3. The spinner below is spun 10 times. If the experimental probability of landing on a 3 is then what is the difference between the experimental and the theoretical probabies? ​

Answer:

I think 47 and 55

Explanation:

I think that each number is the previous one plus 8;

7+8=15

15+8=23

23+8=31

31+8=39

So, next will be:

39+8=47

47+8=55

Is this what ur looking for?? hope this help:)

Answer:

8.5 in

Step-by-step explanation:

Area = Length × Width

153 = L × 18

L = 153÷18

L= 8.5

L= 8.5 in

Answer:

10a

Step-by-step explanation:

The present value of payments at the end of each quarter of $245 for ten years with an interest rate of 4.35% compounded monthly is approximately $25,833.42.

To find the present value of the payments, we can use the present value formula for an ordinary annuity. The formula for the present value of an ordinary annuity is:
PV = PMT * ((1 - (1 + r)^(-n)) / r)

Where:
PV = Present Value
PMT = Payment amount
r = Interest rate per period
n = Number of periods

In this case, the payment amount is $245, the interest rate is 4.35% compounded monthly, and the number of periods is 10 years or 40 quarters (since there are 4 quarters in a year).

Let's plug in the values into the formula:
PV = $245 * ((1 - (1 + 0.0435/12)^(-40)) / (0.0435/12))

First, let's simplify the exponent part:
(1 + 0.0435/12)^(-40) ≈ 0.617349

Now, let's plug in the values and calculate:
PV = $245 * ((1 - 0.617349) / (0.0435/12))
PV = $245 * (0.382651 / 0.003625)
PV = $245 * 105.4486339
PV ≈ $25,833.42

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Answer:

60% adult

40% children

Reasoning:

Add the adults and children first.

Then find the ratios of the children and parent percentages.

16:40 children

24:40 adult

16/40=2/5=0.4=40% children

24/40=3/5=0.6=60% adult

Answer:

40% is children and 60% in adults

Step-by-step explanation:

so if you add the two you have 40, 100% of 40 is 40 and 50% is 20, so we know that the children percent is less than 50, if you go through you will find that 40% of 40 is 16 therefor leaving the rest (aka 60%) to be adults

Answer:

The first one

Step-by-step explanation:

since you're subtracting 12, it will be -8

the -8/4 = -2

Answer:

It is the first answer choice b<4 or b>-2

Step-by-step explanation:

Solve the first inequality like so

6b<24

divide by 6 on both sides

b<4

Now for the second inequality solve like so

4b+12>4

Subtract 12 on both sides

4b>-8

Divide on both sides by 4

b>-2

This leaves us with only one answer choice which is A -

b<4 or b>-2

If you can please make my answer the brainliest that would be much appreciated. Thanks!

Answer:

The total cost is $16.96

The cost per photo is $1.06

Step-by-step explanation:

Hello!

1 roll of film costs $4.79. 1 roll of film has 16 photos. To develop the 16 photos, you need to pay $12.17.

First, let's find the total cost for the film and the development for 1 roll of film:

The total cost of 16 photos is $16.96

Now, we have to find the price per picture on the roll of film. We know that there are 16 shots on the film, so we can simply divide the total price by 16 to find the price per picture.

Divide:

The price per photo is $1.06

No, randomly selecting 852 of the 1,330 children to be in the book group is not the same as randomly assigning the children to the two experimental groups.

Random selection only involves choosing a group of participants out of a larger population, while random assignment involves assigning each participant to either the experimental group or the control group.

Random selection involves choosing a group of participants out of a larger population, while random assignment involves assigning each participant to either the experimental group or the control group. Random selection could be used to select the participants for the two groups, but it is not the same as random assignment. Random assignment requires that each participant is randomly assigned to either the experimental group or the control group. This ensures that both groups are similar and that any differences in outcomes can be attributed to the intervention. Therefore, randomly selecting 852 of the 1,330 children to be in the book group is not the same as randomly assigning the children to the two experimental groups.

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Answer:

It will rain 48 inches in 12 hours.

Step-by-step explanation:

If for every hour it rains 4 inches, then to find how many inches it rained in 12 hours you just need to multiply the amount of hours by 4: 12 x 4 = 48

PLZ mark brainliest if I helped

The 95% confidence interval for the slope coefficient in a linear regression with an estimated value of 15 and standard error of 1 is approximately 13.04 to 16.96.

