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Masteriza [31]
3 years ago
12

11 NEED HELP ASAP WILL GIVE BRAINLY

Mathematics
1 answer:
fomenos3 years ago
3 0

Answer:

the second answer seems to be the most reassonable

Step-by-step explanation:

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What is the image of the photo and the preimage?
Anna [14]

Answer:

a shape with 4 sides

Step-by-step explanation:

duh

7 0
3 years ago
The area of a circle (A) is given by the formula A= pi*r to the second power, where r is the radius. The formula to find r is _.
podryga [215]

Answer:

<u>The correct option for the first blank is A. (A/pi) to the power of 1/2</u>

<u>The correct option for the second blank is A. 4.15</u>

Step-by-step explanation:

1. Let's review the information provided to us to answer the questions correctly:

Area of a circle (A) = π * r², where r = radius

2. The formula to find r is ________________:

A = π * r²

r² = A/π

√r² = √ A/π

r =  √A/π

<u>r =  A/π∧(1/2) or  (A/pi) to the power of 1/2. </u>

<u>The correct option for the first blank is A. (A/pi) to the power of 1/2</u>

3. if A = 54 centimeters squared, and pi = 22/7, r is _ centimeters.

We use the formula we got for the first blank, this way:

r =  (A/pi) to the power of 1/2

Replacing with the real values, we have:

r = (54/(22/7)) to the power of 1/2

r = 17.2 to the power of 1/2

r = √17.2 = 4.15 (Rounding to the next hundredth)

<u>The correct option for the second blank is A. 4.15</u>

3 0
3 years ago
A total of 2480 students voted in the Student Government elections. This was 32% of the students enrolled. How many students wer
jolli1 [7]
7750 students 
hope this helps :):):)

8 0
3 years ago
60 is what percentage of 400
Neporo4naja [7]

Answer:

15%

Step-by-step explanation:

60/400 × 100%

= 6.000/400

= 15%

Make as the brainliest

3 0
3 years ago
g Consider the experiment of a single roll of an honest die and a single toss of 3 fair coins. Let X be the value on the die and
klemol [59]

Answer:

The probability function of X and Y is

P(X = k, Y = 0)  = 1/48\\P(X = k, Y = 1) = 1/16\\P(X = k, Y = 2) = 1/16\\P(X = k, Y = 3) = 1/48

With k in {1,2,3,4,5,6}

Step-by-step explanation:

We can naturally assume that X and Y are independent. Because of that, P(X=a, Y=b) = P(X=a) * P(Y=b) for any a, b.

Note that, since the die is honest, then P(X=k) = 1/6 for any k in {1,2,3,4,5,6}. We can conclude as a consequence that P(X=k, Y=l) = P(Y=l)/6 for any k in {1,2,3,4,5,6}.

Y has a binomial distribution, with parameters n = 3, p = 1/2. Y has range {0,1,2,3}. Lets compute the probability mass function of Y:

P_Y(0) = {3 \choose 0} * 0.5^3 = 1/8

P_Y(1) = {3 \choose 1} * 0.5* 0.5^2 = 3/8

P_Y(2) = {3 \choose 2} * 0.5^2*0.5 = 3/8

P_Y(3) = {3 \choose 3} * 0.5^3 = 1/8

Thus, we can conclude that the joint probability function is given by the following formula

P(X = k, Y = 0) = 1/8 * 1/6 = 1/48\\P(X = k, Y = 1) = 3/8 * 1/6 = 1/16\\P(X = k, Y = 2) = 3/8 * 1/6 = 1/16\\P(X = k, Y = 3) = 1/8 * 1/6 = 1/48

For any k in {0,1,2,3,4,5,6}

4 0
3 years ago
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