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FinnZ [79.3K]
3 years ago
5

Find the area of each semicircle. Round to the nearest tenth. Use 3.14 for Pi.

Mathematics
1 answer:
pentagon [3]3 years ago
4 0

Answer:

1. 69.4 / 2 = 34.7

2. 38.5 / 2 = 19.25

3. 201.1 / 2 = 100.55

I got these by caculating the area and dividing it by 2

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onsider two populations for which μ1 = 38, σ1 = 2, μ2 = 23, and σ2 = 4. Suppose that two independent random samples of sizes n1
levacccp [35]

Answer:

Center = 15

Spread = 0.599

Shape = Normal

Step-by-step explanation:

The provided information is:

\mu_1=38 \ \ \ \ \ \ \ \ \mu_2 = 23\\\sigma_1 =2 \ \ \ \ \ \ \ \ \ \sigma_2=4\\n_1=45 \ \ \ \ \ \ \ \ n_2 =59

Thus the center(mean) of the distribution is:

\begin{aligned}Mean &= \mu_1-\mu_2\\&=38-23\\&=15\end{aligned}

The spread (standard deviation) of the distribution is:

\begin{aligned}\textrm{Standard deviation}&=\sqrt{\frac{\sigma_1^2}{n_1}+\frac{\sigma_2^2}{n_2}}\\&=\sqrt{\frac{4}{45}+\frac{16}{59}}\\&=0.599\end{aligned}

The shape of the distribution is also normally distributed.

3 0
3 years ago
Find the least common denominator (LCD) of<br> 3<br> 7<br> and<br> 5<br> 8
Alenkinab [10]

Answer:

56

Step-by-step explanation:

7 is a prime number

7*8 = 56

The least common denominator is 56

3/7 * 8/8 = 24/56

5/8*7/7 = 35/56

7 0
3 years ago
Read 2 more answers
Can someone answer this &lt;3
lara [203]
The degree is equal to 6!
4 0
3 years ago
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If a(x) = 3x + 1 and b (x) = square root of x-4, what is the domain of (b o a)(x)
Monica [59]

( 1, ∞)  is the domain of (b o a)(x)

<h3>What is Function?</h3>

A function is defined as a relation between a set of inputs having one output each.

According to the question,

a(x) = 3x + 1 \\\\b (x) =\sqrt{x+4}

To find the domain of the composite function,

(b o x) (x) = b(a(x))\\\\(b o x) (x) = b(a(3x-1))\\\\(b o x) (x) = \sqrt{3x+ 1 -4} \\\\(b o x) (x) = \sqrt{3x -3}\\\\

Therefore,

3x - 3 \geq 0\\3x \geq 3\\x \geq 1\\\\

Hence , [ 1, ∞ ] is is the domain of (b o a)(x).

learn more about function here:brainly.com/question/12431044

#SPJ1

8 0
2 years ago
In the graph below, A represents Ashley's house, B represents Bridget's house, and C represents Carly's house. Whos house does A
yawa3891 [41]

Answer:

Ashley's house is 12.1 miles away from Bridgette's house
Ashley's house is 10.2 miles away from Carly's house

Ashley's house is closer to Carly's house by 1.9 miles

Explanation:

Use the distance formula to calculate the distance between points

4 0
3 years ago
Read 2 more answers
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