Please help will give brainliest

Answer:

28 more people to reach 450

Step-by-step explanation:

450/7≈65(the total number of money the need divided by ticket price to see how many total people they need)

37*7=259 (the people they have already gotten times ticket price to find how much more they need)

450-259= 191 (what they need altogether miinus what they already have)

191/7≈28 (how much more money they need divided by ticket price, 28 is more ticket they need to sell)

does this make sense

For the given mean and the number of items, the database B has smaller value of the standard deviation compare to database A.

As given in the question,

For data base A:

Number of items = 40

Mean of database A = 50

Values of database A spread between 0 to 100

For data base B:

Number of items = 40

Mean of database B = 50

Values of database B spread between 49 to 51

Standard deviation of data base

= √ (1/40)[ (x₁ - 50)² + (x₂- 50)² + (x₃ - 50)² + ......+ (xₙ - 50)² ]

Here mean and number of items of both the data base is same.

Therefore, the standard deviation of data base B is having smaller value compare to data base A.

The above question is incomplete , the complete question is :

Database A contains 40 data items and is made up with an equal number of the values of 0 and 100 and has a mean of 50. Database B also has 40 entries made up equally of the values 49 and51 and also has a mean of 50. Which database will have the smaller value for its standard deviation?

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Therefore, visually interpreting histograms can be a powerful tool for data analysis, but it is important to be aware of their strengths and limitations.

Histograms are an effective way to display data graphically. They are used to show how often certain values or ranges of values appear in a data set. Visual interpretation of histograms has many strengths and limitations. Some of the strengths of visually interpreting histograms are that they are easy to read and understand, they provide a clear picture of how the data is distributed, and they can help identify outliers or gaps in the data. However, some of the limitations of visually interpreting histograms are that they can be influenced by the number of bins chosen, the way the data is grouped, and the choice of the scale used. Therefore, it is important to carefully consider these factors when interpreting a histogram. In conclusion, visually interpreting histograms can be a powerful tool for data analysis, but it is important to be aware of their strengths and limitations.

Therefore, visually interpreting histograms can be a powerful tool for data analysis, but it is important to be aware of their strengths and limitations.

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The mean, standard deviation, and standard error of the mean for the sample of high school seniors intending to attend the state university are as follows: The mean is 0.89, the standard deviation is 0.031, and the standard error of the mean is 0.006.

The mean is the average proportion of high school seniors intending to attend the state university, which is calculated by summing up all the proportions and dividing by the sample size. In this case, the proportion answering "yes" is given as 0.89, so the mean is also 0.89.

The standard deviation measures the spread or variability of the data. It indicates how much the proportions in the sample deviate from the mean. To calculate the standard deviation, the individual proportions are subtracted from the mean, squared, and then averaged. The square root of this average is taken to obtain the standard deviation. In this case, the standard deviation is approximately 0.031.

The standard error of the mean measures the precision of the sample mean as an estimate of the population mean. It represents the average amount by which the sample mean differs from the true population mean. The standard error is calculated by dividing the standard deviation by the square root of the sample size. In this case, the standard error of the mean is approximately 0.006.

The mean proportion of high school seniors intending to attend the state university is 0.89. The standard deviation is approximately 0.031, indicating some variability in the data. The standard error of the mean is approximately 0.006, reflecting the precision of the sample mean as an estimate of the population mean.

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Answer:

Ok its friday be happy

Step-by-step explanation:

The cubic meters of air does the balloon lose per minute is 100 m³/min . And rate of change derived from the given question is 100 cubic meters.

Let us proceed and start by  denoting  the rate of alteration of volume of air in the balloon as r.

Given from the question one of the balloons loses 300 cubic meters of air every period of 3 min.

the rate of alteration of volume of air in balloon is -300/3 = -100 m³/min

After an interval of 10 minutes, the balloon has 500 m³ of air.

Let us consider x then

x = Vo + r x t  

where,

Vo = initial volume of air in the balloon

t =  time in minutes.

y = Vo+ r x t

500 = Vo + (-100) x 10

500 = Vo - 1000

Vo = 1500

Therefore, the initial volume of air in balloon was 1500 m³.

Given the balloons loses -100 m³/min.

then, it loses 100 m³/min .

The cubic meters of air does the balloon lose per minute is 100 m³/min . And rate of change derived from the given question is 100 cubic meters.

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Given figure is a parallelogram

To Find

Value of"x"

\(m \angle \: A = m \angle \: C\)

\(2x + 35 = 5x - 22\)

\( \implies 2x - 5x = - 22 - 35 \div \\ \implies - 3x = - 57 \\ \\ \implies x = \frac{ - 57}{ - 3} \\ \\ \implies x = \cancel\frac{ - 57}{ - 3} \\ \\ \implies x = 19\)

\(\therefore \text{Option C= 19 is the correct answer}\)

The greatest common factor of the expression 2ax² + 2ax + 2a is 2a.

