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Tanya [424]
3 years ago
11

1. The measure of PQR is 75°. The length of radius QR is 7 inches. What is the area of sector PQR? (Use 3.14 for .)

Mathematics
1 answer:
g100num [7]3 years ago
3 0
I think the answer is D

Hope it helps
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Simplify 4(b-6)+19 ?
Digiron [165]

Answer:

4b -5

Step-by-step explanation:

Perform the indicated multiplication first:  4b - 24 + 19.  Next, combine like terms, obtaining 4b -5 (answer)

4 0
3 years ago
5x +14+13x-2 i need help on these type of problems please
OleMash [197]

Answer:

18x+12

Step-by-step explanation:

5x+14+13x-2

combine Like terms:

5x+13x

14-2

18x+12

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3 years ago
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Whitney's balcony is 3 feet wide and 6 feet long. Whitney paid $4.00 per square foot to have the balcony stained. How much did s
stepan [7]

Answer:

She paid 72 dollars

Step-by-step explanation:


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3 years ago
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Given a sample size n, how will the distribution of the sample mean behave?
Keith_Richards [23]
Answer:
Provided that the sample size, n, is sufficiently large (greater than 30), the distribution of sample means selected from a population will have a normal distribution, according to the Central Limit Theorem.

Explanation:
1. As n increases, the sample mean approaches the population mean
   (The Law of Large numbers)
2. The standard error of the sample is
     σ/√n
     where σ = population standard deviation.
     As n increases, the standard error decreases, which means that the error    
     between the sample and population means decreases.

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