whats 99+m=1002?? please help

Answer:

1) 20 % decrease

2)21% decrease

3)8% increase

4)39.9% increase

5)23 % increase

6) 43.3 decrease

Step-by-step explanation:

Answer:

19 cookies

Step-by-step explanation:

200/8 = 25

25 grams of flour in each cookie.

480/25 = 19.2

Rosie can make up to 19 cookies with 480g of flour

Answer:

The greatest number of cookies Rosie can make is 19 cookies.

Step-by-step explanation:

200g = 8 cookies

400g = 16 cookies

475g = 19 cookies

you only have 480 g of flour and 1 cookie uses 25 g of flour.

Your Welcome!

Answer:

i think 3:4 dont take my word for it thoughn

Step-by-step explanation:

the rate of change of the radius at the instant the volume equals 36π cm³ is 7 / (36π) cm/sec.

The volume V of a sphere with radius r is given by the formula V = (4/3)πr³. We are given that the rate of change of the volume is 7 cm³/sec. Differentiating the volume formula with respect to time, we get dV/dt =(4/3)π(3r²)(dr/dt), where dr/dt represents the rate of change of the radius with respect to time.

We are looking for the rate of change of the radius, dr/dt, when the volume equals 36π cm³. Substituting the values into the equation, we have: 7 = (4/3)π(3r²)(dr/dt)

7 = 4πr²(dr/dt) To find dr/dt, we rearrange the equation: (dr/dt) = 7 / (4πr²) Now, we can substitute the volume V = 36π cm³ and solve for the radius r: 36π = (4/3)πr³

36 = (4/3)r³

27 = r³

r = 3  Substituting r = 3 into the equation for dr/dt, we get: (dr/dt) = 7 / (4π(3)²)

(dr/dt) = 7 / (4π(9))

(dr/dt) = 7 / (36π)

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The percentage of these funds are expected to be within ±6 standard deviations of the mean is 97.22% (approx).Hence, the required answer is 97.22.

The Chebyshev’s theorem is used to determine the percentage of observations that lie within a certain number of standard deviations of the mean in a set of data.

According to the Chebyshev rule, what percentage of these funds are expected to be within ±6 standard deviations of the mean can be calculated using the formula:

\($$1 - \frac{1}{k^2}$$\)

Where k is the number of standard deviations. For the question, the mean is 7.10 and standard deviation is 3.50.As per the given data, we can find that, the number of standard deviation from the mean is ±6.

Thus, k = 6.

The percentage of these funds are expected to be within ±6 standard deviations of the mean is:

\($$1 - \frac{1}{k^2} = 1 - \frac{1}{6^2} = 1 - \frac{1}{36} = 0.9722$$\)

Therefore, the percentage of these funds are expected to be within ±6 standard deviations of the mean is 97.22% (approx).

Hence, the required answer is 97.22.

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a.The probability that Xˉ is less than 49 is 0.0228.b.The probability that X is above 50.9 is 0.0359.c.The probability that X is above 50.9 is 0.0359.d.There is a 35% chance that Xˉ is above 50.01925.

a. What is the probability that Xˉ is less than 49 ?The given μ=50 and σ=5. We have a sample of n=100. The Central Limit Theorem states that the sampling distribution of the sample mean is normal, mean μ and standard deviation σ/sqrt(n).

So the mean of the sampling distribution of the sample mean is 50 and the standard deviation is 5/10=0.5. To find P( X <49) we need to standardize the variable.  z=(x-μ)/σz=(49-50)/0.5=-2P( X <49)= P(z < -2)P(z < -2)= 0.0228Therefore, the probability that Xˉ is less than 49 is 0.0228.

b.Using the mean of the sampling distribution of the sample mean 50 and the standard deviation 0.5, let’s calculate the standardized z-scores for 49 and 51.5. z1=(49-50)/0.5=-2 and z2=(51.5-50)/0.5=1P(49< X <51.5)=P(-250.9)= P(z > 1.8)P(z > 1.8)= 0.0359.

c.Therefore, the probability that X is above 50.9 is 0.0359.

d.We want to find the value of Xˉ such that P(Xˉ > x) = 0.35.Using the standard normal distribution table, the z-score that corresponds to 0.35 is 0.385. Therefore,0.385 = (x - μ) / (σ/√n)0.385 = (x - 50) / (0.5/10)We can solve for x.0.385 = 20(x - 50)0.385/20 = x - 50x = 50 + 0.01925x = 50.01925Therefore, there is a 35% chance that Xˉ is above 50.01925.

