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2 years ago

Which of the following are not polyhedrons?

Mathematics

1 answer:

Goshia [24]2 years ago

6 0

Answer:C and D

Step-by-step explanation: Hope this helps

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To the nearest square centimeter, what is the area of the circle below? Use pi = 3.14

Mademuasel [1]

Answer:

$radius \: \: r = 5 \: cm \\ area = \pi {r}^{2} \\ = 3.14 \times (5) {}^{2} \\ = 78.5 \: {cm}^{2}$

8 0

3 years ago

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Population Growth The population of a town of 5000

Nesterboy [21]

Answer:

a) $A=5000{(1.03)}^{t}$

b) 5464 inhabitants.

Step-by-step explanation:

The formula used for compound interest becomes very helpful in this case.

$A=P{(1+r)}^{t}\\\\When:\\A = Final Value\\P = Initial Value\\r = Rate of Change (Decimal)\\t = Time (Years)$

Knowing this, we can easily calculate the value for any year, counting from the original 5000.

From this formula, we can derive a specific one that will serve for any value of <em>t</em>.

$A=5000{(1+0.03)}^{t}\\A=5000{(1.03)}^{t}$

b) Apply the formula:

$A=5000{(1.03)}^{3}\\A=5000(1.092727)\\A=5463.635=5464$

The town will have 5464 inhabitants.

5 0

4 years ago

Lungimea unei gradini de 78 m iar perimetrul este de 256 m.Afla latimea gradinii

Yuri [45]

Trebuie sa postezi la pagina care e in romineste
L= 78 si P=256
P=2L+2W w e width(latime)
256=2*78+2w
256=156+2w
256-156=2 w
100=2w
w=50

8 0

4 years ago

Read 2 more answers

Volume of cylinder. Use 3.14 as pi.

leonid [27]

Answer: the exact volume is 1,357.168

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

I JUST NEED 4 PLS!!!!!!

Alchen [17]

Answer:

Step-by-step explanation:

When doing 4 divided by 2 you get 2. Looking at the sign it is saying 3 is greater than the number we solve for. Since we solved and got 2 we can double check and ask is 3 greater than 2? Yes it is so that would make the statement correct.

Hope this Helps :)

6 0

3 years ago