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4 years ago

9

Select one card from two cards, one colored red, one colored blue. replace the card and repeat the experiment. what is the proba

bility of selecting a blue card each time?

1 answer:

elena55 [62]4 years ago

4 0

The probability of picking the blue card is 1/2 each time.

The probability of picking it BOTH times is

(1/2)•(1/2) = 1/4. (25%)

You might be interested in

( 3x/2)^4 a. 12x^4/8 b. 6x^4 c.81x^4 d.81x^4/16

Dima020 [189]

$\left(\dfrac{3x}{2}\right)^4=\dfrac{(3x)^4}{2^4}=\boxed{\dfrac{3^4x^4}{16}=\dfrac{81x^4}{16}}\to\boxed{d.}$

5 0

3 years ago

The point 5 5/8, 2 1/4 lies on a line that represents proportional relationship. Part A Write an equation for this relationship.

andrew11 [14]

Answer:

The we equation is

$y = \frac{2}{5}x$

The constant of proportionality is

$k = \frac{2}{5}$

Step-by-step explanation:

The given point is

$(5 \frac{5}{8} ,2 \frac{1}{4} )$

A proportional relationship has a general equation of the form:

$y = kx$

We substitute the point into the equation to get:

$2 \frac{1}{4} = 5 \frac{5}{8}k$

Change to improper fractions to get:

$\frac{9}{4} = \frac{45}{8}k$

We multiply through by

$\frac{8}{45}$

This gives us:

$\frac{8}{45} \times \frac{9}{4} = k$

$k = \frac{2}{5}$

The equation is

$y = \frac{2}{5}x$

3 0

4 years ago

Please answer this and I’ll make you Brainly

murzikaleks [220]

Answer:

-4 = ?

Step-by-step explanation:

<u>Step 1: Substitute -1 for x</u>

7x^3 + 5x^2 - 2 = ?

7(-1)^3 + 5(-1)^2 - 2 = ?

7(-1) + 5(1) - 2 = ?

-7 + 5 - 2 = ?

-4 = ?

Answer: -4 = ?

3 0

3 years ago

Can someone please help me??? And please be sure of ur answer :)

Rina8888 [55]

Answer:

1. is the last one.

2. is the 3rd one.

3. is the first one.

4. is the 2nd one.

Step-by-step explanation:

What you do is you have to get the letter by itself and it all depends on the less than or greater than signs.

For #1. -m+8>6. What you do is you minus 8 from both sides to get -m>-2. You still have a -m so you need to divide both sides by a -1. (<em><u>one thing to remember is when you divide by a negative you have to switch the sign.</u></em>) So your answer will be m<2. That will make the last graph the answer.

For #2. -2p< or equal to -10. What you do is divide by -2. and you need to remember to switch the sign. So your answer is p> or equal to 5.

You will do the same for the other two equations but your answers are.

#1. is the last one graph.

#2. is the 3rd one graph.

#3. is the first one graph.

#4. is the 2nd one graph.

3 0

4 years ago

Let {an} be a sequence that satisfies the recurrence relation an = an-1 + 3 for n = 1, 2, 3, ... , and suppose that a0 = 2. What

Arturiano [62]

Given:

$a_n=a_{n-1}+3$

$a_0=2$

To find:

The values $a_1,a_2,a_3$ .

Solution:

We have,

$a_n=a_{n-1}+3$

For $n=1$ ,

$a_1=a_{1-1}+3$

$a_1=a_{0}+3$

$a_1=2+3$

$a_1=5$

For $n=2$ ,

$a_2=a_{2-1}+3$

$a_2=a_{1}+3$

$a_2=5+3$

$a_2=8$

For $n=3$ ,

$a_3=a_{3-1}+3$

$a_3=a_{2}+3$

$a_3=8+3$

$a_3=11$

Therefore, $a_1=5,a_2=8,a_3=11$ .

3 0

3 years ago