Janet has 7 albums. She divides 42 pictures evenly between the albums, Which expression helps us find out how many pictures are in each album? Choose 1 answer:​

Answer:

It will be 29.39

Step-by-step explanation:

Hope this Helped

\( \sin ^{ - 1} ( \frac{4}{9}) = 26.39\)

Answer:

\(A=40+14t\)

\(J=70+8t\)

Amount of money Alexa and Joshua have saved in the week that they have the same amount of money saved is equal to $110.

Step-by-step explanation:

Initial amount as savings in account of Alexa = $40

Amount saved per week by Alexa = $14

Initial amount as savings in account of Joshua = $70

Amount saved per week by Joshua = $8

Amount saved by Alexa \(t\) weeks after the beginning of the year (A) = \(\$(40+14t)\)

\(A=40+14t\)

Amount saved by Joshua \(t\) weeks after the beginning of the year (J) = \(\$(70+8t)\)

\(J=70+8t\)

Now solve \(40+14t=70+8t\).

\(70-40=14t-8t\\30=6t\)

t = 5 years

\(A=40+14(5)=40+70=\$110\\J=70+8(5)=70+40=$110\)

Answer:

110 dollars

Step-by-step explanation:

First equation: 14t+40

Second equation: 8t+70

Then find the value of t.

Equation: 14t+40= 8t+70

t=5. Then substitute the value of t into the first equation to get your final answer.

In the given scenario, where there is one infinitely long track and overtaking is impossible, the initial situation consists of three equally spaced trains, each moving at a different speed. The trains have the capability to link up when one catches up to the other, resulting in a single train moving at the speed of the slower train.

As the trains move, they will eventually reach a configuration where the fastest train catches up to the middle train. At this point, the fastest train will link up with the middle train, forming a single train moving at the speed of the middle train. The remaining train, which was initially the slowest, continues to move independently at its original speed. Over time, the process continues as the new single train formed by the fastest and middle trains catches up to the remaining train. Once again, they link up, forming a single train moving at the speed of the remaining train. This process repeats until all the trains eventually merge into a single train moving at the speed of the initially slowest train. In summary, on this strange railway line, where trains can only link up and cannot overtake, the initial configuration of three equally spaced trains results in a sequence of mergers where the trains progressively combine to form a single train moving at the speed of the initially slowest train.

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With the same point estimate, Matthew's estimate will have a smaller margin of error due to the larger sample size and wider confidence interval.

The margin of error is influenced by the sample size and the chosen confidence level. Generally, a larger sample size leads to a smaller margin of error, and a higher confidence level leads to a larger margin of error.

Matthew's sample size is four times larger than Katrina's sample size (400 vs. 100). Assuming they obtained the same point estimate, Matthew's estimate will have a smaller margin of error compared to Katrina's estimate. This is because a larger sample size allows for more precise estimation and reduces the variability in the estimate.

Additionally, Katrina constructed a 95% confidence interval, while Matthew constructed a 99% confidence interval. A higher confidence level requires a wider interval to capture the true population parameter with a higher degree of certainty. Therefore, Matthew's estimate will have a smaller margin of error compared to Katrina's estimate.

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Answer: $15 per hour

Step-by-step explanation:

Answer:

The answer would be, A.

Step-by-step explanation:

Cuz I got it right on the "Quiz".

The price should you sell the bracelets at is given by the term of the amount is $64.

The increase in income that comes from selling one more unit of output is known as marginal revenue. Although marginal revenue can remain constant above a certain level of output, it will eventually start to decline as the output level rises due to the law of diminishing returns. According to economic theory, companies that are completely competitive keep on producing goods until marginal revenue and marginal cost are equal.

Price, the sum of money required to purchase a specific good. Price is also a measure of value insofar as it reflects what consumers are willing to pay for a product's worth.

Overall marginal cost (MC) = Explicit (stated) marginal cost + Profit per unit given up = $2 + $6 = $8

Profit is maximized when Marginal revenue (MR) equals Overall MC.

