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Gre4nikov [31]
3 years ago
9

Calculating area of rectangle.

Mathematics
1 answer:
Artemon [7]3 years ago
7 0

Answer:

Your measurements; Area = 216.108 cm²

Another student's measurements; Area = 216.9404 cm²

- Difference in area could be as a result of human error or perhaps that they made use of different measuring tools.

Step-by-step explanation:

For Your measurements;

Length of rectangle = 20.70 cm

Width of rectangle = 10.44 cm

Area of rectangle is given by; A = length × width = 20.7 × 10.44 = 216.108 cm²

For Another student's measurements;

Length of rectangle = 20.74 cm

Width of rectangle = 10.46 cm

Area = 20.74 × 10.46

Area = 216.9404 cm²

The areas they both obtained are not of equal values and this could be as a result of human error or perhaps that they used different measuring tools.

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Equivalent fraction to 42\63
Nikitich [7]

Answer:

2/3

Step-by-step explanation:

5 0
3 years ago
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Harriet lives on the ground level of her apartment building. The level she lives on is repersented as by?
sattari [20]

<u>Answer:</u>

zero


<u>Explanation:</u>

<u>In any system:</u>

the ground (base) is referred to as zero lever

what comes above the ground level would be positive

what comes below the ground level would be negative


<u>Now, we are given that:</u>

she lives on the ground floor.


Based on the above, the representation would simply be zero


Hope this helps :)


4 0
3 years ago
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I need help on this ASAP!!
vazorg [7]
The answer is 16 units
An easy way to find the perimeter is remembering the formula of a+b+c.
So in this case, you count how many units each line of the triangle it covers. 4+6+6= 16
7 0
3 years ago
Which expressions are equivalent to 0.5*m*n*4<br> 2(m+n)<br> 0.5m + 4n<br> None of the above
Mnenie [13.5K]
0.5*m*n*4=0.5*4*m*n = 2*m*n = 2mn

2(m+n) = 2m + 2n ≠ 2mn

0.5m + 4n ≠ 2mn

The answer is None of the above
8 0
3 years ago
drug sniffing dogs must be 95% accurate in their responses because their handlers don't want them to miss durgs and also don't w
GenaCL600 [577]

Answer:

95% Confidence interval:  (0.8449,0.9951)

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 50

Number of times the dog is right, x = 46

\hat{p} = \dfrac{x}{n} = \dfrac{46}{50} = 0.92

95% Confidence interval:

\hat{p}\pm z_{stat}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}

z_{critical}\text{ at}~\alpha_{0.05} = 1.96

Putting the values, we get:

0.92 \pm 1.96(\sqrt{\dfrac{0.92(1-0.92)}{50}})\\\\ = 0.92\pm 0.0751\\\\=(0.8449,0.9951)

(0.8449,0.9951) is the required 95% confidence interval for the proportion of times the dog will be correct.

7 0
3 years ago
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