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Tanzania [10]
3 years ago
8

Find the surface area of the 3D solid. Round to one decimal place.

Mathematics
2 answers:
Paha777 [63]3 years ago
3 0

Answer:

\pi \times 3^{2}

Step-by-step explanation:

formula

surface \: area = \pi \times r^{2}

Now just solve this and you have it.

surface \: area = \pi \times 3^{2}

Dmitry_Shevchenko [17]3 years ago
3 0
Pie times 3^2 that is what I think the answer is
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A building engineer analyzes a concrete column with a circular cross section. the circumference of the column is 18 \pi18π18, pi
BlackZzzverrR [31]
Answer: The area of the cross section is 81pi meters.

Since we are given the circumference, we can write and solve an equation about the diameter.

C = pi(d)
18pi = pi(d)
18 = d

Since the diameter is 18, the radius is half of that or 9 meters.

Now, plug 9 as the radius into the area formula.

A = pi(r^2)
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5 0
3 years ago
Help with just 3 please.
svet-max [94.6K]
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4 years ago
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Alex777 [14]
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3 0
3 years ago
The Baker Family spent $28 on 5 tickets.
White raven [17]

Answer:

I cannot not give the correct solution, need more context. How many children are there, how many adults are in the family? So I will explain in my explanation.

Step-by-step explanation:

If more context were given, for example:<em> 2 adults and 2 children.</em>

Then the bakers would have bought 2 adult tickets for ___ each

Then the bakers would have bought 3 children's tickets for ___ each

So using what we know we can create an equation:

<em>2A+3C=28</em>,<em> </em>

meaning 2 adult tickets plus 3 children's tickets costs a total of $28.

So we divide 28 by 5, which is the total amount of tickets.

28/5=5.6

So to figure the cost of children's tickets multiply the cost by amount.

3*$5.6=$16.8, C=16.8

To figure out the cost of the adults tickets multiple the cost by the amount.

2*$5.6=$11.2, A=11.2

a) the bakers would have bought <u>2</u> adult tickets for <u>5.6</u> each.

b) the bakers would have bought <u>3</u> children's tickets for <u>5.6</u> each.

8 0
4 years ago
He was a newcomer in the land, a chechaquo, and this was his first winter. The trouble with him was that he was without imaginat
Brilliant_brown [7]

Answer:

The author is trying to tell us that you need an imagination

Step-by-step explanation:

4 0
3 years ago
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