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Mama L [17]
4 years ago
11

In circle P, PQ = 3 in. What is the circumference of the circle?

Mathematics
2 answers:
lara [203]4 years ago
7 0
If PQ is the radius, the that means the circumference is 2\pir, and r = 3, so 2*(3.14)*3 = 18.8

Glad I could help.
jeyben [28]4 years ago
6 0
18p in is the answer, since PQ=3 

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A 5 kW solor energy system can collect 9000 kWh of energy per year. In Arizona, electricity cost eleven cents per kilowatt hour.
Licemer1 [7]

Answer:

19338 kWh

Step-by-step explanation:

In Arizona, electricity cost eleven cents per kilowatt-hour.

The average home uses 66 million BTU per year i.e. 66000000 BTU per year.

Now, it is given in the question that 1 BTU is equivalent to 0.000293 kWh.

So, the average home uses (66000000 × 0.000293) = 19338 kWh per year.

Therefore, the number of kilowatt-hours used per year will be 19338. (Answer)

6 0
3 years ago
Reduced form of 6/8.
drek231 [11]

Answer:

3/4

Step-by-step explanation:

7 0
2 years ago
A coin is tossed 4 times. Let E1 be the event "the first toss shows heads" and E2 the event "the second toss shows heads" and so
Elden [556K]

Answer:

The events are independent.

The probability of showing heads on both toss is equal to 1/2

Step-by-step explanation:

The sample space for this experiment consists of 2⁴= 16 sample points, as each toss can result in two outcomes we assume that the events are equally likely.

Two events are independent in the sample space if the probability of one event occurs, is not affected by whether the other event has or has not occurred.

In general the k events are defined to be mutually independent if and only if the probability of the intersection of  any 2,3,--------, k  equals the product of their respective probabilities.

P (A∩B) = P(A). P(B)

P (A∩B)   = 1/2. 1/2= 1/4

                                                                  Head          Tail

 P(E1)= 1/2  ----------          Coin 1               H,H              T,H

                                                                1/4                  1/4

  P(E2)= 1/2  ---------------  Coin 2             H, H               H,T

                                                                      1/4           1/4

So the events are independent.

The probability of showing heads on both toss is equal to 1/2

The sample space for this experiment consists of 2⁴= 16 sample points, out of which eight will have heads on both toss.

Or in other words ( 1/4* 1/4) = 2/4 = 1/2

4 0
3 years ago
The final velocity of an object moving in one dimension is given by the formula v = u + at, where u is the
kodGreya [7K]
The answer is the last one
6 0
3 years ago
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Ket [755]

Answer:

4%

Step-by-step explanation

The question is asking for the difference between 96 and 100 which is 4 because you just add 4 to 96 to get 100

6 0
3 years ago
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