The median provides Farrah with an understanding of the central value in her data set, which can help her analyze the overall distribution of the data points.
The median is a measure of central tendency that tells Farrah the middle value of her data when it is arranged in ascending order.
To find the median, Farrah should follow these steps:
1. Arrange her data in ascending order (from smallest to largest).
2. If there is an odd number of data points, the median is the middle value.
3. If there is an even number of data points, the median is the average of the two middle values.
It is less affected by outliers or extreme values than the mean, making it a more reliable representation of the center of her data.
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Dena and Joey share a 18-ounce box of cereal. By the end of the week, Dena has eaten 1/6 of the box, and Joey has eaten 2/3 of the box of cereal. How many ounces are left in the box?
There are 8 ounces of cereal left in the box.
Dena ate 1/6 of the cereal, leaving 5/6 of the box for Joey.
Joey then ate 2/3 of the box, which is equivalent to (2/3) × (5/6) = 10/18 of the box.
The amount of cereal left in the box is therefore 18 - 10 = 8 ounces.
Therefore, there are 8 ounces of cereal left in the box.
The function t relates the age of a plant fossil, in years, to the percentage, c, of carbon-14 remaining in the fossil relative to when it was alive.
Use function t to complete the statements.
A fossil with 47% of its carbon-14 remaining is approximately
years old.
A fossil that is 7,000 years old will have approximately
of its carbon-14 remaining.
it is known that carbon-14 has a half-life of approximately 5,700 years. This means that after [tex]5,700[/tex] years, half of the original carbon-14 in a sample will have decayed.
What is the half-life?Assuming that t is a function that relates the age of a plant fossil to the percentage of carbon-14 remaining, it can be expressed as:
[tex]t(c) = (ln(c/100) / ln(1/2)) \times 5,700 years[/tex]
where ln represents the natural logarithm.
Using this function, we can complete the statements as follows:
A fossil with 47% of its carbon-14 remaining is approximately 11,323 years old.
[tex]t(47) = (ln(47/100) / ln(1/2)) \times 5,700 ≈ 11,323 y[/tex] years
A fossil that is [tex]7,000[/tex] years old will have approximately 28% of its carbon-14 remaining.
[tex]t-1(7,000) = (ln(100/1) / ln(1/2)) \times 5,700 - 7,000 ≈ 23,200[/tex] years remaining
[tex]t-2(c) = (ln(c/100) / ln(1/2)) * 5,700[/tex]
[tex]c = 100 * e^(-7,000 / 5,700) ≈ 28% remaining.[/tex]
Therefore, In the second statement, we are using the inverse of the function t to find the percentage of carbon-14 remaining for a given age. We can write this as [tex]t-1(7,000) = c,[/tex] where c is the percentage of carbon-14 remaining for a fossil that is [tex]7,000[/tex] years old.
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Ken is buying wallpaper. It costs $6.49 per meter. He needs 512 feet. How much will
the wallpaper cost? Round to the nearest half dollar. Use 1 m~ 3.28 ft.
$1,014.00
$1,013.10
$1,013.00
$1,013.07
Answer:
c) $ 1013.00
Step-by-step explanation:
Cost per meter of wallpaper = $6.49
So, we need the amount needed to be in the same unit i.e. meters.
1 Feet = 0.3048
So, 512 Feet = 156.0576 or 156 meters.
Cost of total wallpaper = 156 * 6.49 = $ 1012.44
So, the option which matches 1012.44 here approximately is c) $ 1013.00
Answer:
1,013.00
Step-by-step explanation:
0.3048 meters =1 foot
156.058 meter=512.0013123feet
156.058* 6.49=1012.81642
since there is a 8 after the decimal round up
1,013.00
Raphael bought 2/3 pound bag of sugar. He used 3/4 of it for baking. How many pounds of sugar did he use?
Raphael bought a 2/3 pound bag of sugar, and he used 3/4 of it for baking.
To find out how much sugar he used, we need to multiply the fraction of the bag that he used (3/4) by the weight of the bag (2/3 pounds):
(3/4) x (2/3) pounds
To simplify this fraction multiplication, we can cancel out the factor of 3 in the numerator and the denominator:
(1/4) x (2/1) pounds
= 2/4 pounds
= 1/2 pound
Therefore, Raphael used 1/2 pound of sugar for baking.
question 1 of 10: over the last week, you had 100 customers who bought a total of 75 hotdogs at $2.00, 23 grilled cheeses at $4.00, and 28 cheeseburgers at $6.00. what was the average price paid per customer?
