2.30, Upper limit = 4.83.

Step-by-step explanation:

The confidence interval for population variance is given as below:

[(n - 1)\times S^{2}  /  X^{2}  \alpha/2, n-1 ] < \alpha < [(n- 1)\times S^{2}  / X^{2} 1- \alpha/2, n- 1 ]

We are given

Confidence level = 98%

Sample size = n = 81

Degrees of freedom = n – 1 = 80

Sample Variance = S^2 = 3.23

X^{2}_{[\alpha/2, n - 1]}   = 112.3288\\\X^{2} _{1 -\alpha/2,n- 1} = 53.5401

(By using chi-square table)

[(n – 1)*S^2 / X^2 α/2, n– 1 ] < σ^2 < [(n – 1)*S^2 / X^2 1 -α/2, n– 1 ]

[(81 – 1)* 3.23 / 112.3288] < σ^2 < [(81 – 1)* 3.23/ 53.5401]

2.3004 < σ^2 < 4.8263

Lower limit = 2.30

Upper limit = 4.83.

8 0
2 years ago
A local restaurant offers a deal if you purchase 3 medium pizzas you get 2 side dishes for free if you get a total of 8 side dis
Margarita [4]
11 you count by 3 with the pizzas and 2 with the side dishes
5 0
3 years ago
How do I solve for x?
zheka24 [161]
3.) 5x-6=0, Add 6 to either side -> 5x=6, divide each side by 5 -> x=6/5 ---- 4.) x+y/3=5, multiple each side by 3 -> x+y=15, move y to the other side -> x=-y+15
3 0
3 years ago
Read 2 more answers
OK fianlly i reached ace yeeeeeeeeeeeeeeeeee
butalik [34]

Answer: Nice!

Step-by-step explanation:

Cause Nice!

8 0
3 years ago
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Please someone help me
Marysya12 [62]

<u>Answer:</u>

The correct answer option is D. 5.

<u>Step-by-step explanation:</u>

We are given the following expression where 4 is to be divided by a fraction 1/5:

4 ÷ \frac{1}{5}

This can also be written as:

\frac{4}{\frac{1}{5} }

Now to find the quotient of this, we will take the reciprocal of the fraction in the denominator to change it into multiplication.

4 \times \frac{5}{1}

Therefore, ignoring the 1 in denominator, we can simply multiply 4 by 5.

4 0
3 years ago
Read 2 more answers
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