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

Example: 2 + 3x + 4y = 7 is an expression.

We have,

2ax² + 2ax + 2a

There are three terms.

The greatest common factor in each term is 2a

Now,

2a (x² + x + 1)

Thus,

The expression with the greatest common factor is 2a (x² + x + 1).

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Answer: The value of x is 5.970.

Step-by-step explanation:

Given: The square has sides length of X cm.

Let r be the radius of the circle.

The square fits exactly inside a circle with each of the vertices being on the circumference of the circle.

Then diagonal of square = diameter of circle

i.e. \(\sqrt{2}x= 2r\)    [Diagonal of square = \(\sqrt{2}\)(side)]

i.e. \(r=\dfrac{x}{\sqrt{2}}\)

area of circle =\(\pi r^2\)

i.e. \(56=\frac{22}{7}(\frac{x}{\sqrt{2}})^2\)

\(56=\frac{22}{7}\times\frac{x^2}{2}\\\\\Rightarrow\ x^2= \dfrac{7}{11}\times56\\\\\Rightarrow\ x^2=35.636\\\\\Rightarrow\ x=\sqrt{35.636}\approx5.970\)

Hence, the value of x is 5.970.

Random Sampling will be able to calculate the average value of a population without statistical error.

Each sample has an equal chance of being chosen when using the sampling technique known as random sampling.

When there is little chance of data manipulation, systematic sampling is employed.

A census is a study of every element, person, or aspect of the population.

When a population is divided into clusters, a sample is chosen at random from within each cluster. This process is known as cluster sampling.

Hence, we use Random sampling for not getting statistical errors.

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Answer:

it should be the negative repirocal of -2 so 1/2

Answer:

mPerpendicular= 1/2

Step-by-step explanation:

The triangles AEB and DEC describes AA similarity .

What is AA Similarity ?

Two triangles are said to be congruent by AA Similarity when two angles in one triangle are congruent to two angles in another triangle .

In the question ,

a figure is given .

in triangle AEB and triangle DEC ,

we can see that ,

∠AEB ≅ ∠DEC    ,   because they are vertically opposite angles .

On rotating triangle CED by  180° around the point E, then the translate point D to point A confirms  ∠EAB ≅ ∠EDC.

Since two angles are Congruent

So , By AA Similarity , triangles AEB and DEC are Congruent .

Therefore , the triangles AEB and DEC are Congruent .

The given question is incomplete , the complete question is

Which of the following triangles in the given figure describes AA similarity ?

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Answer:

length: 17 yd

width: 13 yd

Step-by-step explanation:

Let the width of the rectangle be x. This means the length will be x+4.

In this rectangle, 2 of the sides are x, and 2 are x+4.

If all the sides add up to 60, then we can make an equation: x+x+x+4+x+4=60

Simplify the equation to get 4x+8=60

Subtract 8 from both sides to get 4x=52

Divide both sides by 4 to get x=13

x is the width, so we know the width is 13.

The length is 4 more than the width, so we can add 4 to 13 and get 17.

The length is 17.

Answer:

C. Uniform circular motion is when a object travels on a circular path at a constant speed.

Answer: 1. X=4

2. X=12

3. X=5

4. B=1

Step-by-step explanation:

The Mitchells should report a total of $700 as dividend income on their joint return for Year 4.

Only the dividends received from Alert Corporation, a qualified domestic corporation, and Canadian Mines, Inc., a corporation incorporated in Canada, are taxable. The dividend from Eternal Life Mutual Insurance Company is not taxable since it is a dividend on a life insurance policy and the total dividends received on the policy do not exceed the cumulative premiums paid.

Therefore, the taxable dividends are $400 + $300 = $700.

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Answer:

it's base times height or it can be the width of the shape

Answer:

it not clear maybe you can take an other pohto

sorry

Step-by-step explanation:

The factors of the function, g(x) = x³ + 2x² - x - 2 is, C. (x - 1)(x + 1)(x + 2).

We know that if x = a is one of the roots of a given polynomial x - a = 0 is a factor of the given polynomial.

To confirm if x - a = 0 is a factor of a polynomial we replace f(x) with f(a) and if the remainder is zero then it is confirmed that x - a = 0 is a factor.

Given, A cubic polynomial, g(x) = x³ + 2x² - x - 2.

Now, From the options if (x - 2) is a factor then x - 2 = 0, x = 2 ⇒ g(2) = 0.

g(2) = 2³ + 2.2² - 2 - 2.

g(2) = 8 + 8 - 2 - 2.

g(2) = 12, So x - 2 is not a factor.

Let, x + 2 = 0, x = - 2.

g(-2) = - 8 + 8 = 2 - 2.

g(-2) = 0, So, x + 2 is a factor, And we know a cubic polynomial has three factors.

Therefore, g(x) = x³ + 2x² - x - 2 = (x - 1)(x + 1)(x + 2).

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Answer:

-12 percent

Step-by-step explanation:

Where: 75 is the old value and 66 is the new value. In this case we have a negative change (decrease) of -12 percent because the new value is smaller than the old value.

A neural network is a complicated set of possibly nonlinear equations. There are at least two degrees to a nonlinear equation.

This means that a variable in the equation can only be raised to the power of two or higher. A linear equation is typically represented as y = mx + c, where x and y are variables, m is the line's slope, and c is a constant. A nonlinear equation is one in which the highest degree of any term is two or greater. Since equation 1 has the highest degree of 2, and equation 2 involves variables x and y, this is an example of a nonlinear equation. + 2x + 1 = 0, 3x + 4y = 5, etc.

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Answer:

3.25

Step-by-step explanation:

Answer: 44%

Step-by-step explanation:

Let us assume there were 100 students.

Now, 26% means 26 students have chosen biology, and 18% means 18 students have chosen botany.

Now total number of students who have chosen biology or botany = 44

P(the student has chosen biology or botany as subject for project) = 44/100

Answer:

5

Step-by-step explanation:

-2^2=-4

3^2=9

add

-4+9=5

Answer:

4

Step-by-step explanation:

Answer:

20

Step-by-step explanation:

12+4 x 2

12+8= 20

Answer:

Choice B, 90

Step-by-step explanation:

(1)The value of a_ is approximately 1.3634 m/s. (2)The value of v is approximately 0.0792 m/s. (3)The value of a is approximately 31.09 m^2/kg.

To evaluate the given expressions, we'll perform the calculations step by step:

1. Evaluating a_ = (12.1s - 8.73s) / (7.38s/m - 4.91s/m) / 3.63s^2/m / 0.733s^2/m / -1.76s^2/m / -8.53s^2/m

First, we simplify the numerator and denominator separately:

Numerator: 12.1s - 8.73s = 3.37s

Denominator: 7.38s/m - 4.91s/m = 2.47s/m

Now we can calculate the result:

a_ = (3.37s) / (2.47s/m) / 3.63s^2/m / 0.733s^2/m / -1.76s^2/m / -8.53s^2/m

Dividing the numerator by the denominator:

a_ = (3.37s) / (2.47s/m) = 1.3634 m/s

Therefore, the value of a_ is approximately 1.3634 m/s.

2. Evaluating v = (t1 + t2) / (d1 + d2)

Given:

d1 = 173.0 km

d2 = 35.1 km

t1 = 243.0 min

t2 = 31.7 min

Converting the distances to meters:

d1 = 173.0 km * 1000 m/km = 173000 m

d2 = 35.1 km * 1000 m/km = 35100 m

Converting the times to seconds:

t1 = 243.0 min * 60 s/min = 14580 s

t2 = 31.7 min * 60 s/min = 1902 s

Now we can calculate the result:

v = (14580 s + 1902 s) / (173000 m + 35100 m)

Simplifying the numerator and denominator:

v = 16482 s / 208100 m

Dividing the numerator by the denominator:

v = 0.0792 m/s

Therefore, the value of v is approximately 0.0792 m/s.

3. Evaluating a = (9.12 × 10^(-2) kg) / [4 × (7.34 × 10^(-4) s^2/kgm^2)] / 3.22 × 10^2 s^2/m / 3.22 × 10^(-6) s^2/m / 3.22 s^2/m / 3.22 × 10^(-2) s^2/m

First, let's simplify the numerator and denominator:

Numerator: 9.12 × 10^(-2) kg = 0.0912 kg

Denominator: 4 × (7.34 × 10^(-4) s^2/kgm^2) = 2.936 × 10^(-3) s^2/kgm^2

Now we can calculate the result:

a = (0.0912 kg) / (2.936 × 10^(-3) s^2/kgm^2) / (3.22 × 10^2 s^2/m) / (3.22 × 10^(-6) s^2/m) / (3.22 s^2/m) / (3.22 × 10^

(-2) s^2/m)

Dividing the numerator by the denominator:

a = (0.0912 kg) / (2.936 × 10^(-3) s^2/kgm^2) = 31.09 m^2/kg

Therefore, the value of a is approximately 31.09 m^2/kg.

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