Answer:
150+92+168=410
Step-by-step explanation:
HELPPP PLEASEEE MARK BRAINLIEST ALGEBRA 2 3 variable problem
The number of touchdowns are 4, field goals are 2 and safeties are 2 for the given system of equation.
What is system of equation?A system of equations in algebra consists of two or more equations and looks for common answers to the equations. "A collection of equations fulfilled by the same set of variables is called a system of linear equations." Finding the values of the variables employed in a system of equations entails solving the set of equations. By keeping the equations balanced on both sides, we compute the values of the unknown variables. Finding the value of the variable that makes the condition of all the provided equations true is the primary goal when solving an equation system.
Let us suppose touchdowns = x.
Let us suppose field goals = y.
Let us suppose safeties = z.
Given that, they score point 8 times, thus:
x + y + z = 8
The total points scored are 38 thus,
7x + 3y + 2z = 38
Also,
x = (y + z)
Substituting the value of y + z in equation 1 we have:
x + x = 8
2x = 8
x = 4
Substitute the value of x in second equation:
7(4) + 3y + 2z = 38
28 + 3y + 2z = 38
3y + 2z = 10
Now, using x = (y + z). we have:
4 - z = y
Substitute the value of y:
3y + 2z = 10
3(4 - z) + 2z = 10
12 - 3z + 2z = 10
-z = -2
z = 2
Substitute the value of x and z:
x = (y + z)
4 = y + 2
y = 2
Hence, the number of touchdowns are 4, field goals are 2 and safeties are 2 for the given system of equation.
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From her house, Celine could drive due north to get to her parents' house or she could drive due east to get to her grandparents' house. It is 68 kilometers from Celine's house to her parents' house and a straight-line distance of 85 kilometers from her parents' house to her grandparents' house. How far is Celine from her grandparents' house? kilometers 0
Answer: /
Step-by-step explanation:
A rectangular field is 150 metres long and 100 metres wide. How many
times would a runner have to go around the field to run 2 kilometres?
Answer:
4 times
Step-by-step explanation:
Find the perimeter of the rectangular field
P=2(L+W)➡️ L is for length, W is for width
P=2(150+100)=2(250)=500m
After that, you need to convert 2KM into metres
So, 2×1000=2000m
Then divide the number of metres the runner would run by the perimeter of the rectangular field
2000/500=4 times
Therefore, the runner will go around the field 4 times
g a cylindrical can is to be made to hold 1.4 l of oil. find the dimensions that will minimize the cost of the metal to manufacture the can
The dimensions that will minimize the cost of the metal to manufacture the can are,
Radius = 4.08 cm
Height = 10.84 cm
To minimize the cost of the metal to manufacture the can, we need to minimize the surface area of the can. The surface area of a cylinder is given by
A = 2πrh + 2πr^2
where r is the radius of the cylinder, h is the height of the cylinder, and π is a constant equal to approximately 3.14159.
We are given that the can needs to hold 1.4 liters of oil. We can use this information to find the relationship between the radius and height of the cylinder. The volume of a cylinder is given by
V = πr^2h
Substituting the given volume of 1.4 liters (1400 cubic centimeters) and the constant π, we get
1400 = 3.14159r^2h
Solving for h, we get
h = 1400/(3.14159r^2)
Now we can substitute this expression for h in the formula for the surface area of the cylinder to get
A = 2πr(1400/(3.14159r^2)) + 2πr^2
Simplifying this expression, we get
A = (2800/πr) + 2πr^2
To minimize the surface area, we need to find the value of r that makes the derivative of A with respect to r equal to zero. Taking the derivative, we get
dA/dr = -2800/πr^2 + 4πr
Setting this equal to zero and solving for r, we get:
-2800/πr^2 + 4πr = 0
2800/πr^2 = 4πr
r^3 = 700/π
r ≈ 4.08 cm
Now we can use the formula for h in terms of r to find the corresponding value of h
h = 1400/(3.14159(4.08)^2) ≈ 10.84 cm
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a food marketing institute found that 34% of households spend more than $125 a week on groceries. assume the population proportion is 0.34 and a simple random sample of 196 households is selected from the population. what is the probability that the sample proportion of households spending more than $125 a week is less than 0.35?
