Please help me with all I’ll mark you brainly

Answer:

5.0 if you love life

Step-by-step explanation:

Based on the sketch, it appears that the traffic flow in the city would remain the same during the hour. All of the vehicles entering the area would leave it, meaning that the same number of vehicles would remain in the area for the entire hour.

1. The sketch shows a maze of one-way streets in a city in the United States.

2. The traffic volume through certain blocks during an hour has been measured.

3. Suppose that the vehicles leaving the area during this hour were exactly the same as those entering it.

4. This means that the same number of vehicles would remain in the area for the entire hour, as the vehicles entering the area would be the same as those leaving it.

Based on the sketch, it appears that the traffic flow in the city would remain the same during the hour. All of the vehicles entering the area would leave it, meaning that the same number of vehicles would remain in the area for the entire hour.

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The 4th line plot picture correctly shows the data of the lengths of the sticks that were 3, 3, 4, 3, 3, 5, 4, 6, 5 and 4 inches.

A line plot is a graph that uses symbols to represent data above a frequency number line. It is used to arrange the data simply and is very simple to understand.

A line plot is a graphical representation of data on a number line which uses dots, crosses, or any other symbol. The scale of the graph is represented by each mark, which corresponds to a particular quantity.

The data on a number line can be graphically represented using symbols using a line plot graph. In contrast to a line graph, no cartesian plane or x and y axes are used in this data representation. Simple lines are drawn on a number line to represent a line plot graph.

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Full question:

Andre measured the lengths of 10 sticks to the nearest inch. the lenghts of the sticks were 3,3,4,3,3,5,4,6,5 and 4 inches. Click on the line plot that shows these data. Lengths of Sticks (in inches) Lengths of Sticks (in inches) Lengths of Sticks (in inches) Lengths of Sticks.

Answer: We can set up a system of equations to represent the given information:

Let x be the number of adult tickets sold

Let y be the number of student tickets sold

x + y = 56 (the total number of tickets sold is 56)

5x + 3y = 232 (the total amount of money made is 232 dollars)

To find the number of adult and student tickets sold, we can use the first equation to solve for one of the variables in terms of the other, and then substitute that into the second equation.

x + y = 56

x = 56 - y

Now we can substitute this value of x into the second equation:

5(56 - y) + 3y = 232

280 - 5y + 3y = 232

280 = 8y

y = 35

So, 35 student tickets were sold, and 56 - 35 = 21 adult tickets were sold.

Step-by-step explanation:

The tall of the building is 175m and the baseball strikes the ground in 4.53 seconds, 195 ft/s.

Assume that the acceleration due to gravity is 10m/s2.  

The equation for the ball’s velocity in the downward direction is

v(t) = at + v₀.

Here

v₀=10m/s a=10m/s² v(t)=60m/s

Solving this for  t we get the:  

[tex]t =\frac{60m/s-10m/s}{10m/s^2}\\ \\t=\frac{50m/s}{10m/s^2}\\[/tex]

t=5s

The total distance traveled will be  

[tex]x(t)=\frac{1}{2} at^2+v_{0} +x_{0}[/tex]

Here x₀ = 0 and we get:

[tex]x(t)=\frac{1}{2} (10m/s^2)(5s)^2+(10m/s)(5s)[/tex]

x=125m+50m

x=175m

The given values are:

u = 50 ft/s

h = 555 ft

g = 32 ft/s²

Let the time taken by the ball to reach the ground be t and the velocity of the ball as it hits the ground be v.

Use the third equation of motion

v²=u²+2as

v²=50²+2*32*555

v = 195 ft /s

Thus, the ball strikes the ground with a velocity of 195 ft/s.

Use the first equation of motion

v = u + at

195 = 50 + 32 t

32 t = 145

t = 4.53 second

Thus, the ball reaches the ground in 4.53 seconds.

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Two straightforward equations are all that are left for us to solve. Therefore, the x and y values determine the coordinates of the orthocenter.

When two rays or straight lines intersect at a single endpoint, an angle is created. The vertex of an angle is the location where two points meet. The Latin word "angulus," which means "corner," is where the term "angle" first appeared.

Its coordinates are determined using the orthocenter formula. Let's take a look at the triangle ABC in the illustration above. AD, BE, and CF are the perpendiculars that are drawn from the vertices A(x1,y1), B(x2,y2), and C(x3,y3), respectively. The three elevations come together at point O.

The slope of the triangle's sides must first be determined using the following formula:

m = y2 - y1/x2 - x1

The slope of the triangle ABC's altitudes will now be the line's perpendicular slope.

Line slope perpendicular to the plane is -1/m

Let mAC be the slope of the AC. Hence,

mAC = y3 - y1/x3 - x1

Similarly, mBC = (y3 - y2)/(x3 - x2)

Now, the corresponding altitudes' slopes are as follows:

BE slope: mBE = -1/mAC

AD slope: mAD = -1/mBC

Now, in order to determine the equations of the lines that coincide with BE and AD, we will use the slope point form equation of a straight line.

Hence,

mBE = (y - y2)/(x - x2)

mAD = (y - y1)/(x - x1)

As a result, we are left with two equations that are simple to answer. The orthocenter's coordinates are thus determined by the values of x and y.

The complete question is :

The orthocenter of a triangle is the point where the perpendicular drawn from the vertices to the opposite sides of the triangle intersect each other.

Take an example of a triangle ABC.

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Note that these points are not different from each other and are on the same line y = 5/3x - 2.

Any point on this line will have the coordinates (x, y) such that y = 5/3x - 2.

Generally, A point on a line is any place along that line that is represented by a set of coordinates in either two- or three-dimensional space, denoted by the letters x, y, or x, y, z, respectively.

An equation, such as y = mx + b, may be used to define a line in a mathematical context. In this equation, m refers to the slope, while b refers to the y-intercept.

Any point that can be made to fit into this equation is up for grabs.

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Answer:

It is not possible for the sum of consecutive integers to be -11. The sum of n consecutive integers is n times the average of the first and last integers. The average of any two integers is a fraction, which when multiplied by n, will always yield a fraction, which cannot equal -11. Therefore it is not possible to have n consecutive integers that sum to -11.

The probability of one defective compressor among the first 6 examined, the probability of four or more defective compressors among the first 6 examined, and the probability of 1 to 3 defective compressors among the first 6 examined are 0.1136, 0.1212, and 0.7955 respectively.

(a) .1136, .1212 and 0.7955 respectively.

(i) P(X=1) = C(5,1) / C(12,6) = 5/66 = 0.1136

(ii) P(X ≥ 4) = P(X = 4) + P(X = 5) + P(X = 6) = C(5,4) / C(12,6) + C(5,5) / C(12,6) + C(5,6) / C(12,6) = .1212

(iii) P(1≤X ≤3) = P(X = 1) + P(X = 2) + P(X = 3) = C(5,1) / C(12,6) + C(5,2) / C(12,6) + C(5,3) / C(12,6) = 0.7955

The probability of one defective compressor among the first 6 examined is P(X = 1) = C(5,1) / C(12,6) = 5/66 = 0.1136. The probability of four or more defective compressors among the first 6 examined is P(X ≥ 4) = P(X = 4) + P(X = 5) + P(X = 6) = C(5,4) / C(12,6) + C(5,5) / C(12,6) + C(5,6) / C(12,6) = .1212. The probability of 1 to 3 defective compressors among the first 6 examined is P(1≤X ≤3) = P(X = 1) + P(X = 2) + P(X = 3) = C(5,1) / C(12,6) + C(5,2) / C(12,6) + C(5,3) / C(12,6) = 0.7955.

Therefore, the probability of one defective compressor among the first 6 examined, the probability of four or more defective compressors among the first 6 examined, and the probability of 1 to 3 defective compressors among the first 6 examined are 0.1136, 0.1212, and 0.7955 respectively.

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The distribution of the histogram for the large packages colors is given as follows:

Right skewed.

The distribution depends on whichever of the mean or the median is greater, as follows:

Hence the distribution is defined as follows:

The ordered data-set is given as follows:

21, 21, 24, 30, 32, 86.

The median is the mean of the two-middle values, hence:

Median = (24 + 30)/2

Median = 27.

The mean is the sum of all the observations divided by the number of observations, hence:

Mean = (21 + 21 + 24 + 30 + 32 + 86)/6

Mean = 35.67.

Mean > median, hence the distribution is right skewed.

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Angles of similar triangles are always congruent a: 63, b: 88, c: 29 and x = 53.75

Based on the information available, there are numerous equations for calculating the area of a triangle. As indicated in the calculator above, please use the Triangle formula for additional information and equations for calculating the area of a triangle as well as determining the sides of a triangle using whatever information is available.

find the ratio between the two triangles:

40 on the left corresponds to 50 on the right = 40/50 = 43/x

to find x:

40x = 43 × 50

40x = 215

x = 215/40

x = 53.75

"angles of similar triangles are always congruent."

a: 63

b: 88

c: 29

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Full question:

Given a pair of similar triangles, find the missing length x and the missing angles A, B, and C.

The following statements are true: if augmented matrices of two linear systems are row equivalent, the systems have the same solution set; two matrices are called row equivalent if one matrix can be transformed into another by applying a sequence of elementary row operations; in an echelon form of a matrix, all entries in a column below the leading entry are zero; the reduced echelon form of a matrix is not defined uniquely.

The row replacement operation, when performed on a matrix, results in interchanging two rows. This statement is not true. Row replacement operations can also be used to add multiples of one row to another, it doesn't necessarily interchange two rows.

The statement "if augmented matrices of two linear systems are row equivalent, the systems have the same solution set." is true. Row equivalence is a property of matrices that describes how two matrices can be transformed into one another by performing elementary row operations. If two matrices are row equivalent, it means that they can be transformed into the same row echelon form, which implies that they have the same row space, and therefore the same solution set.

The statement "two matrices are called row equivalent if one matrix can be transformed into another by applying a sequence of elementary row operations." is true. Two matrices are row equivalent if one matrix can be transformed into another by applying a sequence of elementary row operations, such as row interchanges, row scaling, and row replacement.

The statement "in an echelon form of a matrix, all entries in a column below the leading entry are zero." is true. An echelon form of a matrix is a matrix that has the following properties: all non-zero rows are above any rows of all zeroes, the leading entry of a non-zero row is to the right of the leading entry of the row above it. In an echelon form of a matrix, all entries in a column below the leading entry are zero.

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Answer:

Step-by-step explanation:

Answer:

36/11 or 3.2727

Step-by-step explanation:

A unit rate is a rate with 1 in the denominator.

Since you didn't specify, I assume 6/11 per 1/6 rate.

Divide 6/11 by 1/6

[tex]\frac{6}{11} /\frac{1}{6}[/tex]

Multiply the reciprocal:

[tex]\frac{6}{11} *\frac{6}{1}=\frac{36}{11}[/tex]

This question involves the binomial probability distribution. The probability of exactly 2 successful outcomes (in this case, visitors who are looking for the website) in 5 trials (visitors to the website) can be calculated using the formula:

P(X = 2) = (5C2)(0.12)^2(0.88)^3

Where C represents the binomial coefficient and 0.12 and 0.88 represent the probability of a successful outcome (looking for the website) and unsuccessful outcome (not looking for the website), respectively.

Calculating this gives:

P(X = 2) = (5C2)(0.12)^2(0.88)^3 = 100.01440.4712 = 0.066

So the probability that, in a random sample of 5 visitors to the website, exactly 2 are looking for the website is 0.066 or about 6.6%.

The results of the ANOVA test may not be reliable.

The conditions that must be met for the results of an ANOVA test to be reliable are that the observations must be independent of each other and randomly selected from their populations (A). Additionally, the variances for each population must be approximately equal to each other (B). This can be tested with the F-test, which is calculated by dividing the variance of the sample means by the variance of the individual observations. This test is used to determine if the variability between the groups is greater than the variability within the groups. If the F-test returns a value greater than 1, then the variances are not equal and the results of the ANOVA test may not be reliable. Lastly, the populations from which each group is drawn must be approximately Normal (C). This can be tested with a Shapiro-Wilk test or a visual inspection of a histogram or qqplot. If the populations are not normally distributed, then the results of the ANOVA test may not be reliable. The hypothesized means of the populations from which each group is drawn must be approximately equal (D). This can be tested with a t-test or a confidence interval. If the means are significantly different, then the results of the ANOVA test may not be reliable.

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It is nominal because they all mean the same thing

65 percent of the number 240 is 156, as 25% and 90% of 240 will give 60 and 216 respectively.

We shall represent the number with the letter x so that we evaluate for the 25 and 90 percent respectively as follows:

25 percent of x;

25x/100 = 60

x = (60 × 100)/25 {make x the subject}

x = 240

90 percent of x;

90x/100 = 216

x = (216 × 100)/90 {make x the subject}

x = 240

Therefore, 65 percent of the number 240 is derived as:

(65 × 240)/100

15600/100

156.

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To determine the cost of 6 pencils at 60 cents a dozen, we need to convert the price per dozen to the price per pencil. We know that a dozen is equal to 12, so we can use the following formula:

Price per pencil = (Price per dozen) / (Number of items per dozen)

So, in this case:

Price per pencil = (60 cents) / (12 pencils)

To convert cents to dollars, we divide by 100.

Price per pencil = (60/100) $ = 0.6 $

To find the total cost for 6 pencils we multiply the price per pencil by the number of pencils

Cost of 6 pencils = 6 * 0.6 = 3.6 $

So the cost of 6 pencils at 60 cents a dozen is 3.6 $.

The converse of the Pythagorean Theorem states that if two sides of a triangle are congruent, then the angles opposite to them are also congruent. This property is known as the Corresponding Angles Postulate.

The Pythagorean Theorem states that the sum of the squares of the lengths of the two sides of a right triangle are equal to the square of the length of the hypotenuse. The theorem is written as a^2 + b^2 = c^2. The converse of the Pythagorean Theorem states that if two sides of a triangle are congruent, then the angles opposite to them are also congruent. This property is known as the Corresponding Angles Postulate.  To prove this postulate, we can start with an arbitrary triangle ABC. If we extend the side AC to D, then we can create a line parallel to BC, creating two similar triangles, ABC and ADC. Since similar triangles have corresponding angles that are congruent, then  angle A = angle D. Since side AC is congruent to side AD, then angle A is also congruent to angle B. This proves the Corresponding Angles Postulate.

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The method of midpoint rectangles is a numerical integration technique used to approximate the area under a curve.

It is based on the idea of breaking up the area under the curve into a series of rectangles and approximating the area of each rectangle using the midpoint of the interval.

For example,

Let's say we want to approximate the area under the curve f(x) = x^2 from x = 0 to x = 2 using the method of midpoint rectangles.

We divide the interval into n = 4 subintervals of width 0.5.

We can calculate the midpoints of the intervals as follows:

interval 1: (0,0.5)

interval 2: (0.5,1)

interval 3: (1,1.5)

interval 4: (1.5,2)

We find the height of each rectangle as the value of f(x) at the midpoint of the interval.

interval 1: f(0.25) = 0.25^2 = 0.0625

interval 2: f(0.75) = 0.75^2 = 0.5625

interval 3: f(1.25) = 1.25^2 = 1.5625

interval 4: f(1.75) = 1.75^2 = 3.0625

We multiply the width of each rectangle (0.5) by the height of each rectangle to find the area of each rectangle:

interval 1: 0.5 * 0.0625 = 0.03125

interval 2: 0.5 * 0.5625 = 0.28125

interval 3: 0.5 * 1.5625 = 0.78125

interval 4: 0.5 * 3.0625 = 1.53125

Finally, we add the areas of all the rectangles to find the total approximate area under the curve:

0.03125 + 0.28125 + 0.78125 + 1.53125 = 2.64375

Hence, using this method the area under the curve f(x) = x^2 from x = 0 to x = 2 is approximately 2.64375.

Note: The precision of the result will depend on how many rectangles you use, and how small you make the rectangles.

The more rectangles we use and the smaller width of each rectangle, the more accurate our result will be.

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The percentage increase in snakes from last year to this year at the Cincinnati Zoo is 20%.

The percentage increase refers to the ratio of the increase in the number of snakes in the zoo.

The percentage increase can be computed as the quotient of the amount of increase divided by the previous number of snakes, multiplied by 100.

The number of snakes in the zoo last year = 25

The number of snakes in the zoo currently = 30

The increase in the number of snakes = 5 (30 - 25)

The percentage increase = 20% (5/25 x 100)

Thus, we can conclude that the number of snakes in the Cincinnati Zoo has increased by 20 percent since last year.

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Answers:

90 ounces of solution A.

60 ounces of solution B.

====================================================

Explanation:

x = amount of solution A

150-x = amount of solution B

Each amount is in ounces and they add to 150 ounces.

Solution A is 35% salt, so we get 0.35x ounces of pure salt from solution A.

Solution B is 60% salt, so we get 0.60*(150-x) = 90-0.60x ounces of pure salt from solution B.

We want 150 ounces of 45% salt solution, which means we want 150*0.45 =  67.5 ounces of pure salt when everything is mixed.

Here's a table showing this info

[tex]\begin{array}{|c|c|c|} \cline{1-3}& \text{Mixture} & \text{Pure Salt}\\\cline{1-3}\text{Solution A} & \text{x} & 0.35\text{x}\\\cline{1-3}\text{Solution B} & 150-\text{x} & 0.60(150-\text{x}) = 90-0.60\text{x}\\\cline{1-3}\text{Total} & 150 & 150*0.45 = 67.5 \\\cline{1-3}\end{array}[/tex]

Cleaning up the table a bit shows

[tex]\begin{array}{|c|c|c|} \cline{1-3}& \text{Mixture} & \text{Pure Salt}\\\cline{1-3}\text{Solution A} & \text{x} & 0.35\text{x}\\\cline{1-3}\text{Solution B} & 150-\text{x} & 90-0.60\text{x}\\\cline{1-3}\text{Total} & 150 & 67.5 \\\cline{1-3}\end{array}[/tex]

Focus on the "pure salt" column.

We want the 0.35x and 90-0.60x to add to 67.5

So,

0.35x+(90-0.60x) = 67.5

90-0.25x = 67.5

-0.25x = 67.5-90

-0.25x = -22.5

x = -22.5/(-0.25)

x = 90

She must use 90 ounces of solution A.

150-x = 150-90 = 60 ounces of solution B must be used as well.

-------------------

Check:

35% of 90 = 0.35*90 = 31.5 ounces of pure salt comes from solution A.

60% of 60 = 0.60*60 = 36 ounces of pure salt comes from solution B.

31.5+36 = 67.5 ounces of pure salt in total, which matches with the value mentioned earlier. The answers are confirmed.

The probability of getting exactly 1 three, to the nearest thousandth is 0.347.

Binomial distribution is the distribution of a random variable X for which there are only two possibilities. The probability p for the success and the probability of 1-p for the failure, which consist of n trials.

The binomial distribution has the formula,

P(x) = ⁿCₓ pˣ (1-p)ⁿ⁻ˣ

where x : number of times for a specific outcome within n trials

p : probability of success in each trial

n : number of trials

Given that a fair die is rolled 3 times.

Here, n = 3, x = 1

p = probability of getting three for 1 trial = 1/6

1 - p = 1 - 1/6 = 5/6

P(1) = ³C₁ (1/6)¹ (5/6)³⁻¹

     = 0.347

Hence the probability of getting exactly 1 three is 0.347.

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The Lakewood Times had a 30.4% increase in the number of subscribers after it was bought out.

What is the percentage increase?

Percent increase is a way of measuring how much something has increased relative to its original value. It is expressed as a percentage, and it is calculated by taking the difference between the new value and the original value, and then dividing that difference by the original value, and then multiplying by 100.

Formula: % increase = (new value - original value) / original value x 100

To find the percent increase, you can use the formula:

% increase = (new value - old value) / old value x 100

In this case, the percent increase would be:

% increase = (6201 - 4770) / 4770 x 100 = 30.4%

Hence, The Lakewood Times had a 30.4% increase in the number of subscribers after it was bought out.

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Answer:

  10 yards

Step-by-step explanation:

You want the height of a cylinder of radius 3 yards that has a volume of 282.6 cubic yards, using pi = 3.14.

The volume of a cylinder is given by ...

  V = πr²h

Using the given values, this is ...

  282.6 yd³ = 3.14(3 yd)²·h = 28.26h yd²

Dividing by the coefficient of h, we find it to be ...

  h = (282.6 yd³)/(28.26 yd²) = 10 yd

The height of the cylinder is 10 yards.

a) To find the real and imaginary parts of a complex number, we can use the equation z = x + iy, where x is the real part and y is the imaginary part.

To sketch a stem plot, we need to plot the real part on the x-axis, and the imaginary part on the y-axis. For example, for the complex number z = 4 + 3i, the real part is x = 4 and the imaginary part is y = 3. Therefore, the stem plot would be (4, 3).

b) To find the magnitude and phase of a complex number, we can use the equation z = |z|e^(iθ), where |z| is the magnitude and θ is the phase. To sketch a stem plot, we need to plot the magnitude on the x-axis, and the phase on the y-axis. For example, for the complex number z = 4 + 3i, the magnitude is |z| = 5 and the phase is θ = arctan(3/4). Therefore, the stem plot would be (5, arctan(3/4)).

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Answer:C. Approx. Normal

Step-by-step explanation:

There are two vertical angles created by the intersection of two lines.

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