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2 years ago

11

suppose that the probability of parents having a child with blond hair is 1/4.if there are 6 children in the family, what is the

probability that half o them will have blond hair?

1 answer:

Ahat [919]2 years ago

8 0

Answer:

1.5 is the probablity

1/4×6

=1.5

hope it helps you

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3. Find the midpoint between the following points. (-2,-5) and (-3,1)

Vadim26 [7]

Answer:

Step-by-step explanation:

(x₁, y₁) = (-2 , -5) & (x₂ , y₂) = (-3 , 1)

Midpoint = $(\frac{x_{1}+x_{2}}{2},\frac{y_{1}+y_{2}}{2})$

$=(\frac{-2 + [-3]}{2} ,\frac{-5 + 1}{2})\\\\\\=(\frac{-5}{2} , \frac{-4}{2})\\\\=(-2.5, -2)$

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3 years ago

Use the given value to find the value of the other variable that is not provided.

Sedaia [141]

Answer:

Step-by-step explanation:

4(0) + 3y=12

4x0=0

0+3y=12

3 x 4=12

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3 years ago

What is the period of the graph of the equation y=3cos2x

Molodets [167]

$the\ period\ cosx\ is\ 2\pi\\\\the\ period\ 3cosx\ is\ 2\pi\\\\the\ period\ 3cos2x\ is\ 2\pi:2=\pi\leftarrow Answer$

6 0

3 years ago

Of the 34 cars in a parking lot, 20 are green, 8 are gold, and the rest are black. What are

zlopas [31]

Answer:c

Step-by-step explanation:

5 0

3 years ago

HELP!! I NEED THIS QUICKLY

Elza [17]

Answer:

A and D

Step-by-step explanation:

We are given that

(3/4,2/3),(1/4,1),(1,1/2) and (1/2,1)

$x_1=\frac{3}{4}$

$y_1=\frac{2}{3}$

$x_2=\frac{1}{4},y_2=1$

$x_3=1,y_3=\frac{1}{2}$

$x_4=\frac{1}{2},y_4=1$

k= $\frac{1}{2}$

Direct proportion:

$\frac{x}{y}=k$

Inverse proportion: $xy=k$

$\frac{x_1}{y_1}=\frac{3}{4}\times \frac{3}{2}=\frac{9}{8}\neq \frac{1}{2}$

Therefore, it is not in direct proportion.

$\frac{1}{4\times 2}=\frac{1}{8}\neq\frac{1}{2}$

$\frac{1}{\frac{1}{2}}=2\neq \frac{1}{2}$

$x_1y_1=\frac{3}{4}\times \frac{2}{3}=\frac{1}{2}$

$x_2y_2=\frac{1}{4}\times 2=\frac{1}{2}$

$x_3y_3=1\times \frac{1}{2}=\frac{1}{2}$

$x_4y_4=\frac{1}{2}\times 1=\frac{1}{2}$

Therefore, $xy=k=\frac{1}{2}$

Hence, the given points form an inverse variation .

$xy=\frac{1}{2}$

$y=\frac{1}{2x}$

Option A and D is true.

6 0

2 years ago