P = 120 - 2Q

Total revenue (TR) = P x Q = 120Q - 2Q2

MR = dTR/dQ = 120 - 4Q

Equating with Overall MC,

120 - 4Q = 8

4Q = 112

Q = 28

P = 120 - (2 x 28) = 120 - 56 = $64.

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The price should you sell the bracelets at is given by the term of the amount is $64.

The term "marginal revenue" refers to the additional income generated by selling one additional unit of output. Although marginal income can remain constant above a particular output level, it will ultimately start to decrease as the output level increases owing to the law of diminishing returns.

Companies that are entirely competitive continue to produce items until marginal income and marginal cost are equal, according to economic theory. A certain good's price is the amount of money needed to buy it. Insofar as it represents what customers are prepared to pay for a product's worth, price is likewise a measure of value.

Overall marginal cost (MC) = Explicit (stated) marginal cost + Profit per unit given up = $2 + $6 = $8

Profit is maximized when Marginal revenue (MR) equals Overall MC.

P = 120 - 2Q

Total revenue (TR) = P x Q = 120Q - 2Q2

MR = dTR/dQ = 120 - 4Q

Equating with Overall MC,

120 - 4Q = 8

4Q = 112

Q = 28

P = 120 - (2 x 28)

= 120 - 56

= $64.

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Therefore, we would anticipate finding 150,000x golden fish throughout the entire lake based on the class average.

Volume is the measure of room within a particular 3D entity in mathematics. For illustration, a fish aquarium measures three feet long by one foot wide by two feet high. The capacity is calculated by multiplying the length, the breadth, and the height, or 3x1x2, that also equals six. The fish aquarium therefore has a 6 cubic foot capacity.

Let's say the class average is "x" yellow fish per liter of water.

If the sample contained 500 liters of water, we can estimate the number of yellow fish in the sample as:

500 * x = 500x

Now that we have an approximation, we can use it to determine the anticipated number of yellow fish in the 150,000,000-liter pool as a whole.

The expected number of yellow fish in the whole lake would be:

(500x / 500) * 150,000,000 = 150,000x

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the expected number of tosses to get the first heads is 2.75 tosses.

To calculate the expected number of tosses to get the first heads, we can consider the probabilities associated with each coin and their respective probabilities of getting heads.

Let's denote the expected number of tosses as E.

For coin A:

The probability of selecting coin A is 1/4, and the probability of getting heads with each toss is 1/2.

So, the expected number of tosses for coin A is 1 / (1/2) = 2.

For coin B:

The probability of selecting coin B is 3/4, and the probability of getting heads with each toss is 1/3.

So, the expected number of tosses for coin B is 1 / (1/3) = 3.

To find the overall expected number of tosses, we need to consider the probabilities of selecting each coin.

Expected number of tosses = (Probability of selecting coin A * Expected number of tosses for coin A) + (Probability of selecting coin B * Expected number of tosses for coin B)

Expected number of tosses = (1/4 * 2) + (3/4 * 3)

Expected number of tosses = 1/2 + 9/4

Expected number of tosses = 2/4 + 9/4

Expected number of tosses = 11/4

Expected number of tosses = 2.75

Therefore, the expected number of tosses to get the first heads is 2.75 tosses.

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answer: 5.34

Step by step explanation 12.75 + 13.95=26.7

20% of 26.7 is 5.34

Let's use the formula provided:

The probability of the random variables being less than 23 will be 0.6.

Probability is defined as the ratio of the number of favourable outcomes to the total number of outcomes in other words the probability is the number that shows the happening of the event.

Probability = Number of favourable outcomes / Number of sample

Given that a random variable has possible values of 20, 21, 22, 23, and 24 that are equally likely to occur.

Total sample = { 20, 21, 22, 23, 24 } = 5

Favourable outcome = { 20,21,22} = 3

The probability will be calculated as,

Probability = 3 / 5

Probability = 0.6

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Answer:

3x at the power of 2 -2x+21

ask for explanation if needed

Answer:

Step-by-step explanation:

The quadratic equation in factored form:

We have:

Substitute them to get:

Converting this into standard form:

To determine Gunther's weight after 10 weeks, we can use a linear equation. Given that he plans to lose 2 pounds each week, we can represent his weight after 10 weeks as a linear function of time. Therefore, Gunther's weight after 10 weeks would be 268 pounds.

