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allochka39001 [22]
2 years ago
5

Find the surface area

Mathematics
1 answer:
Cloud [144]2 years ago
8 0

Answer:

the surface area is 648

Solution:

A=2(wl+hl+hw)=2·(9·9+13.5·9+13.5·9)=648

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A parking lot charges $3 to park a car for the first hour and $2 per hour after that. If you use more than one parking space, th
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Consider the charge for parking one car for t hours.

If t is more than 1, then the function is y=3+2(t-1), because 3 $ are payed for the first hour, then for t-1 of the left hours, we pay 2 $.

If t is one, then the rule y=3+2(t-1) still calculates the charge of 3 $, because substituting t with one in the formula yields 3.


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0.75 times 3+2(t-1). Thus, the charge for the 3 cars is given by:

3+2(t-1)+0.75[3+2(t-1)]+0.75[3+2(t-1)]=3+2(t-1)+<span>0.75 × 2[3 + 2(t − 1)].


Thus, the function which total parking charge of parking 3 cars for t hours is:

</span><span>f(t) = (3 + 2(t − 1)) + 0.75 × 2(3 + 2(t − 1)) 


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3 years ago
Popular magazines rank colleges and universities on their ""academic quality"" in serving undergraduate students. Describe two c
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Step-by-step explanation:

To answer this question effectively, it's important for us to know that a quantitative variable usually has numerical values, and also have units of measure as well while categorical variables simply places each student into a specific category.

Now, the two quantitative variables we will consider are;

i) The number of students in the school vis - a - vis the number of classes in the school. In order words, number of students per class

ii) The rate of graduation of students.

Also, the two categorical variables we will consider are;

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ii) Region of country of students

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