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Answer:

1,562.85

Step-by-step explanation:

34.5 times 45.3

Answer:

1562.85 ft^2

Step-by-step explanation:

area is L x W

plug in 34.5 and 45.3

34.5 x 45.3 = 1562.85

thus, our final answer is 1562.85

For a random day with the standard deviation, the probability that there are less than 300 shoppers on a random day, is 0.00585.

Probability is a measure of the likelihood that an event will occur.

The average total number of shoppers on a grocery store in 1 day is 505; the standard deviation is 115.

Let, X be the random variable denoting the number of shoppers on a random day.

Then, X follows normal with mean 505 and standard deviation of 115.

Then, we can say that,

Z=(X-505)/115 follows standard normal with mean 0 and standard deviation of 1.

We have to find

P (250 <X< 450)

= P {(250-505)/155} < Z < {(450-505)/155}

= P (-1.64 <Z< -0.03)

Where, Z is the standard normal variate.

ρ = -1.64 <ρ< -0.03

Where, ρ is the distribution function of the standard normal variate.

From the standard normal table, this becomes

=0.00585

For a random day, the probability that there are less than 300 shoppers on a random day, is 0.00585.

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The solution to the given system of equations is x = 2, y = -1, and z = 1.

To solve the system of equations, we can use methods such as substitution or elimination. Here, we will use the method of elimination to find the values of x, y, and z.

First, let's eliminate the variable x by multiplying equation (1) by 2 and equation (3) by -1. This gives us:

2x + 4y - 2z = -6 (4)

-x + y - z = -4 (5)

Next, we can subtract equation (5) from equation (4) to eliminate the variable x:

5y - z = 2 (6)

Now, we have a system of two equations with two variables. Let's eliminate the variable z by multiplying equation (2) by 2 and equation (6) by 1. This gives us:

4x - 2y + 2z = 10 (7)

5y - z = 2 (8)

Adding equation (7) and equation (8), we can eliminate the variable z:

4x + 5y = 12 (9)

From equation (6), we can express z in terms of y:

z = 5y - 2 (10)

Now, we have a system of two equations with two variables again. Let's substitute equation (10) into equation (1):

x + 2y - (5y - 2) = -3

x - 3y + 2 = -3

x - 3y = -5 (11)

From equations (9) and (11), we can solve for x and y:

4x + 5y = 12 (9)

x - 3y = -5 (11)

By solving this system of equations, we find x = 2 and y = -1. Substituting these values into equation (10), we can solve for z:

z = 5(-1) - 2

z = -5 - 2

z = -7

Therefore, the solution to the given system of equations is x = 2, y = -1, and z = -7.

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Using the given information, the solution for triangle ABC is as follows: Side lengths: a = 3.0, b = 4.0. Angle measures: ∠A ≈ 36.9°, ∠B ≈ 54°, ∠C = 90°

To solve triangle ABC, we have the following information:

Side lengths: a = 3.0, b = 4.0

Angle measures: ∠C = 54°

Other angle measures: ∠A = ∠B = ∠C = 90°

Finding ∠A and ∠B:

Since ∠C = 90°, the remaining angles ∠A and ∠B must sum up to 90°. Therefore, ∠A + ∠B = 90° - 54° = 36°.

Using the Law of Sines:

Applying the Law of Sines, we can find the remaining angles:

sin ∠A / a = sin ∠C / c

sin ∠A / 3.0 = sin 54° / c

c ≈ 3.8

sin ∠B / b = sin ∠C / c

sin ∠B / 4.0 = sin 54° / 3.8

∠B ≈ 54°

Hence, we have:

∠A ≈ 36.9°

∠B ≈ 54°

∠C = 90°

By substituting these values, we have found the solution for triangle ABC.

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The person may have driven at different speeds during different parts of the trip (such as 50 km/hour on the way to Denver and 100 km/hour on the way back), the average speed over the entire trip is 40 km/hour.

The average speed for a round trip is calculated by dividing the total distance travelled by the total time taken.

In this case, the person travelled 50 km from Boulder to Denver and another 50 km back from Denver to Boulder, for a total of 100 km. The time taken for the round trip was 1 hour to drive from Boulder to Denver, 1 hour spent in Denver, and 0.5 hours to drive back from Denver to Boulder, for a total of 2.5 hours.

