I'll try to give you brainliest if you get this right.

Answer:

4.5% ≈ 5%

Step-by-step explanation:

Given Data :

number of cards left in the deck = 12

number of spades left = 3

Patricia needs 2 spades

Calculate the probability that the two cards dealt ( without replacement ) will both be spades

1st case: ( first card is a spade )

number of cards left in the deck = 12

number of spades left = 3

P( first card dealt is spade ) = 3 / 12 = 1/4

2nd case ( second card is a spade )

number of cards left = 11

number of spades left = 2

p( second card dealt is spade ) = 2/11

Hence the probability that the two cards dealt ( without replacement ) will both be spades

= 1st case * 2nd case

= 1/4 * 2/11

= 2 / 44 =  1 / 22 =  0.045  = 4.5% ≈ 5%

Answer:

5%

Step-by-step explanation:

Got it right on the test.

Answer:

250

Step-by-step explanation:

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[tex]ab = r + d[/tex]

Divide sides b

[tex] \frac{ab}{b} = \frac{r + d}{b} \\ [/tex]

[tex]a = \frac{r + d}{b} \\ [/tex]

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Answer:

if i am hungry then i will get a snack

Step-by-step explanation:

The system of equations is Option D.

12x + 15y = 9

-12x - 18y = -6

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the first equation be A , 4x + 5y = 3

Let the second equation be B , 2x + 3y = 1

Now ,

The equations can be solved by

4x + 5y = 3   be equation (1)

2x + 3y = 1   be equation (2)

Multiply equation (1) by 3 , we get

12x + 15y = 9   be equation (3)

Multiply equation (2) by -6 , we get

-12x - 18y = -6   be equation (4)

So , the system of equations are

A , 12x + 15y = 9

B , -12x - 18y = -6

Hence , the system of equations are 12x + 15y = 9  and  - 12x - 18y = -6

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Answer:

Sorry, Don't know the answer.

Answer:

100 GROUPS OF TEN

Step-by-step explanation:

THERE IS 1000 ML IN 1L

I have an answer for you. This answer uses unclosed (white-center) holes to show "the value is not here" and closed (black-center) holes to show "the value is here." This step function is a "round up" of x+3, so it is exactly at y=3 at x=0.

Thank you for the Brainliest!

Answer:

x = 4

y = 13

Step-by-step explanation:

x + 9 = y--------(1)

x + y = 17---------(2)

(1) ----> (2),

x + 9 + x = 17

2x + 9 = 17

2x = 8

x = 4

y = 13

Answer:

335,900

Step-by-step explanation:

it should be 7 hours because the cars distance is 660

Answer:

5/12 fractions form .416 for decimal form

Step-by-step explanation:

Answer:

The x intercept is -4

And y intercept is -4/3

Answer:

0.3125

Step-by-step explanation:

From the full question in your book, the probability can be computed as:

[tex]P(X+Y=6) = P \{X=1,Y=5\} \cup \{X=2,Y=4\} \cup \{X=3,Y=3\} \cup \{X=4,Y=2\} \cup \{X=5,Y=1\}[/tex]

[tex]= P(X=1,Y=5) + P(X=2,Y=4)+P(X=3,Y=3)+P(X=4,Y=2)+P(X=5,Y=1)[/tex]

since all events are enclosed in brackets, they are mutually exclusives.

Then:

[tex]= P(X=1)P(Y=5)+P(X=2)P(Y=4)+P(X=3)P(Y=3)+P(X=4)P(Y=2)+P(X=5)P(Y=1)[/tex]

as X and Y are independent;  

= [tex](0.25\times0.25 + 0.25\times0.25 + 0.25\times0.25+0.25\times0.25 + 0.25\times0.25)[/tex]

= 0.3125

Therefore;

P(X+Y= 6) = 0.3125

Answer:

The mean and variance of X are 2.82 and 0.1692  respectively

Step-by-step explanation:

The binomial distribution is a discrete probability distribution that tells the percentage in which a result is likely to be obtained between two possibilities when performing n number of tests. In other words, a binomial distribution is a discrete probability distribution that describes the number of successes when conducting n independent experiments on a random variable.

In a binomial distribution, the mean indicates the mean value of a random phenomenon. It is calculated by:

μ=n*p

Where:

This case is a binomial distribution, where n = 3 and p = 0.94. Then:

μ=3*0.94

μ=2.82

The mean of X is 2.82.

Variance is a measure of dispersion that represents the variability of a data series with respect to its mean. It is calculated by:

Var[X]= n*p*q

Where:

Remembering that the random variable X expresses the number of successes obtained when performing "n" independent Bernouilli tests or tests with probability "p" of success and "(1-p)" of failure, then q = 1-p.