1. The equation would be: weight = starting weight - (rate of weight loss * number of weeks). Substituting the given values, we find Gunther's weight after 10 weeks.

2. Gunther's weight after 10 weeks can be determined using a linear equation. Let's denote Gunther's starting weight as W₀ and the rate of weight loss as R. Since he plans to lose 2 pounds each week, the rate of weight loss R is -2 (negative because it represents a decrease in weight).

3. The equation for Gunther's weight after 10 weeks would be: weight = W₀ - (R * number of weeks).

Substituting the given values, we have weight = 248 - (-2 * 10).

4. Simplifying further, weight = 248 + 20 = 268. Therefore, Gunther's weight after 10 weeks would be 268 pounds.

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Answer: f(x) = -1/2(x+3)

Example: g(x) = -1/2(-x-3)

This function is a dilation and a reflection of the parent function f(x) because when graphed, the two functions have the same shape but are reflected over the y-axis and are half the size of the original.

The required amount in the account is given as $878.48.

Given that,
On February 1, the balance is your account is $516.81. On July 1, you deposit $310.90. Your bank pays 6.25% interest.

Simple interest is a quick and simple formula for figuring out how much interest will be charged on a loan.

Here,
According to the question,
Total money in the account = 516.81 + 310 = 775.81
Total money in the account after interest = 775.81 [1 + 0.0625] = 878.48

Thus, the required amount in the account is given as $878.48.

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Answer:

Below

Step-by-step explanation:

The plane's distance is the hypotenuse of a right triangle with legs of

(50 -20)mi = 30 miles     and     30500 - 18000 = 12500 ft

                             for consistent units  12500ft/5280ft/mile = 2.36742 miles

Now just use Pythagorean theorem

Hypotenuse^2 = leg1^2 + leg2^2

               h^2    = 30^2 + 2.36742^2

                   h = ~ miles 30.093 miles  ( note that the vertical descent distance does not matter much)

    (this is 158 892 feet)

The options are analyzed as follows:

1: The overline 0.729 means:

This is a non- terminating recurring decimal hence it is rational.

2: The nuumber 0.0195347... is a non terminating and non recurring decimal hence it is irrational.

3. The number -12 is rational since it is an integer.

4.The number 4.565656... is a non terminating recurring decimal hence it is rational.

5. The number given by:

Since square root of 2 is irrational and 3 is rational the product is irrational.

Also the decimal is non terminating non recurring hence it is irratonal.

So the options 2 and 5 are irrational.

The constant of proportionality (k) is equal to 24. Also, an equation which describes a proportional relationship between time in hours (h) and time in days (d) is h = 24d.

A proportion can be defined as an equation which is typically used to represent (indicate) the equality of two (2) ratios. This ultimately implies that, proportions can be used to establish that two (2) ratios are equivalent and solve for all unknown quantities.

Mathematically, a direct proportion can be represented by the following equation:

y = kx

Where:

In terms of time in hours, a day equals to 24 hours. Therefore, the constant of proportionality (k) is equal to 24.

Based on direct proportion, an equation which describes a proportional relationship between time in hours (h) and time in days (d) is given by:

h = 24d.

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Complete Question:

There is a proportional relationship between time in hours and time in days.

A. What is the constant of proportionality?

B. what equation describes this relationship?

Answer:

in this case you can use protector also but

there is another way

Step-by-step explanation:

as we know sum of a triangle is 180 degree

so let's D= 2x,x

35+x+2x=180

3x+35=180

3x=180-35

3x=145

x=145÷3

x =46.06

Step-by-step explanation:

First I would look at the y intercept. In a linear equation, y = mx + b, b is the y-intercept and m is the slope. This means that (0,6) is a point on the line since at a y-intercept, the x value is 0. First you should plot this point.

Next, the slope is 4, meaning that for every 1 unit to the right, the line rises 4 units. You can count 1 to the right and 4 up from the y-intercept, which gives you (1,10), a second point on the line. After this, you can connect the two points and there you go, you have a graph!

