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goldenfox [79]
3 years ago
12

The sixth grade art students are making a mosaic using tiles in the shape of right triangles. Each tile has leg measures of 3 ce

ntimeters and 5 centimeters. If there are 200 tiles in the mosaic, what is the area of the mosaic?
Mathematics
1 answer:
-Dominant- [34]3 years ago
3 0
So you find are length times width so 3 times 5 equals 15 usally you then divide by 2 but a trick I use is take how many ever you have and divide by 2 so 200 divide 2 equal 100 so 15 times 100 that's you anwser
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You measure 20 dogs' weights, and find they have a mean weight of 64 ounces. Assume the population standard deviation is 11.5 ou
Assoli18 [71]

95% confidence interval would be (58.96, 69.04).

Step-by-step explanation:

Since we have given that

Number of dogs' weight = 20

Mean = 64 ounces

Standard deviation = 11.5 ounces

We need to find the 95% confidence interval.

So, z = 1.96

so, interval would be

\bar{x}\pm z\dfrac{\sigma}{\sqrt{n}}\\\\=64\pm 1.96\times \dfrac{11.5}{\sqrt{20}}\\\\=64\pm 5.04\\\\=(64-5.04,64+5.04)\\\\=(58.96,69.04)

Hence, 95% confidence interval would be (58.96, 69.04).

4 0
3 years ago
at least $580 to buy a new Bose sound system. He has $210 in savings and plans to save $30 a week until he has enough money to b
rusak2 [61]

Answer:

13 weeks

Step-by-step explanation:

multiply $30 by 13 weeks you get $390 add the $210 and get $600

4 0
3 years ago
26 points!!!
yanalaym [24]
It will be:
b=+ or - 5C
7 0
3 years ago
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5 0
3 years ago
Which equation shows the value of -1.5 - 2.75?
VashaNatasha [74]
The answer is -1.5+(-2.75)=-4.25. This equation is the same as the result of -1.5 -2.75.
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3 years ago
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