So:

Var[X]= n*p*(1-p)

In this case:

Var[X]=3*0.94*(1-0.94)

Var[X]=3*0.94*0.06

Var[X]=0.1692

The variance of X is 0.1692

Answer:

Step-by-step explanation:

In this problem we are required to provide the expression for the two scenarios highlighted

The first scenario is

"Each pound of trout costs $30, and the company charges a $2 fee for

shipping the order"

The expression for the above scenario is given as

30x + 2, 0 < x < 10

The second scenario is

"if Karen orders 10 or more pounds, the trout costs only $24 per pound, but the shipping fee is $6."

The expression for the second scenario is

24x + 6, x > 10

Answer: It's about 30 times mercury diameter and close to six thousand times it's mass

Step-by-step explanation:

Answer:

Jupiter is 5,751.51 times more massive than Mercury

Step-by-step explanation:

Just divide Jupiter's mass to Mercury.

Answer:

Nine and one third or 28/3

Have a nice day!

Answer:

The answer is 15 hours for her to reach 33 pages.

Step-by-step explanation:

2+3=5.

Then,

1 hour = 5

2 hours = 7

3 hours = 9

4 hours = 11

5 hours = 13

6 hours = 15

7 hours = 17

8 hours = 19

9 hours = 21

10 hours = 23

11 hours = 25

12 hours = 27

13 hours = 29

14 hours = 31

15 hours = 33.

the residual for points (2,5) will be 1.5.

A linear equation is an algebraic equation of the form y=mx+b, where m is the slope and b is the y-intercept, and only a constant and a first-order (linear) term are included. Sometimes, the aforementioned is referred to as a "linear equation of two variables," with y and x serving as the variables.

We have been given the best-fit line:

y = 2.5 x -1.5

We have to find residual for the point (2, 5)  

To find the residual value we will subtract the predicted value from the value which is actual.

We will find the  predicted from the given point so substitute x = 2 in the given line which is:

y= 2.5 x -1.5

y=2.5(2) -1.5

y=5 -1.5

y = 3.5

Hence, the predicted value is 3.5

And actual value is 5

Hence,

Residual = actual - predicted

Residual = 5 - 3.5 = 1.5

Hence, our required result is: 1.5

Therefore,  the residual for points (2,5) will be 1.5.

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Answer:

20

21.75

27.85

29.5

Step-by-step explanation:

Arranging the values in ascending order we get

16 21 24 24 27 28 30 35

n = Number of values = 8

Rank is given by

[tex]\dfrac{\text{Percentile}}{100}\times (n+1)[/tex]

[tex]=\dfrac{20}{100}(8+1)=1.8[/tex]

Taking the fraction of the rank i.e., 0.8 and work out the weighted mean

[tex]0.8\times (21-16)+16=20[/tex]

The 20th percentile is 20

[tex]\dfrac{25}{100}(8+1)=2.25[/tex]

[tex]0.25(24-21)+21=21.75[/tex]

The 25th percentile is 21.75

[tex]\dfrac{65}{100}(8+1)=5.85[/tex]

[tex]0.85(28-27)+27=27.85[/tex]

The 65th percentile is 27.85

[tex]\dfrac{75}{100}(8+1)=6.75[/tex]

[tex]0.75(30-28)+28=29.5[/tex]

The 75th percentile is 29.5

First one is 436: 75*5+61=436

Second one is 48x^2-12: Just substitute 4x for x. 3*16x^2-12=48x^2-12

Answer:B, x-1+x-2+x

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

Answer:

120cm

Step-by-step explanation:

The surface area of the square pyramid is 127.4 square centimeters

A three dimensional shape can be defined as a solid figure or an object or shape that has three dimensions—length, width, and height.

The given figure is a square pyramid

The formula to find surface area = a²+2a√a²/4+h²

a is the base edge length and h is the height

a is 6 cm and h is 7 cm

Surface area =  6²+2(6)√6²/4+7²

=36+12√36/4+49

=127.4 square centimeters

Hence, the surface area of the square pyramid is 127.4 square centimeters

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Answer:

(f + g)(x) = 3x + 6

Step-by-step explanation:

Brainliest?

Answer:

22

-10

-16

-21

-32

Explanation:

On a number line, negative numbers are on the left and positive numbers are on the right. So, typically, the positive numbers would be less than the negative numbers.

Hope this Helps!

Answer:

Its stupid by like todoroki =(

Step-by-step explanation:

Answer:

Bruh u already know Todoroki he reminds me of Zuko from Avatar.

Anyways have u seen The Seven Deadly Sins?