The probability that the sample proportion of households spending more than $125 a week is less than 0.35 is 0.9884.
Using the given information, the population proportion of households spending more than $125 a week is 0.34. The sample size is 196 households.
Population proportion (p) = 0.34
Sample size (n) = 196
Sample proportion (p') = 0.35
Standard error of proportion (p') = √[p*(1-p)/n] = √[(0.34*0.66)/196] = 0.044
To find the probability that the sample proportion is less than 0.35, we need to find the z-score and then find the area to the left of that z-score using a standard normal distribution table.
z-score = (p' - p) / σp' = (0.35 - 0.34) / 0.044 = 2.27 (approx)
Using a standard normal distribution table, the area to the left of the z-score 2.27 is 0.9884.
Therefore, there is a roughly 0.9884 percent chance that the sample proportion of households paying more than $125 per week is less than 0.35.
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i need help to this homework
The value of cosec ( Ф/2 ) obtained using the double angles formula and half angle identity is : cosec ( Ф/2 ) = 5/√2.
Explain about the double angles formula?In trigonometry, the double angles for trigonometric functions are dealt with via the double angle formulas. Other significant double angle formulas include:
sin 2A = 2 sin A cos Acos 2A = cos2A - sin2Atan 2A = (2 tan A) / (1 - tan2A)cos Ф = 3/5
By using half angle identity:
cos( Ф/2 ) = ± √(1 + cosФ)/2
cos( Ф/2 ) = ± √(1 + 3/5)/2
cos( Ф/2 ) = ± √8/10
cos( Ф/2 ) = ± √2/5
In first quadrant:
cos( Ф/2 ) = +√2/5
Using reciprocal identity:
cosec ( Ф/2 ) = 1/ cos( Ф/2 )
cosec ( Ф/2 ) = 1/√2/5
cosec ( Ф/2 ) = 5/√2
Thus, the value of cosec ( Ф/2 ) obtained using the double angles formula and half angle identity is : cosec ( Ф/2 ) = 5/√2.
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If the area under the standard normal curve between z = -1.46 and z = 0 is 0.4279, then what is the area under the standard normal curve between z = -1.46 and z = 1.46? 0.0721 0.4279 0.8558 0.9279
Area under the standard normal curve is 0.8558.
What is method is used to calculate Area under the standard normal curve?To find the area under the standard normal curve between z = -1.46 and z = 1.46, follow these steps:
1. Find the area between z = 0 and z = 1.46: Since the area between z = -1.46 and z = 0 is given as 0.4279, and the standard normal curve is symmetrical, the area between z = 0 and z = 1.46 is also 0.4279.
2. Add the areas between z = -1.46 and z = 0, and between z = 0 and z = 1.46: 0.4279 + 0.4279 = 0.8558.
Area under the standard normal curve z = -1.46 and z = 1.46 is 0.8558.
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Question 4 of 5
Which algebraic rule describes the reflection of FG?
Therefore , the solution of the given problem of expressions comes out to be the picture of a point P(x,y) on FG will be P'(-x,y), which is P'reflected across the y-axis.
What is an expression?Instead of using approximations produced at random, it is better to use shifting integers that may prove increasing, reducing, or blocking. They could only help one another by sharing materials, information, or solutions to issues. The justifications, components, or mathematical remarks for techniques like additional disapproval, production, and mixture may be included in a statement of truth equation.
Here,
The x-coordinates of all the locations on FG are transformed when FG is reflected across the y-axis, but the y-coordinates stay the same. As a result, the algebraic formula that characterizes this reflection is as follows:
(-x, y)
As a result, the picture of a point P(x,y) on FG will be P'(-x,y), which is P'reflected across the y-axis.
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PLEASE HELP
write an equation that describes the line below:
a line has a slope of 2 and passes through the point (3, 1)
The equation of a line whose slope is 2 and passes through the point (3,1) is y=2x-5
An unending, one-dimensional figure with no width is a straight line. It consists of an infinite number of points connected on either side of a point. There is no curvature in a straight line. It might be angled, vertical, or horizontal. Every angle we draw between any two locations along a straight line will always be a 180-degree angle. We will explore the universe of straight lines in this mini-lesson by comprehending the equations of straight lines in various formats and learning how to answer problems based on straight lines.
