Please help! Correct answer only!

In a carnival game, there is a machine that will shuffle a deck of 50 cards numbered from 1 to 50 and then spit one card out. If the number on the card is odd, you win $15. If the number on the card is even, you win nothing. If you play the game, what is the expected payoff?

$___

Answer

At the current rate, 2420 pounds will be the weight bench pressed after 2 months.

Explanation

A given quantity that increases by a constant rate monthly can have its current value calculated according to the formula,

A = A₀ (1 + r)ᵗ

A = Value after a given time t (in months)

A₀ = Initial value = 200 pounds

r = rate of increase = 10% monthly = 0.10

t = time = 2 months

A = A₀ (1 + r)ᵗ

A = 2000 (1 + 0.1)²

A = 2000 (1.1)²

A = 2000 (1.21)

A = 2,420 pounds

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Answer: Fritz Perk

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The value of x from given quadrilateral ABCD is 27°.

In the given quadrilateral ABCD, ∠A=3x+5, ∠B=2x+15, ∠C=4x and ∠D=4x-10.

We know that, the sum of interior angles of quadrilateral is 360°.

Here, ∠A+∠B+∠C+∠D=360°

3x+5+2x+15+4x+4x-10=360°

13x+10=360°

13x=350°

x=350/13

x=26.9

x≈27°

Therefore, the value of x from given quadrilateral ABCD is 27°.

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Answer:

the answer is 5 :)

Step-by-step explanation:

B^2-6b+9 b=2

2^2-6(2)+9

8-6(2)+9

8-12+9

-4 + 9

=5

Answer:

1.07

Step-by-step explanation:

0.6 + 0.47= 1.07

At least 88.9% of the quiz scores in a beginning statistics class will reside within the range of 6.3 to 8.7, without rounding.

SOLUTION:

By using Chebyshev's Therem.

Chebyshev's Theorem states that for any dataset, the proportion of data within k standard deviations from the mean is at least (1 - 1/k^2).

Step 1:

Calculate the value of k.
Since we want at least 88.9% of the data within the range,

we can set up the equation as follows:

(1 - 1/k^2) ≥ 0.889

Solving for k:
1 - 0.889 = 1/k^2
0.111 = 1/k^2
k^2 = 1/0.111
k ≈ 3

Step 2:

Calculate the range using the value of k, mean, and standard deviation.
Lower Bound = Mean - k * Standard Deviation
Upper Bound = Mean + k * Standard Deviation

Lower Bound = 7.5 - (3 * 0.4) = 7.5 - 1.2 = 6.3
Upper Bound = 7.5 + (3 * 0.4) = 7.5 + 1.2 = 8.7

Using Chebyshev's Theorem, at least 88.9% of the quiz scores in a beginning statistics class will reside within the range of 6.3 to 8.7, without rounding.

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The area of the region enclosed by the curves 10x=2y²+12y+19 and x=-4y-10 is 174/3 units².

To find the area of the region enclosed by the curves 10x=2y²+12y+19 and x=-4y-10, we need to solve this problem in the following way:

Since the curves are already in the form of x = f(y), we need to use vertical strips to find the area.

So, the integral for the area of the region is given by:

A = ∫a b [x₂(y) - x₁(y)] dy

Here, x₂(y) = 10 - 2y² - 12y - 19/5 = - 2y² - 12y + 1/2 and x₁(y) = -4y - 10

So,

A = ∫(-3)⁻²[(-2y² - 12y + 1/2) - (-4y - 10)] dy + ∫(-2)⁻²[(-2y² - 12y + 1/2) - (-4y - 10)] dy

=> A = ∫(-3)⁻²[2y² + 8y - 19/2] dy + ∫(-2)⁻²[2y² + 8y - 19/2] dy

=> A = [(2/3)y³ + 4y² - (19/2)y]₋³ - [(2/3)y³ + 4y² - (19/2)y]₋² | from y = -3 to -2

=> A = [(2/3)(-2)³ + 4(-2)² - (19/2)(-2)] - [(2/3)(-3)³ + 4(-3)² - (19/2)(-3)]

=> A = 174/3

Hence, the area of the region enclosed by the curves is 174/3 units².

