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sergey [27]
3 years ago
8

Find the surface area of the polyhedron below. The area of each base is 65 cm^2​

Mathematics
1 answer:
yarga [219]3 years ago
8 0

Answer:

D. 290 square cm

Step-by-step explanation:

Surface area of polyhedron

= 2 \times 65 + 7 \times 8 + 4  \times 8 + 3 \times 8 + 3(2 \times 8) \\  = 130 + 56 + 32 + 24 + 48 \\  = 290 \:  {cm}^{2}

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Now suppose that not every player can play in every position. The outfielders (left field, center field, right field) can play a
VladimirAG [237]

Answer:

The team can assign field positions to 9 of the 19 players in 181,440 different ways.

Step-by-step explanation:

Since the outfielders (left field, center field, right field) can play any outfield position, the infielders (1st base, 2nd base, 3rd base, short stop) can play any infield position, the pitchers can only pitch, and the catchers can only catch, supposing a certain team has 20 players, of whom 3 are catchers, 4 are outfielders, 6 are infielders, and 7 are pitchers, to determine how many ways can the team assign field positions to 9 of the 19 players, putting each of the 9 selected players in a position he can play, and ensuring that all 9 field positions are filled, the following calculation must be performed:

3 x 7 x 6 x 5 x 4 x 3 x 4 x 3 x 2 = X

21 x 30 x 12 x 24 = X

630 x 12 x 24 = X

181,440 = X

Therefore, the team can assign field positions to 9 of the 19 players in 181,440 different ways.

8 0
3 years ago
If , find the values of a, b and c.<br><br>√3<br><br>2+√3​
djverab [1.8K]

Answer:

my valueeeeeeeeeeeeeeeeeeeeeeeeeee

Step-by-step explanation:

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8 0
3 years ago
Read 2 more answers
Which expression is equivalent to (8x – 20) + (-4x + 12)?
lana66690 [7]

Answer:

B. 4x-8

Step-by-step explanation:

6 0
3 years ago
Find the surface area of the regular pyramid<br> PLEASE HELP ASAP
Whitepunk [10]
Area = 1/2 base x height so you would find the area of one of the 3 larger sides which would be 12.2x6.1=74.42 then divide it by 2 which is 37.21. Then multiply it by 3 because of the other sides that are the same which gets you 111.63. Then you find the area of the bottom triangle by doing 5.3x6.1= 32.33 then divide it by 2 which is 16.165. Then you add both numbers together and you get 127.795. Answer is 127.795
6 0
2 years ago
Select the correct answer from each drop-down menu.
RSB [31]

Evidence are simply facts to support a claim, while counterexamples are instances to show the contradictions in a claim

<em>The question is incomplete, as the required drop-down menus are missing. So, I will give a general explanation</em>

<em />

To show that a statement is true, you need evidence.

Take for instance:

\mathbf{if\ a^2 = 4,\ then\ a = 2}

The evidence that the above proof is true is by taking the <em>squares of both sides of </em>\mathbf{a = 2}

\mathbf{a^2 = 2^2}

\mathbf{a^2 = 4}

However, a counterexample does not need a proof per se.

What a counterexample needs is just an instance or example, to show that:

\mathbf{if\ a^2 = 4,\ then\ a \ne 2}

An instance to prove that: \mathbf{if\ a^2 = 4,\ then\ a = 2} is false is:

\mathbf{a = -2}

Hence, the complete statement could be:

<em>In a direct proof, evidence is used to support a proof . On the other hand, a counterexample is a single example that shows that a proof is false.</em>

<em />

Read more about evidence and counterexample at:

brainly.com/question/88496

5 0
2 years ago
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