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snow_lady [41]
2 years ago
8

11. The table shows the lengths of fish caught by three,

Mathematics
1 answer:
blsea [12.9K]2 years ago
6 0

Numbers can be ordered in ascending or descending order.

The length of fishes from greatest to least is

  • Emily = 12 \frac 34.
  • Emma = 12.7.
  • Anne = 12 \frac 35

Given

Emma = 12.7

Anne = 12 \frac 35

Emily = 12 \frac 34

Convert all fractions to decimals

Emma = 12.7

Anne = 12.6

Emily = 12.75

Arrange from greatest to least

Emily = 12.75

Emma = 12.7

Anne = 12.6

<em>Hence, the length of fishes from greatest to least is </em>

Emily = 12 \frac 34     Emma = 12.7       Anne = 12 \frac 35

Read more about order of numbers at:

brainly.com/question/3729546

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Answer:

answer is 35

Step-by-step explanation:

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Whitch is the value of this expression when a=5 and k=-2
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25/9

Step-by-step explanation:

25/9

7 0
3 years ago
Manny is covering a book. The front of the book is 11.2 inches high and 7.3 inches wide. What is the area of the front of the bo
irina [24]

Answer:

81.76in^2

Step-by-step explanation:

Given data

Lenght of book=  11.2 inches

WIdth of book= 7.3 inches

We know that Area= Length* Width

Area= 11.2*7.3

Area= 81.76 in^2

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3 years ago
In a sample of 70 stores of a certain​ company, 62 violated a scanner accuracy standard. It has been demonstrated that the condi
uysha [10]

Answer:

We need at least 243 stores.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

The margin of error of the interval is:

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

For this problem, we have that:

n = 70, p = \frac{62}{70} = 0.886

95% confidence level

So \alpha = 0.05, z is the value of Z that has a pvalue of 1 - \frac{0.05}{2} = 0.975, so Z = 1.96.

Determine the number of stores that must be sampled in order to estimate the true proportion to within 0.04 with 95​% confidence using the​ large-sample method.

We need at least n stores.

n is found when M = 0.04. So

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

0.04 = 1.96\sqrt{\frac{0.886*0.114}}{n}}

0.04\sqrt{n} = 1.96\sqrt{0.886*0.114}

\sqrt{n} = \frac{1.96\sqrt{0.886*0.114}}{0.04}

(\sqrt{n})^{2} = (\frac{1.96\sqrt{0.886*0.114}}{0.04})^{2}

n = 242.5

Rounding up

We need at least 243 stores.

5 0
3 years ago
Haley substituted the values of a, b, and c into the quadratic formula below.
Marysya12 [62]
The quadratic formula is x equals negative b plus or minus the square root of b squared minus four times a times c, all over 2a. 
Looking at the equation, we can find the values for a, b, and c
a=7
b= -10
c= -2

So then putting that back into standard form, which is ax^2+bx+c, we know Haley's function in standard form is 7x^2-10x-2
7 0
3 years ago
Read 2 more answers
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