To perform regression on this longitudinal data, where air pollution readings and traffic flow data are collected at regular intervals over time, we would use time series regression.
The link between a dependent variable (in this case, air pollution readings) and one or more independent variables (in this case, traffic flow) that are measured over time is examined using the statistical technique known as time series regression.
It is assumed that the dependent variable and the independent variable have a linear relationship in time series regression, a form of linear regression (s). It also takes into account the data's temporal character, where each observation depends on earlier observations.
In time series regression, a time series model is used to take the temporal component of the data into account. There are various kinds of time series models, such as the popular technique for time series regression known as ARIMA (autoregressive integrated moving average). ARIMA models forecast the future using the dependent variable's previous values.
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Determine the intercept of the line
4x-3y=17
Answer:
x = 17/4, or 4.25
The x-intercept is (4.25, 0)
Step-by-step explanation:
We can get the intercepts by isolating x and y.
4x - 3y = 17
Subtract 4x from both sides.
-3y = -4x + 17
Divide both sides by -3.
y = 4/3x - 17/3
Input 0 for x.
y = -17/3
The y-intercept is (0, -17/3)
4x - 3y = 17
Add 3y to both sides.
4x = 3y + 17
Divide both sides by 4.
x = 3/4y + 17/4
Input 0 for y.
state the meaning of the central limit theorem in your own words. how important is it to the development and use of statistical quality control techniques?
The central limit theorem is a statistical theory that specifies the probability distribution of a sum or average of several random variables whose distribution is not known.
It is an important theorem since it is utilized to help forecast or estimate the behavior of a specific set of data.
This theorem holds that when you take repeated samples of the same size from a population with a finite standard deviation, the means of those samples will be normally distributed, with a mean equal to the population mean and a standard deviation equal to the population standard deviation divided by the square root of the sample size.
Further more, the theorem indicates that the larger the sample size, the more closely the sample mean distribution will approximate a normal distribution.
This is why it is vital in the development and use of statistical quality control techniques, since they rely on correct assumptions about the population’s normality.
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of six dvd players, two are defective and four are not. if cecil randomly chooses two of these dvd players, without replacement, the probability that the two he chooses are not defective is , what is the value of ??
The probability of selecting two non-defective DVD players from a group of six is 2/5. This is based on the assumption that the selection is done without replacement.
We can use the formula for calculating probabilities of combinations:
P(not defective) = number of ways to choose 2 non-defective DVD players / total number of ways to choose 2 DVD players
Total number of ways to choose 2 DVD players out of 6 is:
C(6,2) = 6! / ([2!] [4!]) = 15
Number of ways to choose 2 non-defective DVD players out of 4 is:
C(4,2) = 4! / ([2!] [2!]) = 6
Therefore, the probability that Cecil chooses 2 non-defective DVD players is:
P(not defective) = 6/15 = 2/5
So the value of P(not defective) is 2/5.
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listed are 29 ages for academy award winning best actors in order from smallest to largest. 18; 21; 22; 25; 26; 27; 29; 30; 31; 33; 36; 37; 41; 42; 47; 52; 55; 57; 58; 62; 64; 67; 69; 71; 72; 73; 74; 76; 77 find the percentile rank of age 30.
The percentile rank of age 30 is 27.586%.
The percentile rank of age 30 can be calculated using the following equation:
Percentile rank = (number of scores below 30 / total number of scores) x 100
In this case, the total number of scores is 29, and there are 8 scores below 30 (18, 21, 22, 25, 26, 27, 29, and 30). Therefore, the percentile rank of age 30 is:
(8/29) x 100 = 27.586%
The percentile rank of age 30 is 27.586%.
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Clare is cycling at a speed of 12 miles per hour. If she starts at a position chose as zero, what will her position be after 45 minutes?
Answer: 9 miles
Step-by-step explanation: The speed of 12 miles per hour means that for every hour, Clare is 12 miles further from the starting point. 1 hour = 12 miles Since an hour is equivalent to 60 minutes, 60 mins = 12 miles We can divide both sides by 60 to find the distance travelled per minute. 1 min = 12 ÷60= 0.2 miles Multiply both sides by 45 to find the distance travelled in 45 minutes: 45 mins = 0.2(45)= 9 miles Given that the starting position is at zero, Clare's position is at 9 miles after 45 minutes.
simple smoothing time period actual series forecast series forecast error 1 100 100 0 2 110 3 115 if a smoothing constant of .3 is used, what is the exponentially smoothed forecast for period 4? multiple choice 106.6. 103.0. 115.0. 104.4. 112.6.
The exponentially smoothed forecast for period 4 is 106.6.
As per given information,
Time period Actual series Forecast series Forecast error 1 100 100 0 2 110 3 115
Smoothing constant α=0.3
For calculating exponentially smoothed forecast for period 4,
First, we need to calculate exponentially smoothed forecast for period 2.
Smoothed forecast for period 2 = α (Actual demand for period 1) + (1-α) (Smoothed forecast for period 1)
= 0.3 (100) + (0.7) (100)= 30 + 70= 100
Next, we can calculate exponentially smoothed forecast for period 3.
Smoothed forecast for period 3 = α (Actual demand for period 2) + (1-α) (Smoothed forecast for period 2)
= 0.3 (110) + (0.7) (100)
= 33 + 70
= 103
Now, we can calculate exponentially smoothed forecast for period 4.
Smoothed forecast for period 4 = α (Actual demand for period 3) + (1-α) (Smoothed forecast for period 3)
= 0.3 (115) + (0.7) (103)= 34.5 + 72.1
= 106.6
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calculate the amount of heat produced, in kj, when 52.40 g of methane, ch4, burns in an excess of air, according to the following equation.
Therefore, the amount of heat produced when 52.40 g of methane, CH4, burns in an excess of air is -39568.2 kJ
The amount of heat produced when 52.40 g of methane, CH4, burns in an excess of air can be calculated using the following equation:
[tex]Q = mcΔT[/tex]
Where Q is the amount of heat produced (in kJ), m is the mass of the methane (in g), and ΔT is the change in temperature (in K).
Using the equation, the amount of heat produced can be calculated as follows:
Q = [tex](52.40 g)(-753.15 K) = -39568.2 kJ[/tex]
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The geometric mean between 16 and 20 is
Answer: 17.888543819998
Step-by-step explanation:
Answer:
17.8885
Step-by-step explanation:
find the geometric mean between 16 and 20, we need to multiply the numbers and take the square root of the result. That is:
Geometric Mean = √(16 × 20)
Geometric Mean = √320
Geometric Mean ≈ 17.8885
Therefore, the geometric mean between 16 and 20 is approximately 17.8885.
PLSSSS HELP IF YOU TURLY KNOW THISSS
Given:-
[tex] \tt \: 3x = 12[/tex][tex] \: [/tex]
Solution:-
[tex] \tt \: 3x = 12[/tex][tex] \: [/tex]
[tex] \tt \: \: x = \cancel{ \frac{12}{3} }[/tex][tex] \: [/tex]
[tex] \boxed{ \tt{ \green{ \: x = 4 \: }}}[/tex][tex] \: [/tex]
__________________
hope it helps ⸙
in a gambling game a person draws a single card from an ordinary 52-card playing deck. a person is paid $19 for drawing a jack or a queen and $5 for drawing a king or an ace. a person who draws any other card pays $2. if a person plays this game, what is the expected gain? (round your answer to the nearest cent.)
the expected gain is $0.77, rounded to the nearest cent.The expected gain is the sum of the products of the probability of each outcome and its corresponding payoff.
There are 4 jacks, 4 queens, 4 kings, and 4 aces in a standard 52-card deck. So the probability of drawing a jack or a queen is 8/52 = 2/13, and the probability of drawing a king or an ace is also 8/52 = 2/13. The probability of drawing any other card is 1 - 2/13 - 2/13 = 9/13.
The expected gain is the sum of the products of the probability of each outcome and its corresponding payoff. So:
Expected gain = (2/13) * 19 + (2/13) * 5 + (9/13) * (-2)
Expected gain = 38/13 - 10/13 - 18/13
Expected gain = 10/13 ≈ 0.77
Therefore, the expected gain is $0.77, rounded to the nearest cent.
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Xavier receives a paycheck of $2250. First, he spends 20% of his paycheck to buy a new mattress. Then, he spends 29 of the remaining amount to fix a leak in his kitchen. After Xavier pays these two expenses, how much will be left over from his paycheck?
Answer:
Step-by-step explanation:
he's rich
Xavier will have $1278 left over from his paycheck after spending 20% on a new mattress and 29% on fixing a leak.
Explanation:To find out how much will be left over from Xavier's paycheck after he spends 20% on a new mattress and 29% on fixing a leak, we can follow these steps:
Calculate 20% of $2250, which is $450.Subtract $450 from $2250 to find the remaining amount after buying the mattress, which is $1800.Calculate 29% of $1800, which is $522.Subtract $522 from $1800 to find the amount left over after fixing the leak, which is $1278.Therefore, Xavier will have $1278 left over from his paycheck.
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What is the value of
∠FDE given the following image?
The value of ∠FDE is 36°
Define the term angles?An angle is a geometric figure formed by two rays, or lines that extend infinitely in opposite directions, that share a common endpoint called the vertex. The measure of an angle is determined by the amount of rotation between the two rays.
Here given a right angle ∠CDE = 90°
So, we can say that,
∠CDF + ∠FDE = ∠CDE
(2x)° + (x+9)° = 90°
(3x + 9)° = 90°
Simplify it, x = 27°
So, the value of ∠FDE = (x+9)° = (27+9)° = 36°
Therefore, the value of ∠FDE is 36°
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The angle FDE is 36°. The required answer for the given question is option (A). 36°.
What is the value of <FDE?Trigonometry angles are the angles provided by the trigonometric function ratios. Trigonometry is the study of the connection between angles and triangle sides. Angle values vary from 0 to 360 degrees.
An angle is a shape in geometry made by two rays or lines that stretch indefinitely in opposite directions and have a common endpoint known as the vertex. The quantity of rotation among the two rays determines the size of an angle.
From the given figure,
∠CDF + ∠FDE = 90
Thus,
(2x)+(x+9) = 90
3x + 9 = 90
3x = 81
x = 27
Then we will have that the angle FDE is:
∠FDE = (27) + 9
∠FDE = 36
The angle of FDE is 36°
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Quadrilateral ABCD is inscribed in this circle.
What is the measure of angle B?
what are the 4 uppercase letters of the alphabet in block style with rotational symmetry?
The four uppercase letters of the alphabet in block style with rotational symmetry are H, I, O, and X. Rotational symmetry refers to the property of a figure or object that appears identical after being rotated around a central point by a certain angle.
In block style writing, letters are written with straight lines and sharp corners, creating a uniform and geometric appearance. H, I, O, and X are the only uppercase letters that have rotational symmetry and can be written in block style.
H has a rotational symmetry of 180 degrees, meaning it looks the same when rotated 180 degrees around its center point.
I has a rotational symmetry of 180 degrees as well, with the dot above the letter acting as its center point.
O has a rotational symmetry of 360 degrees, meaning it looks the same when rotated any number of degrees around its center point.
Lastly, X has a rotational symmetry of 180 degrees, with the intersection of the two lines acting as its center point.
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I am a triangle
My base is 32
My second base is two times for the first base
My hight is 21.6
What is my area?
Answer: The area of a triangle is 1036.8 square units.
To find the area of a triangle, we can use the formula
Area = (1/2) * base * height
In this case, we are given that the first base is 32 and the second base is twice the first base, or 2*32 = 64. The height is given as 21.6. Therefore, we can plug these values into the formula and solve for the area:
Area = (1/2) * (32 + 64) * 21.6
Area = (1/2) * 96 * 21.6
Area = 1036.8
Therefore, the area of the triangle is 1036.8 square units.
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Find all the solutions in the equation 2 cos(x)- sqrt30 =0 in the interval [0,2pi)
Answer:
For me it's C.
Step-by-step explanation:
the third one if you would like me to explain tell me.
The solutions to the trigonometric equations [tex]2cos(x) - \sqrt{30} = 0[/tex] in the interval [tex][0, 2\pi)[/tex] are x ≈ [tex]0.5514 + 2n\pi[/tex], where n is an integer.
Given that the equation [tex]2cos(x) - \sqrt{30} = 0[/tex] in the interval [tex][0, 2\pi)[/tex]
To find all the solutions to the equation [tex]2cos(x) - \sqrt{30} = 0[/tex] in the interval [tex][0, 2\pi)[/tex] , solve for x by isolating the cosine term and then applying the inverse cosine function.
Here are the steps to solve the equation:
Add [tex]\sqrt{30}[/tex] to both sides:
[tex]2cos(x) = \sqrt{30}[/tex]
Divide both sides by 2:
[tex]cos(x) = \sqrt{30} / 2[/tex]
Find the inverse cosine ([tex]cos^{-1}[/tex]) of both sides:
[tex]x = cos^{-1}(\sqrt{30} / 2)[/tex]
To determine the values of x in the interval [tex][0, 2\pi)[/tex] that satisfy the equation.
Evaluate [tex]cos^{-1}(\sqrt{30} / 2)[/tex] to find its approximate value.
[tex]cos^{-1}(\sqrt{30} / 2) = 0.5514[/tex] radians
Since the cosine function has a periodicity of [tex]2\pi[/tex], we can find other solutions by adding multiples of [tex]2\pi[/tex] to the initial solution.
So, the solutions in the interval [tex][0, 2\pi)[/tex] are:
x ≈ 0.5514 radians
x ≈ [tex]0.5514 + 2\pi[/tex]
x ≈ [tex]0.5514 + 4\pi[/tex]
...
To simplify, express the solutions as:
x ≈ [tex]0.5514 + 2n\pi[/tex]
where n is an integer.
Therefore, the solutions to the trigonometric equations [tex]2cos(x) - \sqrt{30} = 0[/tex] in the interval [tex][0, 2\pi)[/tex] are x ≈ [tex]0.5514 + 2n\pi[/tex], where n is an integer.
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A movie theater wanted to determine the average rate that their diet soda is purchased. An employee gathered data on the amount of diet soda remaining in the machine, y, for several hours after the machine is filled, x. The following scatter plot and line of fit was created to display the data. scatter plot titled soda machine with the x axis labeled time in hours and the y axis labeled amount of diet soda in fluid ounces, with points at 1 comma 35, 1 comma 39, 2 comma 32, 3 comma 24, 3 comma 30, 4 comma 20, 5 comma 18, 5 comma 22, 6 comma 4, 6 comma 14, 7 comma 8, and 8 comma 0, with a line passing through the coordinates 3 comma 25.2 and 7 comma 4.84 Find the y-intercept of the line of fit and explain its meaning in the context of the data. The y-intercept is −5.1. The machine starts with 5.1 ounces of diet soda. The y-intercept is 40.5. The machine starts with 40.5 ounces of diet soda. The y-intercept is −5.1. The machine loses about 5.1 fluid ounces of diet soda each hour. The y-intercept is 40.5. The machine loses about 40.5 fluid ounces of diet soda each hour.
The correct answer is: The y-intercept is −5.1. The machine starts with 5.1 ounces of diet soda.
What is the equation of the line?
A linear equation is an algebraic equation of the form y=mx+b. where m is the slope and b is the y-intercept.
The y-intercept of a line of fit is the value of y when x equals 0. In the context of this problem, the y-intercept represents the amount of diet soda that the machine starts with when it is filled.
Since the y-intercept of the line of fit is −5.1, this means that the machine starts with 5.1 ounces of diet soda.
This is a reasonable value, as it is unlikely that the machine would be completely empty when it is filled.
It's important to note that the slope of the line of fit is also relevant in this context.
The slope represents the rate at which the amount of diet soda in the machine decreases over time. However, the question only asked for the y-intercept.
Hence, the correct answer is: The y-intercept is −5.1. The machine starts with 5.1 ounces of diet soda.
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draw marbles from a bag which contains 5 red marbles, 6 blue marbles and 4 green marbles with replacement until you get a blue marble. a) binomial b) poisson c) hypergeometric d) none of these
the correct answer is: none of these, as only binomial distribution is applicable to this scenario.
a) This scenario follows the binomial distribution, as we are drawing marbles with replacement and interested in the number of successes (getting a blue marble) in a fixed number of trials.
b) The Poisson distribution is used to model the number of events occurring in a fixed time interval, given a certain rate of occurrence. It is not applicable in this scenario.
c) The hypergeometric distribution is used to model the probability of obtaining a certain number of successes in a sample without replacement, given a finite population of items that can be classified into successes and failures. In this scenario, we are drawing with replacement, so the hypergeometric distribution is not applicable.
d) Therefore, the correct answer is: none of these, as only binomial distribution is applicable to this scenario.
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Jessie is painting a cardboard box for a school project and needs to know much paint she needs to cover the box.
A prism has a length of 10 inches, height of 6 inches, and width of 4 inches.
Which statement is correct about the amount of paint Jessie needs to cover the whole box?
A. Jessie should use surface area to find out she needs to cover 240 in.2 of the cardboard box with paint.
B. Jessie should use surface area to find out she needs to cover 248 in.2 of the cardboard box with paint.
C. Jessie should use volume to find out she needs to cover 240 in.3 of the cardboard box with paint.
D. Jessie should use volume to find out she needs to cover 248 in.3 of the cardboard box with paint.
help 100pts + brlnst
Option (C) is correct which is "Jessie should use volume to determine that the cardboard box requires 240 in3 of paint."
What is volume?The measurement of three-dimensional space is volume.
It is typically quantified using a variety of imperial or US-standard units as well as SI-derived units.
The concept of length and volume are related.
Volume is the three-dimensional space inhabited by matter or encompassed by a surface, and it is measured in cubic units.
The SI unit of volume is the cubic meter (m³), which is a derived unit.
So, the volume would be:
length x breadth x height
Step 1 : substitute the values given
Step 2 : 10 x 4 x 6
Then, we got: 240 inches
Therefore, option (C) is correct which is "Jessie should use volume to determine that the cardboard box requires 240 in3 of paint."
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Answer:
c
Step-by-step explanation: I was correct
Help me with these please!!
The properties of a parallelogram indicates that the variables in the segments and angles are;
b = 1, a = 3x = 15, y = 50x = 18, y = 9x = 2, y = 4.5What is a parallelogram?A parallelogram is a four sided figure with two pairs of sides that are parallel.
Whereby the figures are parallelogram, we get;
The length of the opposite sides are the same, therefore;
1. b + 1 = 2·b
1 = 2·b - b = b
1 = b
b = 1 (symmetric property)
3·a - 4 = a + 2
3·a - a = 4 + 2
2·a = 6
a = 6/2 = 3
a = 3
2. The opposite angles of a parallelogram are congruent, therefore;
(y + 10)° = (2·y - 40)°
10 + 40 = 2·y - y = y
50 = y
y = 50
The adjacent interior angles of a parallelogram are supplementary, therefore;
(4·x)° + (2·y - 40)° = 180°
(4·x)° + (2 × 50 - 40)° = 180°
(4·x)° = 180° - (2 × 50 - 40)° = 60°
x = 60°/4 = 15°
x = 15
3. The diagonals of a parallelogram bisect each other, therefore;
y + 3 = 12
y = 12 - 3 = 9
y = 9
x - 3 = 15
x = 15 + 3 = 18
x = 18
4. The diagonals of a parallelogram bisect each other therefore;
x + 6 = 4·x
4·x = x + 6
4·x - x = 6
3·x = 6
x = 6/3 = 2
x = 2
5·y - 8 = 3·y + 1
5·y - 3·y = 1 + 8 = 9
2·y = 9
y = 9/2 = 4.5
y = 4.5
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Do anybody know this?
The coordinate of the point U that divides the line ST in the ratio 2:5 is: (12:6)
What are the coordinates of the division of the line segment?The formula for the division of line segments in the ratio m:n is
P = {[(mx2 + nx1)/(m + n)], [(my2 + ny1)/(m + n)]}
We are given the coordinates of line Segment ST as: S(10, 2) and T(17, 16)
Thus, if the ratio is 2:5, we have:
U(x, y) = {[(2*17 + 5*10)/(2 + 5)], [(2*16 + 5*2)/(2 + 5)]}
U(x, y) = (84/7), (42/7)
U(x, y) = (12, 6)
Thus, that is the coordinate of the point U that divides the line ST in the ratio 2:5.
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Tyler has run 10. 4 miles,which is 65 percent of the total distance he plans to run this week. What is the total distance that Tyler plans to run this week
Tyler has run 10.4 miles, which is 65% of the total distance he plans to run this week. Tyler plans to run a total of 16 miles this week.
Let's use "x" to represent the total distance that Tyler plans to run this week. According to the problem, Tyler has already run 10.4 miles, which is 65% of the total distance he plans to run. We can set up an equation to represent this information:
10.4 = 0.65x
To solve for x, we can divide both sides of the equation by 0.65:
x = 10.4 ÷ 0.65
x = 16
Therefore, the total distance that Tyler plans to run this week is 16 miles.
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what is the cop of a carnot refrigerator, when t(cold) is 275 k and t(hot) is 158 c?(write as a fraction, not a percent)
In the following question, among the conditions given, the cop of a Carnot refrigerator, when t(cold) is 275 k and t(hot) is 158 c. Then the COP of the Carnot refrigerator is 1.76 (written as a fraction "88/50").
The COP of a Carnot refrigerator is calculated as: COP = T(Cold) / (T(Hot) - T(Cold))The COP of a Carnot refrigerator is given by the formula:
COP = T(Cold) / (T(Hot) - T(Cold))Where T(Cold) is the temperature of the cold reservoir and T(Hot) is the temperature of the hot reservoir.