Using these values, we can calculate the average speed for the round trip as 40 km/hour. This means that on average, the person travelled at a speed of 40 kilometers per hour during the entire round trip. Although the person may have driven at different speeds during different parts of the trip (such as 50 km/hour on the way to Denver and 100 km/hour on the way back), the average speed over the entire trip is 40 km/hour.

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Answer:

=x³-x

=x(x²-1)

=x(x²-1²)

=x(x+1)(x-1)

hope it helps.

Answer:

X=-5

Step-by-step explanation:

Answer:

Step-by-step explanation: x-5 i think

This value represents the present worth below which the probability is 0.5, indicating a negative present worth.

To estimate the probability that the present worth is negative using the NORM.INV function in Excel,

we need to calculate the present worth of the project and then determine the corresponding probability using the normal distribution.

The present worth of the project can be calculated by finding the sum of the present values of the annual receipts over the 10-year period, minus the initial investment. The present value of each annual receipt can be calculated by discounting it back to the present using the minimum attractive rate of return (MARR).

Using the given information, the present value of the initial investment is $10,000. The present value of each annual receipt is calculated by dividing the expected return of $1,800 by \((1+MARR)^t\),

where t is the year. We then sum up these present values for each year.

We can use the NORM.INV function in Excel to estimate the probability of a negative present worth. The function requires the probability value, mean, and standard deviation as inputs.

Since we have a mean and standard deviation for the present worth,

we can calculate the corresponding probability of a negative present worth using NORM.INV.

This value represents the present worth below which the probability is 0.5. By using the NORM.INV function,

we can estimate the probability that the present worth is negative based on the given data and assumptions.

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The stretch of an exponential decay function is y = 2(1/5)ˣ

From the question, we have the following parameters that can be used in our computation:

The list of exponential functions

An exponential function is represented as

y = abˣ

Where

In this case, the exponential function is a decay function

This means that

The value of b is less than 1

An example of this is, from the list of option is

y = 2(1/5)ˣ

Hence, the exponential decay function is y = 2(1/5)ˣ

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Complete question

Which is a stretch of an exponential decay function?

Of(x) = -(5)ˣ

Of(x) = 5(2)ˣ

O fix) = 2(1/5)ˣ

The value of x in the line is 0.5 units and the value of y is 1.7 units.

The length of the lines are indicated on the diagram. The line below is bisected into two equal halves.

Therefore, let's find the value of x in the line segments.

5x + 8 = 21x

5x - 21x = -8

-16x = -8

divide both sides of the equation by -16

x = -8 / -16

x = 1 / 2

Therefore, let's find the value of y in the line segments.

20y - 2 = 17y + 3

20y - 17y = 3 + 2

3y = 5

divide both sides of the equation by 3

y = 5 / 3

y = 5 / 3 = 1.66666666667 = 1.7

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Number of hours that would take older pump to drain the pool working alone is 3 hours

Let's say the time it takes the newer pump to drain the pool alone is "x" hours.

Then, the time it takes the older pump to drain the pool alone is "2x" hours, since it takes the older pump times as long as the newer pump.

Working together, they can drain the pool in 1 hour, so their combined rate is 1 pool/hour. Using the formula for work rate

Rate of newer pump + Rate of older pump = Combined rate of both pumps

1/x + 1/2x = 1/1

Multiplying both sides by 2x, we get

2 + 1 = 2x

3 = 2x

x = 3/2

So the newer pump can drain the pool alone in 3/2 hours, or 1 hour and 30 minutes.

To find out how long it takes the older pump to drain the pool alone, we use the value we got for x

2x = 2(3/2) = 3 hours

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If the domain of f is ( -1, 1), then the function g defined by g(x) = f((x + 1)/(x - 1)) has a domain of; (-2, 0)

The domain of a function refers to the set of all possible intput values that make the function possible.

Now, we are given the function;

g(x) = f((x + 1)/(x - 1))

The domain would be a set of real numbers excluding 1 because at x = 1, the function is undefined.

Since the domain of  f(x)  is  -1 < x < 1  ,

Then the domain of  f(x + 1)  is  -1 < x + 1 < 1 .

domain of -1 < x + 1 < 1  will simplify to -2 < x < 0

Thus, we can say that the domain of  f(x + 1)  is  (-2, 0).

