Example and or statements in statistics are logic statements used in statistics to describe the probability of events occurring together (and) or separately (or)."
The "and" statement is used to describe the probability of two or more events occurring together (to calculate the joint probability of multiple events).
For example, the probability of rolling a 4 on a fair die and flipping a head on a fair coin is,
P(rolling a 4 AND flipping a head) = P(4) x P(head)
=(1/6) x (1/2) = 1/12 = P(A)
The "or" statement is used to describe the probability of one or more events occurring (to calculate the probability of at least one event).
For example, the probability of rolling a 4 on a fair die or flipping a head on a fair coin is,
P(rolling a 4 OR flipping a head) = P(4) + P(head) - P(A)
= (1/6) + (1/2) - (1/12) = 7/12
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How do you divide fractions with a whole number for dummies?
Even though dividing a fraction by a whole number might be challenging, it is simple to achieve with a few steps. By placing the full number above 1, you must first divide it into a fraction. After that, multiply the fraction you are dividing by the inverted version of the fraction. Lastly, simplify the response as much as possible.
For instance, to multiply 3/4 by 2:
Put 2 over 1, making it 2/1, to make it a fraction.
To get 1/2, invert 2/1.
To get 3/8, multiply 3/4 by 1/2.
Divide the numerator and denominator by 3 to get 1/4, which is the simplest representation of the fraction 3/8.
Hence, 1/4 is equivalent to 3/4 when divided by 2.
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What's the domain of this function graph? please help!!!!!!!!!
Answer:
The domains are (1,4,9) Ranges are (-1,-2,-3)
Step-by-step explanation:
The domain is on the x-axis and the range is on the y-axis
Which graph represents x > (y – 2)2 – 4? On a coordinate plane, a parabola opens up and goes through (0, 0), has a vertex at (2, negative 4), and goes through (4, 0). Everything outside of the parabola is shaded. On a coordinate plane, a parabola opens up and goes through (0, 0), has a vertex at (2, negative 4), and goes through (4, 0). Everything inside of the parabola is shaded. On a coordinate plane, a parabola opens to the right and goes through (0, 4), has a vertex at (negative 4, 2), and goes through (0, 0). Everything inside of the parabola is shaded. On a coordinate plane, a parabola opens to the right and goes through (0, 4), has a vertex at (negative 4, 2), and goes through (0, 0). Everything outside of the parabola is shaded.
The given inequality is x > (y – 2)2 – 4. To graph this inequality, we first need to plot the vertex of the parabola, which is (2, -4). This point is included in the shaded region because the inequality is "greater than" and not "greater than or equal to". Next, we need to determine whether the parabola opens upward or downward. Since the coefficient of the squared term is positive, the parabola opens upward.
Now, we need to decide which side of the parabola to shade. To do this, we can choose a test point that is not on the parabola and substitute its coordinates into the inequality. For example, the point (0,0) is a convenient test point. Substituting x=0 and y=0 into the inequality, we get:
0 > (0 – 2)2 – 4
0 > 0
Since 0 is not greater than 0, the point (0,0) is not in the shaded region. Therefore, we need to shade the side of the parabola that does not contain the point (0,0).
Among the given options, only the first one matches the graph described above. Therefore, the answer is: the graph that represents x > (y – 2)2 – 4 is the one where a parabola opens up and goes through (0, 0), has a vertex at (2, -4), and everything outside of the parabola is shaded.
A ∩ ∅ = A. true or false
What types of earned and unearned income do you think you'll have in 10 years?
Unearned income may vary depending on investment performance, interest rates, and changes in government policies.
What is Income?Income is the consumption and saving opportunity gained by an entity within a specified timeframe, which is generally expressed in monetary terms.
In 10 years, an individual's earned and unearned income may vary greatly depending on their career and investment choices, economic conditions, and personal circumstances.
Some individuals may see increases in earned income as they gain more experience or take on higher-paying positions, while others may see fluctuations or decreases in earned income due to changes in the job market.
Similarly, unearned income may vary depending on investment performance, interest rates, and changes in government policies.