T(Cold) = 275 K and T(Hot) = 158 °C = 431 K By substituting these values into the formula: COP = 275 / (431 - 275)COP = 275 / 156COP = 1.76 The COP of the Carnot refrigerator is 1.76 (written as a fraction 88/50).
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Implementing multiple types of technology and thereby precluding that the failure of one system will compromise the security of information is referred to as ____. (p. 205)
Implementing multiple types of technology and thereby precluding that the failure of one system will compromise the security of information is referred to as redundancy.
Explanation:
What is redundancy?Redundancy is the term used to describe the use of multiple components in a system to ensure that the failure of one component does not lead to system failure. Redundancy is a method of protecting computer systems against damage and disruption caused by component failure.The use of redundancy in computer systems is usually targeted at increasing system availability and lowering the likelihood of data loss.
Multiple types of technology may be employed to achieve redundancy in a computer system, such as mirroring data across multiple disks, deploying standby servers, using a hot backup server, and so on. Redundancy can be implemented in numerous ways to provide reliable service and protect against system failure.
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4x = 28 I need help with this.
Answer:
x=7
Step-by-step explanation:
28/4 = 7
Answer:x=7
Step-by-step explanation:
PLEASE HELP WITH ENTIRE WORK SHEET I AM STRUGGLING SO BAD I WILL GIVE ALL POINTS AND MARK YOU BRAINLIEST FOR EVERYTHING PLEASE HELP! :( LOTS OF LOVE <3
Answer:
1-
a. 19
b. -8
2-
a. -31
b. 0
c. -10.7
d. -3/7
e. 4
3-
a. -5
b. -60
c. 0
d. -1/4
4. -13/2
5. -85/18
6. -5/12
7. -11
8. 16/11
9. -20/27
10. 26/11
11. -55/9
Step-by-step explanation:
why did i do this
Sketch the qraphs. 2x+3y=1
Answer:
y = -2/3x + 1/3
Step-by-step explanation:
2x + 3y = 1
3y = -2x + 1
y = -2/3x + 1/3
To sketch:
Pretend x is 3. y would be -1 2/3.
Now that you have this point, draw through the point (0, 1/3).
There ya go
Factor completely 16x2 − 25. (4x − 5)(4x − 5)
(4x + 5)(4x − 5)
(16x + 5)(x − 5)
(16x − 5)(x + 5)
Answer:
Step-by-step explanation:
(4x - 5)(4x + 5) Option 1
16x^2 + 20x - 20x - 25
6. Martin has a business washing cars. Last year he washed 20 cars a week. This year, he wants to increase his business to 1.200 cars a year. How many cars will he have to wash each month on average?
Martin will have to wash 96 cars each month on average to meet his goal of washing 1,200 cars this year.
What is average ?
Average, also known as mean, is a statistical measure that represents the central value of a dataset. It is calculated by adding up all the values in the dataset and dividing by the total number of values. The average can be used to provide a general idea of the value of the dataset and to compare different datasets. There are different types of averages, including arithmetic mean, geometric mean, and median.
According to the question:
To find out how many cars Martin will have to wash each month on average, we need to first find out how many weeks there are in a year:
52 weeks/year
Then we can use this information to calculate how many cars Martin will have to wash each week:
1,200 cars/year ÷ 52 weeks/year = 23.08 cars/week
Since Martin cannot wash a fraction of a car, he will have to round up to 24 cars/week.
Finally, we can calculate how many cars Martin will have to wash each month on average:
24 cars/week x 4 weeks/month = 96 cars/month
Therefore, Martin will have to wash 96 cars each month on average to meet his goal of washing 1,200 cars this year.
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Pls help. Questions 7-10
The key features of both equations are:
Equation 1 has a vertex at (1, -16) and opens upwards. Its axis of symmetry is x = 1
Equation 2 has a vertex at (2, 2) and opens upwards. Its axis of symmetry is x = 2.
How do we solve?To rewrite each equation in vertex form, we need to complete the square by adding and subtracting a constant from each equation.
y = x² - 2x - 15
y = (x - 1)² - 16
The vertex form of the equation is y = a(x - h)² + k, where (h, k) is the vertex. In this case, the vertex is (1, -16).
y = 2x² - 8x + 6
y = 2(x - 2)² + 2
The vertex form of the equation is y = a(x - h)² + k, where (h, k) is the vertex. In this case, the vertex is (2, 2).
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