Thus;

g(x) = f(x + 1) and as such, the domain of  g(x)  is  (-2, 0) .

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Answer:

it is the first one because you would be deciding by 2

Answer:

I think its 600 bc u multiply 20 by 30 cms to get the volume.

Step-by-step explanation:

Answer:

y - intercept = 0 [(0,0)]

Step-by-step explanation:

Given the equation y - 2.30 = 1.15(x-2), the y-intercept is when x is 0.

So to find your answer, just substitute in 0 for x, and solve for y:

y - 2.30 = 1.15(x - 2) →

x = 0

y - 2.30 = 1.15(0 - 2) →

y - 2.30 = 1.15(-2)

y - 2.30 = -2.30 →

+2.30 +2.30

y = 0

Step-by-step explanation:

a=1/2, r=9/8÷3/4

=3/2

Tn=ar^n

Answer:

\(x_{0} = \frac{1}{2}\)

\(x_{n} = x_{n-1} *(\frac{3}{2} )\)

Step-by-step explanation:

Answer:

Triangle ABC and Triangle JLK

Step-by-step explanation:

For Triangle ABC the 8 and 10 are both on the same if you turn Triangle JLK over clock wise it will be the same and plus both insides are 20 degrees. While the other Triangles have their 8 and 10 on other sides.

Answer:

1:4

Step-by-step explanation:

Thats it

Answer:1/4

Step-by-step explanation:

Answer:

4 3/8 cups

Step-by-step explanation:

Answer:

4 and 3/8 cups

Step-by-step explanation:

1 and 3/4 times 2 and 1/2

1 and 3/4 as a mixed number is 7/4 (4 x 1 = 4 + 3 = 7) (keep denominator)

2 and 1/2 as a mixed number is 5/2 (2 x 2 = 4 + 1 = 5) (keep denominator)

7/4 x 5/2 = 35/8

8 will go into 35 4 times. When you subtract 35-32, you have 3 left over and keep the denominator of 8. So, the answer is 4 and 3/8.

The conditional proportions of people using their phones in the afternoon and the evening can be summarized as follows: A significant proportion of individuals use their phones both in the afternoon and evening, indicating a consistent pattern of phone usage throughout the day.

In the afternoon, many people rely on their phones for various purposes such as work, communication, entertainment, and staying connected to social media. With the advancements in technology and increased accessibility to smartphones, it has become common for individuals to utilize their phones during this time. Whether it's checking emails, browsing the internet, or engaging in social media activities, the afternoon serves as a convenient time for phone usage.

Moving on to the evening, phone usage remains prevalent as individuals unwind and engage in leisure activities. During this time, people often use their phones for entertainment purposes, such as streaming videos, playing games, or engaging in social interactions through messaging apps or social media platforms. The evening also offers a time for catching up on news, reading, or engaging in personal hobbies, which may involve the use of mobile devices.

Overall, the conditional proportions reveal that phone usage is not limited to a specific time of day but rather extends throughout the afternoon and evening. This emphasizes the significant role that smartphones play in our daily lives, providing us with a range of functionalities and opportunities for connectivity and entertainment.

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Alessandra's statement corresponds to the alternative hypothesis (c) in a hypothesis test, suggesting a change or effect of the independent variable on the dependent variable.

The statement made by Alessandra regarding a hypothesis test suggests the use of an alternative hypothesis (c). In hypothesis testing, the alternative hypothesis represents the claim or belief that there will be a change or effect on the dependent variable due to the independent variable. It opposes the null hypothesis, which assumes no change or effect. In this case, Alessandra is proposing that there will be a difference or relationship between the independent and dependent variables.

To further elaborate, a hypothesis test is a statistical method used to make inferences about a population based on sample data. It involves formulating a null hypothesis (b), which assumes no significant difference or relationship between variables, and an alternative hypothesis (c), which asserts that there is a significant difference or relationship. The independent-measures t-test and repeated-measures t-test (d) are specific types of statistical tests used to compare means or differences between groups, but they are not directly related to the hypothesis statement provided by Alessandra.

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Answer:

Hey!

your answer is

7:15:9

Step-by-step explanation:

you can divide all of your original numbers by 8.

to double check, times the answer by 8

hope this helps

pls put brainliest

Answer:

(0,-5/3)  ( this is the best i could probably do sorry gurl)