Hence, unearned income may vary depending on investment performance, interest rates, and changes in government policies.
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Find the complex numbers calculator
The complex numbers calculators are Symbolab, Desmos, Wolfram Alpha etc.
There are many online calculators available for performing calculations involving complex numbers. Here are a few options :
Symbolab : Symbolab is a popular online math tool that includes a complex numbers calculator.
Desmos : Desmos is a powerful online graphing calculator that also includes support for complex numbers
Wolfram Alpha: Wolfram Alpha is a computational search engine that can perform a wide range of mathematical calculations, including those involving complex numbers
These are just a few options, but there are many other online calculators and resources available for performing calculations involving complex numbers.
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On Tuesday, the number of orange cakes Aadil needs in his sample is 5 correct to the nearest whole number. Aadil takes at random a cake from the 750 cakes made on Tuesday. b) What is the lower bound of the probability that the cake is an orange cake, giving your answer as a decimal?
Answer:
A) 210 B) 0.18
Step-by-step explanation:
got it right
help me plsssssssssssss
Answer: i think its 40
Step-by-step explanation: because triangles in general are supposed to have the angle 180 and 40 add 400 add 100 equals 180
ASAP PLEASE HELP ME MY HOMEWORK DEADLINE IS TONIGHT.
Based on angle relationship, the missing angles are:
1. Angle a = 108°; reason: alternate interior angles
2. Angle b = 43°; reason: corresponding angles
3. Angle c = 114°, reason: corresponding angles are congruent.
4. Angle d = 101°; reason: same-side interior angles .
5. Angle e = 82°, reason: alternate interior angles
angle f = 82°, reason: vertical angles
6. Angle g = 67°, reason: corresponding angles
Angle h = 113°, reason: same-side interior angles
7. Angle i = 127°, reason: corresponding angles
Angle j = 53° [reason: linear pair angles]
8. k = = 156° [reason: supplementary angles]
l = 24° [reason: alternate exterior angles]
9. m = 72° [reason: alternate exterior angles]
10. n = 86° [reason: supplementary angles]
11. p = 25° [reason: supplementary angles]
12. q = r = 61° [reason: supplementary angles]
How to Calculate the Missing Angle Using Angle Relationship as Reasons?To calculate a missing angle in a figure using angle relationships, follow these steps:
Identify the type of figure and its relevant angles. Depending on the figure, there may be different angle relationships that can be used to calculate the missing angle.Use the angle relationships and the given angle measures to set up an equation to solve for the missing angle. Some common angle relationships include: corresponding angles which are equal, alternate exterior or interior angles, which are congruent, etc.Therefore:
1. Angle a = 108°, the reason is: alternate interior angles are congruent.
2. Angle b = 43°, the reason is: corresponding angles are congruent.
3. Angle c = 114°, the reason is: corresponding angles are congruent.
4. Based on the same-side interior angles theorem (angle relationship), we have:
d = 180 - 79
d = 101°
5. Angle e = 82°, the reason is: alternate interior angles are congruent.
angle f = 82°, because, vertical angles are congruent.
6. Angle g = 67°, the reason is: corresponding angles are congruent.
Angle h = 180 - 67 = 113°, the reason is: same-side interior angles are supplementary.
7. Angle i = 127°, the reason is: corresponding angles are congruent.
Angle j = 180 - 127 = 53° [reason: linear pair angles]
8. k = 180 - 24 = 156° [reason: supplementary angles]
l = 24° [reason: alternate exterior angles are congruent]
9. m = 72° [reason: alternate exterior angles are congruent]
10. n = 180 - 94 = 86° [reason: supplementary angles]
11. p = 180 - 155 = 25° [reason: supplementary angles]
12. q = r = 180 - 119 = 61° [reason: supplementary angles]
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Boats from all along the Atlantic coast were moored at a busy marina one summer day. Of the 16 boats at the marina, 8 were from Maine.
What is the probability that a randomly selected boat will be from Maine?
I NEED HELP ASAP
The solution is, the probability of picking a boat from Virginia is 3/8
What is probability?Probability can be defined as the ratio of the number of favorable outcomes to the total number of outcomes of an event.
here, we have,
The formula of probability is often given as
P = no. of favorable event/ no. of total outcome
In this case, our variables are
no. of favorable event=6
no. of total outcome =16
Let's proceed to input our values and solve
P = 6/16
= 3/8
From the calculation above the probability of picking a boat from Virginia is 3/8
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In the figure below, m/RSP = 79°, m
P
What is m/QRP?
OA. 90°
OB. 60°
OC. 150°
OD. 50°
S
R
Note picture not drawn to scale
Therefore , the solution of the given problem of angle comes out to be
m∠QRP = 50 degree.
What exactly is an angle?In Euclidean space, an angle is a structure that consists of two poles who split at its apex and apex, which are located in its centre. The sides or loops are the name given to these rays. Combining two rays could result in an inclination within the planes in that they are located. Two planes can be combined to form angles as well. These are referred to as dihedral angles. Two line rays at their end points can be arranged in many ways to produce patterns in two dimensions.
Here,
Given :
m∠RSP = 79 , m∠SPR = 40 and m∠QRS = 111
To find the angle m∠QRP
So,
First find the angle ∠SRP
Thus ,
it is a triangle
79 + 40 + ∠SRP = 180
=> ∠SRP = 180 - 79 -40
=>∠SRP = 61 degree
and
=> m∠QRP = m∠QRS - ∠SRP
=> m∠QRP = 111 - 61
=> m∠QRP = 50 degree.
Therefore , the solution of the given problem of angle comes out to be
m∠QRP = 50 degree.
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The pie chart shows how 36 pupils travel to school.
Use the pie chart to complete the table.
Answer:
Step-by-step explanation:
Answer:
so the bike is 7. car is 8 walk is 9 bus is 12 so in total it will be 36 pupils to travel to school
A regular hexagon has a perimeter of 57 inches.
What is the area of the hexagon?
Enter your answer, rounded to the nearest tenth, in the box.
Rounding to the nearest tenth, the area of the hexagon is 244.3 square inches.
Area of Hexagon:The area of a regular hexagon is calculated using the formula (3√3 / 2) × s^2, where s is the length of a hexagonal side. Given that we are talking about a regular hexagon, it is important to remember that all of the sides are the same length. The formula Area of the Hexagon = (3√3 / 2) × s^2, where's' is the length of the hexagonal side, can be used to determine the area of a regular hexagon when one of its sides is known.
All of the sides of the hexagon are the same length because it is a regular shape.
Therefore, each side has a length of 57 inches / 6 = 9.5 inches.
To find the area of the hexagon, we can use the formula:
Area = (3√3 / 2) × s^2
where s is length of a side.
Substituting s = 9.5 inches, we get:
Area = (3√3 / 2) × (9.5 inches)^2
Area ≈ 244.3 square inches
Rounding to the nearest tenth, the area of the hexagon is 244.3 square inches.
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how to convert 33 inches to feet?
As per the conversion factor, 33 inches is equivalent to 2.75 feet.
When we want to convert one unit to another, we use conversion factors to do so. A conversion factor is a ratio that represents the relationship between two units of measurement. In this case, we want to convert inches to feet.
To convert inches to feet, we need to use the conversion factor of 1 foot equals 12 inches. This means that for every 12 inches, we have 1 foot. To convert 33 inches to feet, we divide 33 by 12.
33 inches ÷ 12 inches/foot = 2.75 feet
To summarize, we used the conversion factor of 1 foot equals 12 inches to convert 33 inches to feet. We divided 33 by 12 to get the equivalent value in feet, which is 2.75. Always remember to use the appropriate conversion factor when converting units to avoid mistakes.
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What are the possible values of x and y for two distinct points, (5, –2) and (x, y), to represent a function?
The value of x can be
.
The value of y can be
.
Answer:
The value of x can be 10
The value of y can be -4
Step-by-step explanation:
Assume the function is linear of the form
y = mx
When x = 5, y = -2
Simply multiply x by 2 and equivalently multiply -2 by 2
x = 5 x 2= 10
y = -2 x 2 = -4
How to represent factorial as a product notation?
The factorial of a number n is the product of all positive integers up to and including n
The factorial function is typically represented using the "!" symbol, such that n! represents the product of all positive integers up to and including n. For example, 5! = 5 x 4 x 3 x 2 x 1 = 120.
To represent the factorial function using product notation, we can write:
n! = ∏_{i=1}^n i
This means that we take the product of all positive integers from 1 to n, which is equivalent to computing n!. For example, using this notation, we can write:
5! = ∏_{i=1}^5 i = 1 x 2 x 3 x 4 x 5 = 120
Note that the product starts at i=1 and goes up to n, which includes all the positive integers we want to multiply together.
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Use the graph to determine a. the function's domain; b. the function's range; c. the x-intercepts, if any; d. the y-intercept, if there is one; e. the following function values. f(0) f(3)
Answer: look at the image for the answer and explanation
Step-by-step explanation:
PLEASE HELP URGENTLY
John wants to save money on fuel. His friend tells him: You can save 1/3 of the cost of your fuel by driving efficiently. John spends £72 each week on fuel for his car. He thinks driving efficiently can save him £100 every 4 weeks. Is John correct? Show why you think this us.
how to calculate time for 1 oscillation
Period, which is a measure of how long an oscillation lasts, is constant. With L being the pendulum's length and g being the acceleration brought on by gravity, the formula for calculating a pendulum's period is T = 2π √L/g,
A simple pendulum is a machine whose point mass is suspended from a fixed support by a light, inextensible string. When a pendulum is displaced sideways from its resting position due to gravity, the equilibrium position is subjected to a restoring force that will accelerate it back toward the equilibrium position.
Only the length of the string affects a pendulum's period; the mass of the ball has no bearing. When two pendula are the same length but have different masses, their periods will be the same. The pendulum with the longer string will have a longer period if there are two of them, but their periods will differ.
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Please answer my question.
a. The coordinates after the rotation are: D(-5, 4) → D' (5, -4), E(3, 6) → E'(3, -6), and F(4, 2) → F'(4, -2) b. The general rule below that describes the rotation are: (x, y) → (x, -y).
What are transformation?According to the definition of a transformation in mathematics, a transformation is a geometric shape or formula that has been altered, mapping the shape or formula from its preimage, or initial position, to its image, or after-transformation position. Because transforming a function to a different space offers a fresh viewpoint on the issue, scientists and mathematicians employ transformations to simplify a problem. Scientists frequently shift a function, manipulate it, and then transform it back to its original place because this fresh perspective can make computations easier in the new space than in the old one.
a. The coordinates after the rotation are:
D(-5, 4) → D' (5, -4)
E(3, 6) → E'(3, -6)
F(4, 2) → F'(4, -2)
b. The general rule below that describes the rotation are:
(x, y) → (x, -y)
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Prepare closing entries. (Credit account titles are automatically indented when the amount is entered. Do not indent manually. If no entry is required, select "No Enty" for the account titles and enter O for the amounts)
As a result of these entries, the revenue and expense accounts will have zero balances, and the net income of $19,500 will be transferred to the Retained Earnings account.
What is Algebraic expression ?
Algebraic expression can be defined as combination of variables and constants.
Based on the information provided in the image, here are the closing entries for the accounting period:
Close the revenue accounts:
Account Titles Debit Credit
Income Summary 34,000
Service Revenue 34,000
Close the expense accounts:
Account Titles Debit Credit
Salaries Expense 8,000
Rent Expense 6,000
Supplies Expense 1,500
Income Summary 15,500
Close the Income Summary account to the Retained Earnings account:
Account Titles Debit Credit
Income Summary 19,500
Retained Earnings 19,500
Therefore, As a result of these entries, the revenue and expense accounts will have zero balances, and the net income of $19,500 will be transferred to the Retained Earnings account.
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Solve the inequality
[tex]x { \\ }^{2} < 16[/tex]
The solution of the inequality is x < -4 or x < 4
How to solve inequality?An inequality is a relationship that makes a non-equal comparison between two numbers or other mathematical expressions e.g. 2x > 4
An inequality can be expressed using one of several symbols, including < (less than), > (greater than), <= (less than or equal to), >= (greater than or equal to), and != (not equal to).
x² < 16
Take the square root of both sides:
x < ±√16
x < ±4
x < -4 or x < 4
Therefore, the solution is x < -4 or x < 4
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Highwood Park is constructing a children's play area that will be completely fenced
with three entrance and exit gates. The number of feet of fencing needed to enclose
the children's play area can be determined using the formula f = 47(a + 9) – 16
where f represents the feet of fencing and a represents the area. If Highwood Park
has 420 feet of fencing, what is the area of the space?
The area of the play area is 8.74 square feet.
If Highwood Park has 420 feet of fencing, then we can use the formula f = 47(a + 9) – 16 to calculate the area of the play area.
This formula takes in account the area (a) of the play area, as well as the number of feet of fencing needed to enclose it (f).
In this equation, the number of feet of fencing (f) is equal to 47 multiplied by the area (a) plus 9, and then subtracted by 16.
Since we know that the amount of fencing is 420 feet, we can solve the equation for the area, a.
First, we need to subtract 16 from both sides of the equation. This leaves us with
=> 420 = 47a + 9.
Next, we subtract 9 from both sides of the equation, which gives us
=> 411 = 47a.
Finally, we divide both sides of the equation by 47, which gives us
=> a = 8.74.
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how to divide fractions with whole numbers and mixed numbers
To multiply, flip (or invert) the divisor into a reciprocal, then start changing the division sign to a multiplication symbol. If you can, simplify your response.
1. Use a division sign to start writing the entirety and the mixed numbers as improper fractions.
2. Write this same divisor's mutual recognition as well as replace the division sign with a multiplication sign.
3. Simplify any common factors in which it actually occur.
4. To achieve the outcome, simply multiply the numerators and denominators together.
Let us try this: 3½ ÷ 2
Rewrite 3½ as an invalid fraction.
i.e, 7/2 ÷ 2/1
Write the reciprocal of the divisor and replace with, 7/2 × 1/2 = 7/4
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A tank that currently contains 2500 gallons of oil is being emptied at a rate of 25 gallons per minute. The capacity of this tank is 3000 gallons. Let c be the capacity of the tank, and t be the time. Write an equation that relates the two quantities.
Answer:
The rate at which the tank is being emptied is 25 gallons per minute, which means that the change in the amount of oil in the tank per minute is -25. Let's assume that the initial amount of oil in the tank is 2500 gallons and the capacity of the tank is 3000 gallons.
The equation that relates the amount of oil in the tank, V, and time, t, is given by:
V = 2500 - 25t
This equation represents a linear relationship between the amount of oil in the tank and time. As time increases, the amount of oil in the tank decreases linearly at a rate of 25 gallons per minute.
The capacity of the tank, c, is 3000 gallons, which means that the tank will be completely emptied after:
t = (3000 - 2500) / 25 = 20 minutes
After 20 minutes, the amount of oil in the tank will be:
V = 2500 - 25(20) = 2000 gallons
evaluate (4xy+y)÷2 when x=3 and y=2
Answer: 13
Step-by-step explanation:
Firstly, you would plug in the values that you were given for x and y into the equation.
((4 * (3) * (2)) + (2))/2 = 13
Answer:
13
Step-by-step explanation:
(4xy+y) ÷ 2
= (4x3x2+2) ÷ 2
= 26 ÷ 2
= 13
The price of a gallon of regular gasoline at 75 gas stations across the state is normally distributed with a mean of $2.05 and a standard deviation of 4 cents
We can estimate that approximately 35 gas stations sell a gallon of regular gas for no more than $2.01.
What is the percentage?