If your estimated slope coefficient in a linear regression with a large number of observations was 15 with a standard error of 1, the 95% confidence interval for this coefficient can be calculated using the formula:
Confidence Interval = estimated coefficient ± (critical value × standard error)
In a two-tailed test at a 95% confidence level, the critical value is approximately 1.96. Therefore, the confidence interval would be:
15 ± (1.96 × 1)
Simplifying the expression:
15 ± 1.96
This means that the 95% confidence interval for the slope coefficient would range from approximately 13.04 to 16.96.
In summary, if your estimated slope coefficient in a linear regression with a large number of observations was 15 with a standard error of 1, the 95% confidence interval for this coefficient would be approximately 13.04 to 16.96.

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Answer:

it has two zeros because it is touching x axis two times

Answer:

A Juan le quedan 45 empanadas.

Step-by-step explanation:

Dado que Juan vende 180 empanadas al día, y por la mañana vende las dos terceras partes y por la tarde la cuarta parte de lo que queda, para determinar cuántas empanadas le queda por vender en la noche se debe realizar el siguiente cálculo:

180 x 2 / 3 = 120

180 - 120 = 60

60 x 1/4 = 15

60 - 15 = 45

Por lo tanto, a Juan le quedan 45 empanadas.

Expanding the equation gives us the final quadratic equation is 5x^2 - 15x - 30 = 0.

The quadratic equation with roots −3 and 6 can be written in the form:

(x - r1)(x - r2) = 0,

where r1 and r2 are the roots of the equation. Substituting the given roots, we have:

(x - (-3))(x - 6) = 0,

which simplifies to:

(x + 3)(x - 6) = 0.

To include the leading coefficient of 5, we can multiply both sides of the equation by 5:

5(x + 3)(x - 6) = 0.

Expanding the equation gives us the final quadratic equation:

5x^2 - 15x - 30 = 0.

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Answer:

For an arithmetic series (note: the sum of the terms in an arithmetic sequence), the formula is:

Sn = ( 2a1 + (n-1)d ) * n/2

Plug in the values of:

n=25

a1 = -4

d = 3

S25 = ( 2*(-4) + (25-1)(3))*(25/2)

S25 = (-8 + 72)*25/2

S25 = (64)(25/2)

S25 = 800

The solution for b is y-mx in the equation y=mx+b.

The given equation is y=mx+b

y equal r=to m times of x plus b

We need to solve for b in the equation

To solve we have to isolate b from the equation

Subtract mx from both sides

y-mx=b

Hence, the solution for b is y-mx in the equation y=mx+b.

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Answer:

here is the answer bae. Feel free to ask for more

Answer:

He was 11

Step-by-step explanation:

if Camila was 4 years younger than her brother and she was seven. That means he is 4 years older than her. so 7+4=11

Internal validity explains the association between binge-watching tv and irritability.

In the context of a specific study, internal validity refers to how strongly a piece of evidence supports a claim regarding cause and effect. It is one of the most crucial characteristics of scientific research and a crucial idea when considering evidence more generally.

The extent to which alternative explanations for a study's findings (often, sources of systematic error or "bias") can be ruled out is a measure of its internal validity. In contrast, external validity measures how well data support judgments made regarding other situations (that is, the extent to which results can be generalized).

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Answer:

x=45°

Does the answer help you?

Answer:

The reference angle for 155° is 25°

Step-by-step explanation:

The reference angle is the angle that the angle arm makes with the x-axis be it clock wise or anti-clock wise.

The reference angles are obtained by the following reference

0 - 90° => Angle

90° - 180° => 180 - angle

Our given angle is: 155° so we will use the second rule

The reference angle will be:

180° - 155° = 25°

Hence,

The reference angle for 155° is 25°

The width of the rectangle is 9 meter.

Now, According to the question:

The perimeter of a rectangle is defined as the sum of all the sides of a rectangle. For any polygon, the perimeter formulas are the total distance around its sides. In case of a rectangle, the opposite sides of a rectangle are equal and so, the perimeter will be twice the width of the rectangle plus twice the length of the rectangle and it is denoted by the alphabet “p”.

Now, Solving the problem:

Perimeter of rectangle is 50 meter sq.

Length of the rectangle(L) is 16 meter.