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Answer:

x = 0

y= -3

Step-by-step explanation:

x = y + 3 into the equation y = -4x - 3, so

y = -4(y+3) - 3

y = -4y - 12 - 3

y = -4y - 15

5y = -15

y = -3

Then, you can substitute this into the equation x = y + 3

\(x = -3 + 3\\x = 0\)

Because the transformations don't change the size, we can see that B'C' = 24 units.

Here we know that we have a triangle ABC, and we apply some transformations to it.

First, the original side BC has a length of 24 units, then we apply a reflection and a translation to get the triangle A'B'C'.

Notice that we didn't use a dilation/contraction, then the dimensions do not change.

This means taht the length of BC and B'C' must the same ones, then we can conclude that B'C' = 24 units.

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Answer:  38 feet

Step-by-step explanation:

Based on the dimensions of the garden, we can infer that it a rectangular garden because one side is longer than the other.

The perimeter of a rectangle is calculated as:

= (2 * length) + (2 * width)

= (2 * 15) + (2 * 4)

= 30 + 8

= 38 feet

No, we cannot measure 3 gallons of water using 2 jugs of size 100 and 98 gallons. But, we can measure 4 gallons of water using these jugs.

Let's call the two jugs A and B, with A being the 100-gallon jug and B being the 98-gallon jug.

To measure 3 gallons of water, we need to have one jug that is smaller than 3 gallons and another jug that is larger than 3 gallons.

However, both of these jugs are larger than 3 gallons.

This means that it is impossible to measure 3 gallons of water using these jugs.

To measure 4 gallons of water, we can follow these steps:

Fill jug A to the top with water.

Pour the water from jug A into jug B until jug B is full.

This will leave 2 gallons of water in jug A.

Pour the water from jug B down the drain, then pour the 2 gallons from jug A into jug B.

Fill jug A to the top with water.

Pour the water from jug A into jug B until jug B is full.

This will leave 96 gallons of water in jug B, with 4 gallons of water in jug A.

Thus, we can measure 4 gallons of water using these jugs.

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Answer:

6 times

Step-by-step explanation:

If there are total of 6 marbles and 3 are pink, then you will have a one half (or 50%) chance of picking a pink marble. Because you put the marble back each time, your chance of picking a pink marble remains the same every time.

So one half of 12 is 6. You are predicted to pick a pink marble 6/12 times.

=======================================================

Explanation:

The angles (2x+24) and x are same side interior angles. Same side interior angles are supplementary when we have parallel lines.

(2x+24) + (x) = 180

2x+24+x = 180

3x+24 = 180

3x = 180-24

3x = 156

x = 156/3

x = 52

Answer:

x = 1

Step-by-step explanation:

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There are 120 different 4-letter words that can be formed from the word "image" using permutations without repetition.

To find the number of 4-letter words that can be formed from the word "image" using permutations without repetition, we can consider the number of choices for each position in the word.

The word "image" has 5 letters: 'i', 'm', 'a', 'g', and 'e'. We need to choose 4 letters to form a 4-letter word. Since repetitions are not allowed, each letter can only be used once.

For the first position in the word, we have 5 choices (any of the 5 letters in "image" can be used).

For the second position, we have 4 choices left (one letter has already been used).

For the third position, we have 3 choices left.

For the fourth position, we have 2 choices left.

Using the multiplication principle, the total number of 4-letter words that can be formed is given by:

5 choices for the first position × 4 choices for the second position × 3 choices for the third position × 2 choices for the fourth position.

This can be expressed as 5! / (5 - 4)! since we are selecting 4 letters out of 5 without repetition.

Simplifying, we have:

5! / (5 - 4)! = 5! / 1! = 5 × 4 × 3 × 2 = 120.

Therefore, there are 120 different 4-letter words that can be formed from the word "image" using permutations without repetition.

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Answer:

1 x 10^2

Step-by-step explanation:

(2 x 10^5) / (2 x 10^3) = 1 x 10^2

Answer:

The probability of a person getting their own hat is 1/5 or 20%.

Step-by-step explanation:

If each person has one hat the chances (the probability) of them getting their own hat would be 20%. The chances (the probability) of them getting a hat that belongs to one of the other four students would be 80%. Due to there being 5 hats each person owns 1 hat so there would be a 1 out of 5 chance of them getting their own hat.

The sinusiodal function created from 2 given points is y = 3 sin (πx + 90) + 3

From the case, we have:

Minimum point = (-3,0)

Maximum point = (-9,6)

The sinusoidal fuction would be in the form of:

y = A sin (Bx - C) + D

where:

A = amplitudo

B = 2π / Period

C = Phase shift

D = Midline

First, we need to find the amplitudo:

A = (Y max - Y min) / 2

A = (6 - 0) / 2

A = 3

Periode = (X max - X min) x 2

Periode = (-9 - (-3) x 2

Periode = -6

B = 2π / Periode

B = 2π / 6

B = 1/3 π

D = (Y max + Y min) / 2

D = (6 + 0) / 2

D = 3

We can use one point to find the value of C:

0 = 3 sin (π/3 (-3) - C) + 3

0 = 3 sin (π - C) + 3

-3 = 3 sin (π - C)

sin (π - C) = -1

(π - C) = 270

C = -1/2 π

C = - 90

Then the sinusiodal function would be:

y = 3 sin (πx + 90) + 3

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Using the P-value method of testing hypotheses with a significance level of 0.05, the sample provides strong evidence to support the claim that the mean score of job applicants from the university is greater than 160.

To test the claim that the mean score of job applicants from the university is greater than 160, we will perform a one-sample t-test using the P-value method. The null hypothesis (H0) assumes that the mean score is equal to 160, while the alternative hypothesis (Ha) assumes that the mean score is greater than 160.

First, we calculate the test statistic, which is the t-value. The formula for the t-value is:

t = (sample mean - hypothesized mean) / (sample standard deviation / sqrt(sample size))

Plugging in the given values, we have:

t = (183 - 160) / (12 /   √(25))

  = 23 / (12 / 5)

  = 23 * (5 / 12)

  ≈ 9.58

Next, we find the P-value associated with the test statistic. The P-value represents the probability of obtaining a test statistic as extreme as the observed value, assuming the null hypothesis is true. Since the alternative hypothesis is one-sided (greater than 160), we calculate the P-value by finding the probability of the t-distribution with 24 degrees of freedom being greater than the calculated t-value.

Consulting statistical tables or using software, we find that the P-value is very small (less than 0.0001).

Since the P-value (less than 0.0001) is less than the significance level (0.05), we reject the null hypothesis. This provides strong evidence to support the claim that the mean score of job applicants from the university is greater than 160.

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The Cholesky decomposition of the identity matrix is simply the identity matrix itself

The Cholesky decomposition of the identity matrix is simply the identity matrix itself. To see why this is the case, recall that the Cholesky decomposition of a matrix A is a lower-triangular matrix L such that

A = LL^T.

When A is the identity matrix I, we have I = LL^T.

Since L is lower-triangular, its transpose L^T is upper-triangular. Therefore, the only way for LL^T to be the identity matrix I is for L to also be the identity matrix I.

In summary, the Cholesky decomposition of the identity matrix I is I itself.

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Using the z-distribution, as we are working with a proportion, it is found that the 83% confidence interval is (0.5789, 0.7611).

A confidence interval of proportions is given by:

\(\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}\)

In which:

In this problem, we have an 83% confidence level, hence\(\alpha = 0.93\), z is the value of Z that has a p-value of \(\frac{1+0.83}{2} = 0.915\), so the critical value is z = 1.37.

The other parameters are \(n = 50, \pi = 0.67\).

Then, the bounds of the interval are given as follows:

\(\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.67 - 1.37\sqrt{\frac{0.67(0.33)}{50}} = 0.5789\)

\(\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.67 + 1.37\sqrt{\frac{0.67(0.33)}{50}} = 0.7611\)

The 83% confidence interval is (0.5789, 0.7611).

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Answer:

CI = (57.89%, 76.14%)

Step-by-step explanation:

First, solve for the 83% critical z-value (za/2). Second, solve for the margin of error. Third, solve for the confidence interval by subtracting and adding the margin of error with the sample probability of success.

Since the abs. val. graph points down, there has to be a -1 outside the abs val symbol.

Since it's also going through (1,-3) and (-1,-3) instead of (1,-1) and (-1,-1), it's been stretched by a factor of 3.

So y = -3•|x| works.

Answer:

Step-by-step explanation: Let x represent the number in the algebraic expression, then 6 less means the following:

x-6

1) Her weight was 126 ounces.

2) The weight of the watermelon in pounds and ounces 18 pounds and 7 ounces.

3) The weight of the elephant is 0.006 tons.

1) Given, Santiago's sister weighed 7 pounds. 14 ounces when she born.

We want to find this weight in ounces.

We know, 1 pound = 16 ounces

So, 7 pounds = 16×7=112ounces

So, 7 pounds. 14 ounces=112+14=126 ounces

2) Here given,Polly bought a watermelon that weighed 295 ounces.

We want to find What is the weight of the watermelon in pounds and ounces?

So, 295 ounces =\(\frac{295}{16}\)=18 pounds and 7 ounces

3) Given an elephant at the zoo weighs 12.000 pounds.

We know,

1 pound = 0.0005 ton

So, 12.000 pound =12×0.0005=0.006 tons

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Santiago's sister weighed 126 ounces when she was born, The watermelon weighs 18 pounds 7 ounces, The elephant weighs 6 tons.

To convert pounds to ounces, you need to multiply the number of pounds by 16, because there are 16 ounces in one pound. For example, if you have 2 pounds, you would multiply 2 by 16 to get 32 ounces.

Santiago's sister weighed 7 pounds 14 ounces when she was born. To find out how many ounces she weighed in total, we can use the conversion that 1 pound is equal to 16 ounces.

Total weight = 7 pounds x 16 ounces/pound + 14 ounces

Total weight = 112 ounces + 14 ounces

Total weight = 126 ounces

Answer: Santiago's sister weighed 126 ounces when she was born.

Polly bought a watermelon that weighed 295 ounces. To find out the weight of the watermelon in pounds and ounces, we can use the same conversion that 1 pound is equal to 16 ounces.

Weight in pounds = 295 ounces ÷ 16 ounces/pound

Weight in pounds = 18 pounds + 7 ounces

Answer: The watermelon weighs 18 pounds 7 ounces.

An elephant at the zoo weighs 12,000 pounds. To find out how many tons the elephant weighs, we can use the conversion that 1 ton is equal to 2,000 pounds.

Weight in tons = 12,000 pounds ÷ 2,000 pounds/ton

Answer: The elephant weighs 6 tons.

Therefore, Santiago's sister weighed 126 ounces when she was born, The watermelon weighs 18 pounds 7 ounces, The elephant weighs 6 tons.

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Answer:

4.475 is the answer.

Step-by-step explanation:

also hide your tabs just in case ;)

Answer:

4.475 believe me i did k12 before plz give me brainlyiest explanation:

The regression equation of the data values is y = 0.3x^2 - 2.8x +4.2

Using a technology such as a graphing calculator, we simply input the data values in the graphing calculator and then wait for the result.

The x coordinates must be entered into the x values and the y coordinates must be entered into the y values

Using a graphing technology, the regression equation of the data values is y = 0.3x^2 - 2.8x +4.2

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Answer:

A.

Step-by-step explanation:

A. because an input cannot have two outputs. However, two different inputs can have the same output.