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Radda [10]
3 years ago
15

There are 5 boys and 3 girls running for school president and vice president. What is the probability that the president is a gi

rl and the vice-president is a girl?
Mathematics
1 answer:
frozen [14]3 years ago
7 0

Answer: The required probability is \dfrac{3}{14}

Step-by-step explanation:

Since we have given that

Number of boys = 5

Number of girls = 3

Total number = 8

President and vice president should be girl.

So, the probability of getting a girl president and girl vice president would be :

\dfrac{^3C_1\times ^2C_1}{^8C_2}\\\\=\dfrac{3\times 2}{28}\\\\=\dfrac{3}{14}

Hence, the required probability is \dfrac{3}{14}

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svlad2 [7]

Answer:

thanks for the point

6 0
3 years ago
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Find the product of (x 5)(x − 5). X2 − 10x 25 x2 10x 25 x2 − 25 x2 25.
den301095 [7]

Product of two polynomials can be done by distribution of multiplication over addition. The product of (x+5)(x-5) = x^2 - 25

<h3>What is distributive property of multiplication over addition?</h3>

Suppose a, b and c are three numbers. Then we have:

a(b + c) = a\times b + a\times c

(a(b+c) means a multiplied to (b+c). The sign of multiplication is usually hidden when using symbols and both quantities which are in multiplication are written together without space)

The product result of the given expression is obtained as:

(x+5)(x-5) = x(x - 5) + 5(x - 5) \\\\(x+5)(x-5) = x^{1+1} - 5x + 5x - 25 = x^2 - 25

Thus,

The product of (x+5)(x-5) = x^2 - 25

Learn more about polynomial product here;

brainly.com/question/9106484

4 0
2 years ago
Plz explain and I'll give brainly!!!
miss Akunina [59]

Answer:

(2,21)

Step-by-step explanation:

y = 10.5x

plug 2 for x  in the equation

y = 10.5(2)

then multiply 2 by 10.5

y=21

7 0
3 years ago
According to a recent? study, 8.6?% of high school dropouts are? 16- to? 17-year-olds. In? addition, 5.7?% of high school dropou
Natalija [7]

Answer:

0.6628 or 66.28%

Step-by-step explanation:

The probability that a randomly selected dropout is white, given that he or she is 16 to 17 years old is determined by the probability of them being a white 16 to 17 years old dropout (5.7%), divided by the probability of them being a 16 to 17 years old dropout of any ethnicity (8.6%):

P(W|16\ to\ 17)=\frac{P(W\ and\ 16\ to\ 17)}{P(16\ to\ 17)} =\frac{0.057}{0.086}\\P(W|16\ to\ 17)=0.6628=66.28\%

There is a 0.6628 or 66.28% chance that a randomly selected dropout is white, given that he or she is 16 to 17 years old.

8 0
3 years ago
Read 2 more answers
Find the area of the composite shape
8090 [49]

Step-by-step explanation:

Radius = 4 ft

Side of the square = 8 ft

Area of circle = πr² ≈ 3 × 4² = 48 ft²

Square area = a² = 8² = 64 ft²

area of composite shape = Square area - Area if circle = 64 - 48 = 16 ft²

4 0
3 years ago
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