We have to find the width (W) of the rectangle.

We know that,

Perimeter of rectangle is = 2 (L + W)

50 = 2(16 + W)

50 = 32 + 2W

2W = 50 - 32

2W = 18

W = 18/2

W = 9

Hence, The width of the rectangle is 9 meter.

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a) The depreciation expenses for Year 1 to Year 4 using the straight-line method are $2,632, $5,263, $4,211, and $2,632, respectively.

b) Using the units-of-activity method, the depreciation expenses are $7,000, $14,000, $11,900, and $7,000, respectively.

c) Using the double-declining-balance method, the depreciation expenses are $4,658, $11,172, $7,302, and $2,640, respectively.

a) To calculate the depreciation expense for each year using the straight-line method, the company needs to first determine the depreciable cost of the equipment. This is the cost of the equipment minus its estimated residual value.

The depreciable cost is $41,550 - $1,650 = $39,900.

To calculate the annual depreciation expense using the straight-line method, divide the depreciable cost by the useful life of the equipment, which is three years.

Year 1: ($39,900 ÷ 3) × (1,000 ÷ 5,700) = $2,632

Year 2: ($39,900 ÷ 3) × (2,000 ÷ 5,700) = $5,263

Year 3: ($39,900 ÷ 3) × (1,700 ÷ 5,700) = $4,211

Year 4: ($39,900 ÷ 3) × (1,000 ÷ 5,700) = $2,632

b) To calculate the depreciation expense using the units-of-activity method, the company needs to first determine the depreciation rate per unit of activity. This is the depreciable cost of the equipment divided by its total estimated hours of use.

The depreciation rate per unit of activity is $39,900 ÷ 5,700 hours = $7 per hour.

Year 1: $7 × 1,000 hours = $7,000

Year 2: $7 × 2,000 hours = $14,000

Year 3: $7 × 1,700 hours = $11,900

Year 4: $7 × 1,000 hours = $7,000

c) To calculate the depreciation expense using the double-declining-balance method, the company needs to first determine the straight-line depreciation rate. This is the depreciable cost of the equipment divided by its useful life.

The straight-line depreciation rate is $39,900 ÷ 3 years = $13,300 per year.

The double-declining-balance depreciation rate is twice the straight-line rate, or $13,300 × 2 = $26,600.

Year 1: $26,600 × (1,000 ÷ 5,700) = $4,658

Year 2: ($39,900 - $4,658) × (2,000 ÷ 5,700) = $11,172

Year 3: ($39,900 - $4,658 - $11,172) × (1,700 ÷ 5,700) = $7,302

Year 4: ($39,900 - $4,658 - $11,172 - $7,302) × (1,000 ÷ 5,700) = $2,640

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Answer:

0.07017

Step-by-step explanation:

The required volume of the cube is 439cm³.

A cube is a three-dimensional solid object in geometry that is surrounded by six square faces, facets, or sides, three of which meet at each vertex.

It seems to be a hexagon when viewed from a corner, and its net is frequently portrayed as a cross.

One of the five Platonic solids, the cube is the only regular hexahedron.

So, the cube volume formula:

V = a³

We have the length of the side of the cube which is 7.6.

Now, insert it in the formula as follows:

V = a³

V = 7.6³

V = 7.6 * 7.6 * 7.6

V = 438.976

Rounding off: 439cm³

Therefore, the required volume of the cube is 439cm³.

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The conditional probability of b given a can be found by P(B|A)

The likelihood of an event taking place given that another event has already happened is known as conditional probability. p(A|B) is the likelihood that event A will take place in the absence of occurrence B. Applying the formula: P(b|a) = P(a and b) / P(a), where P(a and b) is the probability that both a and b will happen, and P(a) is the likelihood that a will take place.

Given that a has previously occurred, this formula indicates the likelihood that b will also occur. In other words, it determines the probability that b will occur, assuming that a has already occurred. Moreover, this equation presupposes that occurrences a and b are not independent. As the occurrence of a has no bearing on the likelihood of b, if a and b are independent, the conditional probability of b is given and is just the same as the probability of b happening.

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Answer:

1.47 miles/min (to 3sf)

Step-by-step explanation:

Total amount of time taken for both parts of the journey

= 12 minutes + 122 minutes

= 134 minutes

Average speed for the entire journey = 197 miles ÷ 134 minutes

                                                              = 1.47 miles/min (to 3sf)

Answer:

1.60 L of 10% solution

0.40 L of 35% solution

Step-by-step explanation:

If x = amount of 10% saline solution, and y = amount of 35% saline solution, then:

x + y = 2

0.10x + 0.35y = 0.15(2)

Solve with substitution:

0.10x + 0.35(2 − x) = 0.15(2)

0.10x + 0.70 − 0.35x = 0.30

0.40 = 0.25x

x = 1.60

y = 0.40

The perimeter is the sum of the lengths of the sides of a closed plane figure.

The total distance from the outside of the closed figure is called the perimeter. Sum of all sides of a closed figure. The formula is: perimeter = sum of all sides

The units for the perimeter of a polygon remain the same as the units for each side. If the sides have different units, convert them to the same units and then find the perimeter.

A regular polygon has all equal sides. So if the polygon has 'n' sides, add the same length 'n' times. Perimeter of regular polygon = (length of one side) × number of sides

Example: Perimeter of regular hexagon is 6 × length of side

Total distance around polygon is. It can be found by summing all the sides of the polygon. Rectangle perimeter = 2( length + width)

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Answer:

Step-by-step explanation:

y = 3(4x + 1)^1/2 - 2x

dy/dx = 3*1/2(4x + 1)^-1/2 * 4  - 2

= 4 * 1.5 (4x + 1)^-1/2 - 2

= 6(4x + 1)^-1/2 - 2

= [6/√(4x + 1)] - 2

y = 3(4x + 1)^1/2 - 2x

∫3(4x + 1)^1/2 - 2x . dx

= 3 * 1/4 *  (4x + 1)^3/2 / 3/2 - x^2 + C

= 3/4 * 2/3 (4x + 1)^3/2 - x^2 + C

= 1/2((4x + 1)^3/2 - 2x^2) + C.

Answer:

Step-by-step explanation:

\(y=3*\sqrt{4x+1} -2x\\\\y'=\dfrac{dy}{dx} =\dfrac{3}{2*\sqrt{4x+1} } -2\\\\\\\int {(3*\sqrt{4x+1} -2x}) \, dx \\\\=\dfrac{3}{4} *\int {4*(4x+1)}^{\frac{1}{2}} \, dx -2\int {x} \, dx \\\\=\dfrac{-3}{4}*\sqrt{(4x+1)^3} *\dfrac{2}{3} }-x^2+C\\\\=\dfrac{\sqrt{(4x+1)^3}}{2} -x^2+C\)

The Hermite curve with four control points P0(0,0), P1(1,1), P2(2,-1), and P3(3,0) has tangent vectors P0'(1,1) and P3'(1,1) at the endpoints. To determine the intermediate points on the curve at t = 1/3 and t = 2/3, we can use the Hermite interpolation formula.

The Hermite interpolation formula allows us to construct a curve based on given control points and tangent vectors. In this case, we have four control points P0, P1, P2, and P3, and tangent vectors P0' and P3'.

To find the intermediate point at t = 1/3, we use the Hermite interpolation formula:

P(t) = \((2t^3 - 3t^2 + 1)P0 + (-2t^3 + 3t^2)P3 + (t^3 - 2t^2 + t)P0' + (t^3 - t^2)P3'\)

Substituting the given values:

\(P(1/3) = (2(1/3)^3 - 3(1/3)^2 + 1)(0,0) + (-2(1/3)^3 + 3(1/3)^2)(3,0) + ((1/3)^3 - 2(1/3)^2 + (1/3))(1,1) + ((1/3)^3 - (1/3)^2)(1,1)\)

Simplifying the equation, we can find the coordinates of the intermediate point at t = 1/3.

Similarly, for t = 2/3, we use the same formula:

\(P(2/3) = (2(2/3)^3 - 3(2/3)^2 + 1)(0,0) + (-2(2/3)^3 + 3(2/3)^2)(3,0) + ((2/3)^3 - 2(2/3)^2 + (2/3))(1,1) + ((2/3)^3 - (2/3)^2)(1,1)\)

Calculating the equation yields the coordinates of the intermediate point at t = 2/3.

In this way, we can use the Hermite interpolation formula to determine the intermediate points on the Hermite curve at t = 1/3 and t = 2/3 based on the given control points and tangent vectors.

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