The equation of a line whose slope is m and passes through the point (h,k),
y-k=m(x-h)
y=m(x-h)+k
We have a line with slope 2 and passes through the point (3,1)
y= 2(x-3)+1
y= 2x-6+1
y=2x-5
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Can someone PLEASE help me ASAP it’s due today!! I will give brainliest if it’s all done correctly.
Answer part A, B, and C for brainliest!!
A. The experimental probability of getting 3 = 8.3%
B. The probability of getting 6 = 25%
C. Probability of getting numbers less than 4 = 50%
The values have been represented in fractions and decimal below
How to solve the probabilityThe total number of times that the dice was thrown = 12
A. The total number of times that he got a 3 = 1The experimental probability of getting 3 =
As a fraction 1 / 12,
decimal 0.083
As a percentage 8.3%
B. The probability of getting 6The total number of times that he got a 6 = 3
The experimental probability of getting 6 = 3 / 12 = 1 / 4
As a fraction 1 / 4
decimal 0.25
As a percentage 25%
3. Probability of getting numbers less than 4numbers less tan 4 are , 1, 2 and 3
The number of times they occurred = 6
The experimental probability of getting > 4 = 6 / 12 = 1 / 2
As a fraction = 1/2
As a decimal = 0.5
As a percent = 50%
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You randomly select a seashell from a collection and record the type of shell. The types of the first 90 shells you select are shown.
What is the experimental probability that you select a Moon Snail?
The experimental probability of selecting a Moon Snail is approximately 0.16.
What is probability?Probability is the branch of mathematics concerned with measuring the likelihood or probability of an event occurring.
It is a numeric value from 0 to 1, with 0 indicating that the event is not possible and 1 indicating that the event is certain to occur.
The experimental probability of selecting a Moon Snail can be calculated by dividing the number of Moon Snails by the total number of seashells selected.
The total number of seashells selected is:
33 + 14 + 8 + 15 + 20 = 90
The number of Moon Snails selected is 14.
So the experimental probability of selecting a Moon Snail is:
14/90 = 0.155 or approximately 0.16
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the clothes washer in your house consumes 198 kwh of energy per year. price of the washer is $389 and the lifetime of the washer is 14 yrs. energy price in your city is 8 cents per kwh. what is the lifecycle cost of the clothes washer (unit:$)? (assumes a maintenance cost of $17 per year). answer to two decimal places without unit.
The lifecycle cost of the clothes washer is $1,032.68.
The lifecycle cost of the clothes washer is $1,104.20. Here's how to compute it:Given:Energy consumed by the clothes washer = 198 kWhPrice of the washer = $389Lifetime of the washer = 14 yearsEnergy price in the city = 8 cents per kWhMaintenance cost = $17 per yearFormula: Lifecycle cost = (purchase price + (energy price x energy consumed) + (maintenance cost x lifetime)) / lifetimeLet's substitute the given values in the formula:Lifecycle cost = ($389 + ($0.08 x 198 kWh) + ($17 x 14)) / 14Lifecycle cost = ($389 + $15.84 + $238) / 14Lifecycle cost = $642.84 / 14Lifecycle cost = $45.92 (rounded to two decimal places).
The lifecycle cost of the clothes washer is $45.92 per year. To find the total lifecycle cost, multiply it by the lifetime of the washer:Total lifecycle cost = $45.92 x 14Total lifecycle cost = $643.68Add the initial cost of the washer to get the final answer:Final answer = $643.68 + $389Final answer = $1,032.68 (rounded to two decimal places)
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Find the surface area of the triangular prism.
A drawing of a triangular prism. The base is a right triangle with base 9 inches, height 12 inches, and third side 15 inches. The height of the prism is 29 inches.
The surface area is
square inches.
The surface area of the triangular prism is 1152 inches square.
How to find the surface area of a triangular prism?The triangular prism has the base as a right triangle with base of 9 inches, height of 12 inches and third side of 15 inches. The height of the prism is 29 inches.