A percentage is a number or ratio expressed as a fraction of 100. It is often denoted using the percent sign, "%". The percentage can be calculated by dividing the value by the total value and then multiplying the result by 100.
a) To find the percentage of gas stations that sell regular gas for less than $1.973, we need to calculate the z-score corresponding to this value:
z = (1.973 - 2.05) / 0.47 = -0.164
Using a standard normal distribution table or calculator, we can find that the percentage of gas stations selling regular gas for less than $1.973 is approximately 44.38%.
b) To find the percentage of gas stations selling regular gas for at least $2.17, we can calculate the z-score corresponding to this value:
z = (2.17 - 2.05) / 0.47 = 0.255
Using a standard normal distribution table or calculator, we can find that the percentage of gas stations selling regular gas for at least $2.17 is approximately 40.86%.
c) To find the probability that a gas station sells regular gas for less than $1.97 or greater than $2.05, we can calculate the z-scores for each value:
z1 = (1.97 - 2.05) / 0.47 = -0.164
z2 = (2.05 - 2.05) / 0.47 = 0
Using a standard normal distribution table or calculator, we can find the probabilities corresponding to each z-score:
P(z < -0.164) = 0.4364
P(z > 0) = 0.5 - 0.5(0) = 0.5
To find the probability that a gas station sells regular gas for less than $1.97 or greater than $2.05, we can add these probabilities:
P(z < -0.164 or z > 0) = P(z < -0.164) + P(z > 0) = 0.4364 + 0.5 = 0.9364
Therefore, the probability that a gas station sells regular gas for less than $1.97 or greater than $2.05 is approximately 93.64%.
d) To find the number of gas stations that sell regular gas for no more than $2.01, we can calculate the z-score corresponding to this value:
z = (2.01 - 2.05) / 0.47 = -0.085
Using a standard normal distribution table or calculator, we can find the probability corresponding to this z-score:
P(z < -0.085) = 0.4664
Multiplying this probability by the total number of gas stations (75), we can estimate the number of gas stations that sell regular gas for no more than $2.01:
0.4664 * 75 ≈ 35
Therefore, we can estimate that approximately 35 gas stations sell a gallon of regular gas for no more than $2.01.
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Complete question:
The price of a gallon of regular gasoline at 75 What percent of gasoline gas stations sell gallons of gas stations across the state is normally regular gas for less than $1.973 distributed with & a mean of $2.05 and a standard deviation of 47. b) What percent of gas stations sell a gallon? regular gas for at least $2.17? c) What is The probability that gas station sells gallons of regular gas for less than $1.97 or greater than $2.05? About how many stations sell a gallon of regular gas for no more than $2.01?
what is 3 4 as a decimal
3/4 in a decimal, divide the denominator by the numerator to get 3/4 as a decimal 3/4 is 0.75.
We divide the numerator by the denominator to convert a fraction to a decimal number. This results in a decimal value because, when dividing, we add the decimal place and then add the necessary number of zeros to finish the division.
3/4
3[1/2 x 1/2]
3 x [0.5 x 0.5]
3 x 0.25
0.75
To convert a fraction to a decimal, all you have to do is divide the numerator by the denominator. We position the number over its place value when converting a decimal to a fraction.
Just dividing the numerator by the denominator is all that is required to convert a fraction to a decimal.
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I will give 40 points!
Eight subtracted from the product of 4 and a number is less than 26. Translate the sentence into an inequality
Answer:
(4 × y) - 8 = <26
Step-by-step explanation:
The equation for this problem is:
(Let y = the unknown number)
(4 × y) - 8 = <26Therefore, you can use (4 × y) - 8 = <26 as an inequality for this problem.
Please help ASAP! thank you! 15 points
Choose the correct inequality for this real-world situation: a corvette’s maximum speed is 195 mph. Let S represent speed.
The inequality that models the situation is given as follows:
195 ≥ s.
What are the inequality symbols?The four inequality symbols, along with their meaning, are presented as follows:
> x: greater than x.< x: less than x.≥ x: at least x.≤ at most x.For this problem, we have that the speed, represented by variable s, must be of at most 195 mph, hence the inequality is given as follows:
s ≤ 195.
Meaning that 195 is greater than or equal to s, hence:
195 ≥ s.
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