The values are;

⇒ F ∩ H = Ф

⇒ F ∪ H = (- ∞, 7]

What is Coordinates?

A pair of numbers which describe the exact position of a point on a cartesian plane by using the horizontal and vertical lines is called the coordinates.

Given that;

F and H are defined as;

F = {v | v < 4 }

H = {v | v ≥ 7 }

Now,

Since, F and H are defined as;

F = {v | v < 4 }

H = {v | v ≥ 7 }

Hence, The values are;

F ∩ H = {v | v < 4 } ∩  {v | v ≥ 7 }

         = Ф

And, F ∪ H = {v | v < 4 } ∪  {v | v ≥ 7 }

                 = (- ∞, 7]

Thus, The values are;

⇒ F ∩ H = Ф

⇒ F ∪ H = (- ∞, 7]

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Answer:

Example 1 : Convert 2 feet into inches. Solution : Here, we convert bigger unit into smaller unit. So we have to multiply. 2 feet = 2 x 12 inches = 24 inches Example 2 : Convert 3.5 yards into inches. Solution : Here, we convert bigger unit into smaller unit…

Answer:

-5x+(- 15 ) = 20

x=-7

Step by Step

-5x+(-15)= 20 becomes

-5-15=20 add 15 tp (15 and 20)

-5x=35 ( divide by 51

x=-7

Using concepts of Errors and Measurement, we got 252cm³ will be  the maximum error in volume of sphere.

We know that volume(V) of sphere is given by  =\(\frac{4.\pi .r^{3} }{3}\),where r is the radius of the volume.

If the error in the measured value of r is denoted by then the corresponding error in the calculated value of Volume is , which can be approximated by the differentiating the volume with respect to radius.

When r = 20 and dr = 0.05, this becomes:

d(V)/dr = 4×π×r²

=>d(V)=(4×π×r²)×dr

On putting the values,

=>d(V)=4×π×(20²)×(0.05)

=>d(V)=4×3.14×400×0.05

=>d(V)=252

Hence, the maximum error is 252cm³ in calculating the volume of sphere if we use the given radius.

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Answer:

-9z²

Step-by-step explanation:

-(3z)²

-(3z * 3z)

-(9z)

-9z²

Best of Luck!

Answer:

s= -1

Step-by-step explanation:

I believe 7=-10s-3

(s=-1)

The total number of oranges used in Bertha's pyramid is 24 + 6 + 2 + 1 = 33 oranges.

To calculate how many oranges are used in Bertha's pyramid, we first need to find out how many oranges are in each

layer of the pyramid. Since the base of the pyramid is a rectangle that is 4 oranges by 6 oranges, there are a total of 4 x 6 = 24 oranges in the base layer.

For the second layer of the pyramid, each orange rests on 4 oranges below it.

Since the base layer has 24 oranges, there will be 24 / 4 = 6 oranges in the second layer.

For the third layer, each orange again rests on 4 oranges below it.

So there will be 6 / 4 = 1.5 oranges in the third layer.

Since we cannot have half an orange, we round up to 2 oranges.

Finally, the top layer of the pyramid will consist of a single orange.

Therefore, the total number of oranges used in Bertha's pyramid is 24 + 6 + 2 + 1 = 33 oranges.

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The area of the larger figure that is similar to the smaller one is: 28.2 m².

Where A and B represent the areas of two similar figures, and a and b are their corresponding side lengths, respectively, the formula that relates their areas and side lengths is:

Area of figure A / Area of figure B = a²/b².

Given that the two figures are similar as shown in the image above, find each of their respective side lengths if we are given the following:

Perimeter of smaller figure = 20 m

Area of smaller figure = 19.6 m²

Perimeter of larger figure = 34m

Area of larger figure = x

Therefore:

20/34 = a/b

Simplify:

10/17 = a/b.

Find the area (x) of the larger figure using the formula given above:

10²/12² = 19.6/x

100/144 = 19.6/x

100x = 2,822.4

x = 2,822.4/100

x ≈ 28.2 m²

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