Therefore,
surface area of a triangular prism = bh + l(s₁ + s₂ + s₃)
where
b = base of the right triangleh = height of the right trianglel = height of the prisms₁, s₂ and s₃ are the sides of the right trianglesurface area of a triangular prism = 9 × 12 + 29(9 + 12 + 15)
surface area of a triangular prism = 108 + 29(36)
surface area of a triangular prism = 108 + 1044
surface area of a triangular prism = 1152 inches
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Which of the following are subsets
Therefore , the solution of the given problem of number line comes out to be D, {-6}, {-3}, {5}, {-6, -3}, {-6, 5}, {-3, 5}.
What is number line?The number line, a representation of real numbers in visual form, is a tool for teaching arithmetic. An energy line is depicted by it. Every actual number is used to represent a integer in the genuine number, or every exact number is used to represent a position. The separations between increments on a number line are identical. The numbers in a line can only be replied in the manner indicated by those numbers.
Here,
The set D = "-6, -3, 5" can be divided into a wide variety of subgroups, including:
Since the empty set is a subset of every set, D is a subset of the empty set.
The set D is a subgroup of itself.
=> Because -6 is an element of D, the collection "{-6}" is a subset of D.
=> Because -3 is an element of D, the collection "{-3}" is a subset of D.
=> Because 5 is an element of D, the collection "{5}" is a subset of D.
Due to the fact that both -6 and -3 are components of D, the set "{-6, -3}" is a subset of D.
=> Because both -3 and 5 are elements of D, the collection "{-3, 5}" is a subset of D.
Consequently, the subgroups of D are:, D, {-6}, {-3}, {5}, {-6, -3}, {-6, 5}, {-3, 5}.
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is y=10(1−0.04)x growth or decay
When b > 1, the function f (x) = bx represents exponential development. If 0 b 1, then the function f (x) = bx depicts exponential decay.
What are functions?A relation is any subset of a Cartesian product.
As an illustration, a subset of is referred to as a "binary connection from A to B," and more specifically, a "relation on A."
A binary relation from A to B is made up of these ordered pairs (a,b), where the first component is from A and the second component is from B.
Every item in a set X is connected to one item in a different set Y through a connection known as a function (possibly the same set).
A function is only represented by a graph, which is a collection of all ordered pairs (x, f (x)).
Every function, as you can see from these definitions, is a relation from X.
Hence, Exponential growth and decay are the two different kinds of exponential functions.
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there are 75 animals on a farm 48 of them are sheep what percentage of the animals are sheep
y= 3/5x -7
is it a function?
Answer:
D
Step-by-step explanation:
y2= -13x+102 as an irrational equation
To write the equation y = -13x + 102 in irrational form, we need to isolate x on one side of the equation.
First, let's subtract y from both sides to get:
-y + y2 = -13x + y2 + 102
Next, let's divide both sides by -13 to get:
x = (-1/13)y2 + (1/13)y - (102/13)
Therefore, the irrational equation of y2 = -13x + 102 is:
x = (-1/13)y^2 + (1/13)y - (102/13)
Takiya recorded the heights of two sets of plants, one set planted in the shade and one set planted in full sun. Her data are shown in the plots below.
A dot plot. A number line going from 1.5 to 4.5 in increments of 0.5 is labeled Heights of Shaded plants (inches). There are 0 dots above 1.5, 4 above 2, 3 above 2.5, 2 above 3, 0 above 3.5 and 4, and 1 above 4.5.
A dot plot. A number line going from 1.5 to 4.5 in increments of 0.5 is labeled Heights of Full Sun plants (inches). There are 0 dots above 1.5, 1 above 2, 0 above 2.5, 2 above 3, 0 above 3.5, 4 above 4, and 3 above 4.5.
Which best explains the variability of the sets?
Answer:
The shaded plants set has greater variability because more data is clustered around the median. "NC"The sets are equally variable because the ranges of the data sets are equal.The full sun plants set has greater variability because the IQR for full sun plants is greater. The full sun plants set has greater variability because the median for full sun plants is greater.
Step-by-step explanation:
The shaded plants can always get a greater variability because remember more data around the median. The sets would eventually equal the variable.
Sun plans can get greater variability because the median can always be used for sun plants and which is being called greater.
help me on this assignment youll get ten points
Volume = Length * Width * Height
Length = l = 15,5 in = 393,7 cm
Width = w = 11,2 in = 284,48 cm
Height = h = 8 in = 20,32 cm
Volume = 15,5 * 11,2 * 8 = 1388,8 in or 35275.52 cm
a painter wants to mix 2 litres of blue paint with 3 litres of yellow paint to obtain 5 litres of green paint. he accidentally uses 3 litres of blue paint and 2 litres of yellow paint and thus produces the wrong shade of green. what is the minimum amount of this green paint he has to throw away so that he can use the rest to add blue or yellow paint in order to get exactly 5 litres of the correct shade of green?
The minimum amount of green paint he has to throw away so he can use rest to add blue or yellow paint in order to get exactly 5 liters of correct shade of green is 5/3 liter.
We know that "original-shade" of green color requires "2-liters" of blue paint and "3-liters" of yellow paint.
So, the original-ratio of "yellow-paint" to "total-paint" is = 3 : 5,
He mixes 3-litres of "blue" and 2-litres of "yellow" for 5 liters of paint,
So, he has more blue-paint in mixture than it is required to make green color,
He needs to throw some of green-paint and add yellow-paint to get required shade-of-green.
Let the painter throw away "x-liters" of paint from his mixture and adds "x-liters" of yellow-paint into mixture.
So, New mixture will have same ratio as 3:5,
So, the equation in x is,
⇒ (2/5)×(5 - x) + x = (3/5)×5,
⇒ 2 - (2/5)x + x = 3,
⇒ (3/5)x = 1,
⇒ x = 5/3.
Therefore, the painter needs to throw away 5/3 liters of paint.
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Mei and anju are sitting next to each other on different horses on a carousel. mei’s horse is 3 meters from the center of the carousel. anju’s horse is 2 meters from the center. after one rotation of the carousel, how many more meters has mei traveled than anju? a. more meters 2b. more meters 4c. more meters 5d. more meters
After one rotation of the carousel, after 6.2 more meters has Mei traveled than Anju.
Circumference of Circle:
The circumference of a circle or the circumference of a circle is a measurement of the limit of a circle. Whereas the area of a circle defines the area it occupies. If we open a circle and draw a line through it, its length is the circumference. It is usually measured in units such as centimeters or units of meters.
As we know carousel is circular
Therefore,
distance covered will be the circumference of a circle
Now,
we know that the circumference of the circle = 2πr where r is the radius
Mei's horse is 3 m away from the carousel i.e r = 3 m
Distance covered by Mei's = 2π × 3 = 6π m
Anju's horse is 2 m away from the carousel i.e r = 2 m
Distance covered by Anju = 2π × 2 =4π
Mei traveled more = 6π - 4π = 2π m
≈ 6.2 m
Complete Question:
Mei and Anju are sitting next to each other on different horses on a carousel. Mei’s horse is 3 meters from the center of the carousel. Anju’s horse is 2 meters from the center. After one rotation of the carousel, how many more meters has Mei traveled than Anju?
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3 |x+7| - 18=0 Determine the solutions to the absolute value equation. (List the smallest number first).
Answer: -25 and 11
solution:
|x+7| - 18 = 0
|x+7| = 18
±x = 18 ± 7
x = -25, 11
Solve this system of equations using the substitution method. Y=3x+1 and 2x+6=y
the solution to this system of equations is x=5 and y=16.
2x + 6 = 3x + 1
Subtract 2x from both sides:
6 = x + 1
Subtract 1 from both sides:
5 = x
Solve for y:
y = 3(5) + 1
y = 16
The substitution method is used to solve a system of equations by replacing one of the variables with an expression containing the other variable. In this system of equations, we have Y=3x+1 and 2x+6=y. To solve this, we start with the second equation and subtract 2x from both sides to get 6 = x + 1. Subtracting 1 from both sides gives us 5 = x. Now that we have x = 5, we can use this to solve for y. We substitute 5 for x in the first equation, giving us y = 3(5) + 1, which simplifies to y = 16. Therefore, the solution to this system of equations is x=5 and y=16.
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PLS HELLL ILL MARK U BRAINLIST IF U EXPLAIN UR ANSWER
Answer:
Should be A
Step-by-step explanation: