Surface area of prisms
2 answers:
Answer:
Step-by-step explanation:
The formula for the surface area of a rectangular prism is
S = 2(lw + lh + wh)
Data:
l = 12 mi
w = 12 mi
h = 8 mi
Calculations:
2(Top + Bottom) = 2lw = 2 × 12 × 12 = 288 mi²
2(Front + Back) = 2lh = 2 × 12 × 8 = 192 mi²
2(Left + Right) = 2wh = 2 × 12 × 8 = <u>192 mi² </u>
Total area = 672 mi²
The surface area of the rectangular prism is
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The scientific notation for the number 1063 is 1.063×10³ after using the concept of fraction option (B) 1.063×10³ is correct.
<h3>What is the number?</h3>A number is a mathematical entity that can be used to count, measure, or name things. For example, 1, 2, 56, etc. are the numbers.
It is given that:
The number is 1063
As we know the scientific notation can be written as:
1063 can be written as:
= 1063
= (1063/1000)1000
1.063×10³
Thus, the scientific notation for the number 1063 is 1.063×10³ after using the concept of fraction option (B) 1.063×10³ is correct.
Learn more about the number here:
#SPJ1
Answer:
The area of the logo is
Step-by-step explanation:
see the attached figure to better understand the problem
we know that
The area of a semicircle is equal to
so
The area of the logo is equal to multiply by 3 the area of one semicircle
we have
-----> the radius is half the diameter
substitute
Answer:
4.
Step-by-step explanation:
Step 1: <u>Formula.</u>
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Step 2: <u>Explain/define.</u>
- The interquartile range is the difference between quartile 3 and quartile 1.
- Quartile 1 is the median of the upper half of a data set.
- Quartile 3 is the median of the lower half of a data set.
- The median is the 'middle value.'
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Step 3: <u>Order/arrange.</u>
In order to find the median, you must first put the numbers in numerical order.
19, 21, 18, 17, 18, 22, 46
↓
17, 18, 18, 19, 21, 22, 46
The lower half of the data set, not including the median of the whole data set, is 17, 18, and 18.
The upper half of the data set is 21, 22, and 46.
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Step 4: <u>Solve.</u>
- 17, 18, 18
- 21, 22, 36
Next, we find the medians of both sets.
The median of the lower half is 18 (Q1).
The median of the upper half is 22 (Q3).
Lastly, we subtract Q3 from Q1.
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Step 5: <u>Conclude.</u>
I, therefore, believe the interquartile range of this data set is 4.