Two balls are drawn in succession out of a box containing 6 red and 6 white balls. find the probability that the second ball was​ red, given that the first ball​ was:

The quadratic function with vertex (0, 0) and passing through the point (-2, 2) is y = 0.5x^2. This is a transformation of the parent quadratic function y = x^2 with a vertical stretch by a factor of 0.5.

The quadratic function with the given vertex (0, 0) and going through the point (-2, 2) can be written in the form of the vertex form of a quadratic function i.e. y = a(x - h)² + k, where (h, k) is the vertex of the parabola. Since the vertex given is (0,0), the function becomes y = ax².

Now, to find the value of 'a', we can substitute the x and y coordinates of the given point (-2,2) into the equation. So, 2 = a(-2)², this simplifies to 2 = 4a. Solving for 'a', we get a = 0.5. So, the function is y = 0.5x².

This function is a transformation of the parent function y=x². The 0.5 in front of x² means that the graph of the function stretches vertically by a factor of 0.5. Thus, the parabola opens upwards and is narrower than the parent function.

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Answer:0.1587

Step-by-step explanation:

z = (x-μ)/σ

mean, μ= 15.2

standard deviation, σ = 0.9

To find the probability that x is greater than 16.1,

x = 16.1

z = (16.1-15.2)/0.9

= 1

Looking at the normal distribution table, the area covered by 0 to 1

=0.8413

Therefore, the probability that x is greater than 16.1, = 11- probability that x = 16.1

= 1-0.8413

= 0.1587

Options: A

Key: 1|5 means 15

Options: B

Key: 1|5 means 15

Options: C

Key: 1|5 means 15

Options: D

Key: 1|5 means 15

Answer:

Options: D

Key: 1|5 means 15

Step-by-step explanation:

Given: 15, 16, 15, 48, 48, 63, 15, 29, 16, 30, 48

To plot a stem and leaf plot, first rearrange the observations in ascending order: 15, 15, 15, 16, 16, 29, 30, 48, 48, 48 , 63

Next, is to get the range of values

Low: 15

High = 63

Next, is to identify the stems

Using the range of 15 to 63, we need stems of 1, 2, 3, 4, 5 and 6

In tabular form, the stems are:

Stems ||

1  ||

2  ||

3  ||

4  ||

5  ||

6 ||

Next, is to fill in the leafs

Stem || Leaf

1 || 5 5 5 6 6

2 || 9

3 || 0

4 || 8 8 8

5 ||

6 || 3

Lastly, we write out our observations

1. The stem Value 1 has leaf values 5,5,5,6,6

2. The stem Value 2 has a leaf value 9

3. The stem Value 3 has a leaf value 0

4. The stem Value 4 has leaf Values 8,8,8

5. The stem Value 5 has no leaf

6. The stem Value 6 has leaf value 3

Comparing the observation with the options, option D represents the stem-and-leaf plot representation of 15, 16, 15, 48, 48, 63, 15, 29, 16, 30, 48  

Answer:

$806

Step-by-step explanation:

The regular earning of a cashier = $10.20 per hour

over 35 hours per week he gets = $10.20 + $1.30 per hour

                                                      = $11.50 per hour

He worked 40 hours in first week and 38 hours the second week.

His earnings in first week  = (35 × 10.20) + (5 × 11.50)

                                           = $357 + $57.5

                                           = $414.50

His earnings in second week = (35 × 10.20) + (3 × 11.50)

                                                 = $357 + $34.50

                                                 = $391.50

His total earnings in this two weeks = $391.50 + $414.50

                                                            = $806

His total earning was $806.

This question is nasty. It sounds like you should be finding area of the figure you see. I'll do that first, although I don't think it's the right answer. (But it might be).

Area Trapezoid = (b1 + b2) * h / 2

b1 = 8

b2 = 12

h = 5

Area Trapezoid = (8 + 12 ) * 5 / 2

Area Trapezoid = 20 * 5/2

Area = 50 square feet.

The problem is that no lumber yard will cut that for you without charging you. The practical answer is 12 * 5  = 60 square feet is what you will have to buy. Then you cut out the triangles for yourself.

The student's question asked for finding the percentage increase in an item's price. This can be calculated by subtracting the initial price from the final price, dividing that difference by the initial price, and then multiplying the result by 100. In this case, the price of the item has increased by 140% from yesterday to today.

To find the percentage increase of the price of an item, we subtract the initial price from the final price, then divide that number by the initial price, finally multiply that result by 100 to obtain the percentage. In this case, the initial price of the item was $115, and the final price is $276.

Here's how the calculation works:

Therefore, the price of the item has increased by 140% from yesterday to today.

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The neighbor needs to buy approximately 89.6 feet of fencing to surround her 500 square feet garden, which is a square. This is calculated by taking the square root of the area to find the length of one side and then multiplying by four to get the perimeter.

To determine how much fence the neighbor needs to buy to surround her square garden, we need to calculate the perimeter of the square. The area of a square is given by the formula Area = side × side or Area = side². Since the area is 500 square feet, we first find the length of one side of the square by taking the square root of the area:

Side = √Area = √500 ft²

The square root of 500 is approximately 22.4 feet. Now, we calculate the perimeter, which is the sum of all four sides of the square:

Perimeter = 4 × side = 4 × 22.4 ft = 89.6 ft

Rounded to the nearest tenth of a foot, the neighbor needs to buy approximately 89.6 feet of fencing to surround her garden.

The answer to this item is 23/32.

Probability is a measure of the likelihood of an event to occur. Many events cannot be predicted with total certainty.

Given that the events are not mutually exclusive the union of the probability of the events is calculated through the equation,

P(Q or R) = P(Q) + P(R) - P(Q and R)

Substituting the known values,

P(Q or R) = 3/5 + 1/3 - 1/5

Simplifying,

P(Q or R) = 11/15

Hence the answer to this item is 23/32.

Learn more about probability click;

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ANSWER

Component form:

[tex]\binom{ - 16}{2} [/tex]

2. Magnitude

[tex]2\sqrt{65} [/tex]

EXPLANATION

Given that P = (-5, 5) and Q = (-13, 6),

Vector PQ

[tex] = \binom{ - 13}{6} - \binom{ - 5}{5} [/tex]

[tex] = \binom{ - 13 + 5}{6 - 5} [/tex]

[tex] = \binom{ - 8}{1} [/tex]

2 vector PQ

[tex] = 2 \binom{ - 8}{1} [/tex]

[tex] = \binom{ - 16}{2} [/tex]

This is the component form.

The magnitude is given by

[tex] = \sqrt{ {x}^{2} + {y}^{2} } [/tex]

[tex] = \sqrt{ {( - 16)}^{2} + {2}^{2} } [/tex]

[tex] = \sqrt{256 + 4} [/tex]

[tex] = \sqrt{260} [/tex]

[tex] = 2\sqrt{65} [/tex]

the answer is 8 and 16

The Greatest Common Divisor (GCD) of 100 and 254 can be found using Prime Factorization and the Euclidean Algorithm. Both methods produce a GCD of 2.

The student is asking for how to find the Greatest Common Divisor (GCD) of 100 and 254 using two different methods: Prime Factorization and the Euclidean Algorithm.

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Answer:

d

Step-by-step explanation: