Using the t-table, please find the t-value for 90% confidence and nu space equals space 9?

Answer:

C

Step-by-step explanation:

Step by step explanation:

The probability of selecting an orange marble is 0.33.

Option B is the correct answer.

It is the chance of an event to occur from a total number of outcomes.

The formula for probability is given as:

Probability = Number of required events / Total number of outcomes.

We have,

The number of times each marble is selected.

Green = 4

Black = 6

Orange = 5

Total number of times all marbles are selected.

= 4 + 6 + 5

= 15

Now,

The probability of selecting an orange marble.

= 5/15

= 1/3

= 0.33

Thus,

The probability of selecting an orange marble is 0.33.

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Answer:

A.) This system has no solutions.

Step-by-step explanation:

y = 1/2x + 4

-1/2x + y = -5

-1/2x + (1/2x + 4) = -5

4 = -5

The system has no solutions, if we graph it, we get that it has the same slope with two different y-intercepts, these two are parallel. These two points will never meet at a point.

Answer:

use the relationship between coefficients of a pair of linear equations for no solutions i.e. a1/a2 equal to b1/b2 not equal to c1/c2 .

Here, a is coefficient of x and b is coefficient of y and c is constant term in both equation but make sure that you put the values of a1,a2,b1,b2,c1 and c2 after converting both equation in the form ax+by+c=0 with proper sign and here y=1/2(x) +4 is equation 1 and other is equation 2

3) the line is closer to horizontal

it has flipped from 4/1 to 1/4

4/1 means up 4 and over one(just 4x)

1/4 means up one and over four(1/4x)

The line is still going the same direction, it has just

moved closer to being a horizontal line

The value of a is 2/√7.

The given quadratic equation is x² ₋ 3ax ₊ a² = 0

sum of the roots of the equation  = 4

here, A = 1

B = 3a

C = a²

Let α and β be the roots of the equation.

α ₊ β = ₋B/A

= ₋3a/1

= ₋3a

⇒ α×β = C/A

= a²/1

= a²

⇒α² ₊ β² = (α ₊ β )²  ₋ 2αβ

= (₋3a)² ₋ 2(a²)

= 9a² ₋ 2a²

therefore, 7a² = 4

a² = 4/7

a = √4/7

a = 2/√7

Hence we found the value of a as 2/√7.

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Answer:

4/1 is the answer

Step-by-step explanation:

hope this helps

Answer: less than 4 days

Step-by-step explanation:

415 - 25 = 390

if ur spending 100 each day then

day 1 = 290

day 2 = 190

day 3 = 90

he needs to spend less than 4 days

Answer:

3

Step-by-step explanation:

m = -6 / -2 = -3 / -1 = 3

Answer:

2.

Step-by-step explanation:

There are more boxes towards the highest numbers which means that the medians for northbound cars are generally high while the medians for southbound cars are located more on the smaller numbers representing the speed.

Answer:

Solved: w = 2  

Step-by-step explanation:

Combine like terms

5w+4w = 9w

Isolate or make w alone

9w= 18 so divide both sides by 9 to make w alone

9w ÷ 9 = w

18 ÷ 9 = 2

w = 2

Answer:

you just add 5w and 4w and taht is 9w

\(9x = 18 \\ w = 18 \div 9 \\ w = 2\)

Answer:

i think it is x=6/25 and y= 16/25

Step-by-step explanation:

The linear approximation, denoted as l(x), to the function f(x) = 1/x near x = 4 is given by the equation l(x) = f(a) + f'(a)(x - a). In this case, a = 4, so we need to find f(a), f'(a), and substitute them into the equation to obtain the linear approximation.

First, we find f(a) by substituting a into the function f(x). Thus, f(4) = 1/4.

Next, we need to determine f'(a), which represents the derivative of f(x) with respect to x, evaluated at x = a. The derivative of f(x) = 1/x is found by applying the power rule of differentiation. The derivative f'(x) = -1/x^2. Substituting a = 4, we get f'(4) = -1/(4^2) = -1/16.

Now, we can substitute f(a) and f'(a) into the linear approximation equation. Therefore, l(x) = 1/4 - (1/16)(x - 4).

In summary, the linear approximation l(x) to the function f(x) = 1/x near x = 4 is given by l(x) = 1/4 - (1/16)(x - 4). This approximation provides an estimate of the function's behavior in the vicinity of x = 4 using a linear equation.

To derive the linear approximation, we first determine f(a) by substituting a = 4 into the original function f(x) = 1/x. This yields f(4) = 1/4. Then, we find f'(x), the derivative of f(x) with respect to x, using the power rule of differentiation. The derivative f'(x) = -1/x^2. Evaluating this at x = 4 gives us f'(4) = -1/(4^2) = -1/16. Finally, we substitute f(a) and f'(a) into the linear approximation equation l(x) = f(a) + f'(a)(x - a) to obtain the final expression l(x) = 1/4 - (1/16)(x - 4). This equation provides an approximate representation of the original function near x = 4, allowing us to estimate its behavior using a simpler linear function.

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The value of "a" that makes the function "f" continuous can be determined by equating the two expressions for "f" at the point where x changes from negative to non-negative. In this case, that point is x = 0.

For "f" to be continuous at x = 0, we need to ensure that the left-hand limit and the right-hand limit of "f" are equal at x = 0.

Taking the left-hand limit as x approaches 0, we have lim(x→0-) \(e^(-a)\) = \(e^(-a)\).

Taking the right-hand limit as x approaches 0, we have lim(x→0+) ln(x+1) = ln(1) = 0.

Setting these two limits equal to each other, we get e^(-a) = 0.

Since\(e^(-a)\) is never equal to 0 for any real value of "a", there is no value of "a" that makes "f" continuous at x = 0. Therefore, "f" is not continuous overall for any value of "a".

Regarding the differentiability of "f", we can see that the second expression ln(x+1) is differentiable for x ≥ 0. However, the first expression \(e^(-a)\) is a constant function, and all constant functions are differentiable. Therefore, "f" is differentiable overall regardless of the value of "a".

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Answer:

I think the greater fraction is 27/5

Answer:

Step-by-step explanation:

what is greater: 19/5, 27/5, 10/3, 14/5​

fractions are divisions, we divide to see the greater

19/5= 3.8

27/5= 5.4

10/3= 3.33

14/5= 2.8

The probability of getting approximately 5 heads (that is, exactly 4 or 5 or 6 heads) in 10 coin flips is 0.656 or about 65.6%.

The probability of approximately 5 heads in 10 coin flips can be calculated using the binomial distribution formula. This formula states that the probability of getting exactly k successes (in this case, heads) in n independent trials (coin flips) with a probability p of success on each trial (0.5 for a fair coin) is:

P(k successes) = (n choose k) * p^k * (1-p)^(n-k)

Where "n choose k" is the binomial coefficient, which represents the number of ways to choose k items from a set of n items (in this case, the number of ways to get k heads in n coin flips).

For this problem, we want to find the probability of getting either exactly 4, 5, or 6 heads in 10 coin flips. So we need to calculate the probability of each of these outcomes separately and then add them together:

P(4 heads) = (10 choose 4) * 0.5^4 * 0.5^6 = 0.205

P(5 heads) = (10 choose 5) * 0.5^5 * 0.5^5 = 0.246

P(6 heads) = (10 choose 6) * 0.5^6 * 0.5^4 = 0.205

The total probability of approximately 5 heads is the sum of these probabilities:

P(4 or 5 or 6 heads) = P(4 heads) + P(5 heads) + P(6 heads) = 0.656

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Answer:

i think D

Step-by-step explanation:

Answer:

circumference 69.08 area 379.94

Step-by-step explanation:

Answer:

346.4 cm^2

Step-by-step explanation:

area = base * height/2

We can use UW as the base.

U + V + W = 180

24 + V + 36 = 180

V = 120

\( \dfrac{\sin W}{UV} = \dfrac{\sin V}{UW} \)

\( \dfrac{\sin 36^\circ}{34} = \dfrac{\sin 120^\circ}{UW} \)

\( UW = \dfrac{34\sin 120^\circ}{\sin 36^\circ} \)

\( UW = 50.1 \)

Now drop a perpendicular from V to UW to be the height, h.

\(\sin 24^\circ = \dfrac{h}{UV}\)

\( \sin 24^\circ = \dfrac{h}{34} \)

\( h = 34 \sin 24^\circ \)

\( h = 13.8 \)

area = base * height/2

area = UW * h/2

area = 50.1 cm * 13.8 cm/2

area = 346.4 cm^2

Answer:

we are interested to give your answer so I am with you forever

Answer:

1: Linear

2: Linear

Step-by-step explanation:

Scenario 1:

Equation: y=8x  (where x represents # of hours worked)

The graph would be linear.

Scenario2:

Equation: y=5x (where x is the # of boxes of donuts purchased)

The graph would be linear. ( I assumed that each box is $5 since 5/1=10/2 )

A similar situation could be: In an art shop, crayons are sold. It costs $7 for 1 box of crayons.

- The graph would be linear, and it would be constant as long as the price for each box of crayons is not changed. Equation is: y=7x

I'm not sure if this is exactly what the last question asked, pretty sure this would be an okay example.

The constant of proportionality for respective problems is 2/7, 15, 2.75, 13, 4/3.

A) In the first block,

Using points we can find the equation of line ,

Using the formula (y - y₀) = m (x - x₀)

where m is the slope of the equation

The equation of line becomes 2x = 7y

⇒ y = 2/7x

⇒ 2/7 is the constant of proportionality

B) From the graph given,

Again Using the formula (y - y₀) = m (x - x₀)

If we consider two points,

(2,30) and (4,60)

The equation of line becomes

15x = y

Here, the constant of proportionality is 15.

C) It is given the equation is y = 2.75x

The constant of proportionality here is 2.75

D) It is given that,

The price of 5 games is $65.00

The price of 1 game will be 65 / 5

= $13.00

The equation becomes

y = 13x

So, the constant of proportionality becomes 13.

E) Let us consider 2 points (3,12) and (6,24)

The equation of line using the formula (y - y₀) = m (x - x₀) becomes 4x = 3y

⇒ y = 4/3 x

The constant of proportionality becomes 4/3.

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The item that is not an item in the income statement is b. Furniture & Fixture as it is considered a fixed asset and is reported on the balance sheet instead.

The income statement, also known as the profit and loss statement, provides a summary of a company's revenues, expenses, gains, and losses over a specific period. It helps to assess the financial performance of a business. The income statement typically includes various items such as revenues, cost of goods sold, operating expenses, interest income or expense, and other gains or losses.

a. Discount allowed is a revenue item that represents the discounts given to customers as an incentive for early payment or other reasons. It is usually reported as a deduction from sales revenue.

c. Furniture & Fixture is not typically included in the income statement. Instead, it is considered a non-operating or non-recurring item and is generally classified as a fixed asset on the balance sheet. Fixed assets represent long-term investments made by a company for its operations.

d. Discount received is also not an item in the income statement. It represents the discounts received by a company from its suppliers for early payment or other reasons. Similar to discount allowed, it is usually reported as a deduction from the respective expense account.

In summary, b. Furniture & Fixture is the item that is not included in the income statement. It is considered a fixed asset and is reported on the balance sheet instead.

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a) The minimum number of wins he needs is 15. b) The standard deviation of X is σ = sqrt(Var(X)) ≈ 3.641. c) Standard normal table ≈ 0.411.

In part (a), we can use the formula for a binomial distribution to find the minimum number of wins Sam needs to break even. Let X be the number of wins in 520 spins, then X ~ Bin(520, 1/38). To break even, Sam needs to win at least $520, which means he needs at least m wins where 35m ≥ 520, or m ≥ 14.86. Since m must be an integer, the minimum number of wins he needs is 15.

In part (b), we can use the mean and variance of a binomial distribution to find the mean and standard deviation of X. The mean of X is E(X) = np = 520*(1/38) ≈ 13.684, and the variance of X is Var(X) = np(1-p) = 520*(1/38)*(37/38) ≈ 13.255. Therefore, the standard deviation of X is σ = sqrt(Var(X)) ≈ 3.641.

In part (c), we can use the Normal approximation to the binomial with the continuity correction to find P(X ≥ 15). Using the continuity correction, we can convert the discrete probability P(X ≥ 15) to a continuous probability P(X > 14.5). Standardizing X, we get Z = (14.5 - 13.684) / 3.641 ≈ 0.224. Using a standard normal table, we can find that P(Z > 0.224) ≈ 0.411. Therefore, P(X > 14.5) ≈ 0.411.

This answer is closer to the exact probability of 0.396 than the previous estimate of 0.10 too large, but it still overestimates the probability slightly. This could be due to the fact that the Normal approximation to the binomial assumes a continuous distribution, while the binomial distribution is discrete. Nonetheless, the Normal approximation with continuity correction is a useful tool for approximating probabilities in situations where the sample size is large.

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Answer:

what?

Step-by-step explanation:

Answer:

I play imvu and troll

Step-by-step explanation:

PPL BE THICC

The surface area obtained by rotating about the y -axis is 168.159.

In mathematics, integration is a technique for combining or adding the parts to arrive at the total. It is a form of differentiation in reverse where we break down functions into their component elements. This technique is employed to determine the summation on a sizable scale.

We have the function y=1+5x² from x=0 to x=2 about the y -axis.

So, the Surface are is

S = 2π ∫ R(x) √ (1+ f'(x)²}

Then, f'(x) = 10x

Then, S = 2π ∫ R(x) √ (1+ f'(x)²}

= 2π ∫ (1+5x²) √ (1+100x²)

= 1/150 (401 (√401-1)) π

= 168.159

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The estimated winners' prize in 2040, assuming the same rate of increase per year, is approximately $54,680,580,063,400.

The initial value is $150, and the final value is $1,163,000. The number of years between 1895 and 2007 is 2007 - 1895 = 112 years.

Using the formula for percentage increase:
Percentage Increase = [(Final Value - Initial Value) / Initial Value] * 100
= [(1,163,000 - 150) / 150] * 100
= (1,162,850 / 150) * 100
= 775,233.33%

Therefore, the winners' check increased by approximately 775,233.33% over the period from 1895 to 2007.

To estimate the winners' prize in 2040, we assume the same rate of increase per year. We can use the formula:
Future Value = Initial Value * (1 + Percentage Increase)^Number of Years

Since the initial value is $1,163,000, the percentage increase per year is 775,233.33%, and the number of years is 2040 - 2007 = 33 years, we can calculate the future value:

Calculating this expression:
Future Value = 1,163,000 * (1 + 775,233.33%)^33

Using a calculator or computer software, we can evaluate this expression to find the future value. Here's the result:

Future Value ≈ $1,163,000 * (1 + 77.523333)^33 ≈ $1,163,000 * 47,051,979.42 ≈ $54,680,580,063,400

Therefore, based on the assumed rate of increase per year, the estimated winners' prize in 2040 would be approximately $54,680,580,063,400.

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Answer:

a

Step-by-step explanation:

The block is divided into 7 pieces.

We need 4 of one color, 2 of another color, and one of a third color

4/7 + 2/7 + 1/7

Answer:

63

Step-by-step explanation:

21 x 3 = 63

i think this is right l:

The solution for the given algebraic equation is 63

\(\frac{1}{3} x = 21\)

x = 3*21 =63

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Elyse's garden is not a square because the length of the diagonal is not identical to the length of the sides.

The geometric form known as a square has four equal-length sides and four right angles (90-degree angles). Each corner of a square connects to the other corner perpendicularly, and the diagonals (lines dividing the corners) are equally long. You can calculate a square's area by multiplying one of its edges by itself. The method for calculating a square's area is:

given

The square of the hypotenuse, or longest side, in a right triangle, is equivalent to the sum of the squares of the other two sides. Since the square's edges are all equal in this instance, the Pythagorean theorem is expressed as:

\(a^2 + a^2 = d^2\)

We can construct the equation if Elyse determined the diagonal to be 4 times the square root of 2 feet.

a sqrt = 4sqrt(2) (2)

When we simplify this solution, we obtain:

where an is the square's longest edge and d is the diagonal's length.

When we simplify this solution, we obtain:

\(2a^2 = d^2\)

a = 4 feet

Since the length of each diagonal can be determined using the Pythagorean theorem and Elyse's garden has sides measuring 4 feet, we can determine if her garden is square by computing the diagonal using the formula we created earlier:

5.656854249 feet is = to d = a sqrt(2)/4sqrt(2).

Elyse's garden is not a square because the length of the diagonal is not identical to the length of the sides.

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