Answer:
9x
Step-by-step explanation:
9 packages and x pencils
9x
Find the surface area of each rectangular prism
Length = 12.7
Height = 4.3
Width = 8.1
Answer:
length =12.7
Breadth=4.
Width=8.1
here,
area = 384.62
Y = -3x + 7
Y = 8x - 6
30x-5y = 25
20x + 10y = 90
-3x + 3y = 18
Answers:
Positive slopes:
Y = 8x - 6 with a slope of 8.
30x - 5y = 25 with a slope of 6.
Negative slopes:
-3x + 3y = 18 with a slope of -1.
Y = -3x + 7 with a slope of -3.
20x + 10y = 90 with a slope of -2.
Step-by-step explanation: Have a great day! :)
Answer:
Positive Slopes
2) y = 8x - 6
3) y = 6x - 5
5) y = 1x + 6
Negative Slopes
1) y = -3x + 7
4) y = -2x + 9
(Bold numbers indicate the slopes)
Step-by-step explanation:
y = mx + b is the slope intercept form of writing the equation of a straight line. In the equation 'y = mx + b', 'b' is the point, where the line intersects the 'y axis' and 'm' denotes the slope of the line. The slope or gradient of a line describes how steep a line is.
y = mx + b
m ~ slope of the line
b ~ intercept of the line
[tex]3) \: \: 30x - 5y = 25 \\ 30x - 25 = 5y \\ \frac{30x - 25}{5} = \frac{5y}{5} \\ 6x - 5 = y \\ \\ y = 6x - 5[/tex]
[tex]4) \: \: 20x + 10y = 90 \\ 10y = - 20x + 90 \\ \frac{10y}{10} = \frac{ - 20x + 90}{10} \\ y = - 2x + 9 \\ [/tex]
[tex] 5) \: \: - 3x + 3y = 18 \\ 3y = 18 + 3x \\ \frac{3y}{3} = \frac{18 + 3x}{3} \\ y = 6 + x \\ \\ y = x + 6[/tex]
The president of the math club is conducting a survey to see where the twelfth-grade class wants to go on their field trip. Instead of asking the whole class, she surveys only the twelfth-grade members of the math club. She records their choices and plans to present the results to the school principal. What type of sampling did she use? systematic random sampling simple random sampling stratified sampling convenience sampling.
The type of sampling that the teacher used is of the type: Option D: Convenience sampling
What is simple random sampling?If the sampling is done from the population randomly, without any other rule, then such sampling is called simple random sampling. Items are selected in a fixed size, all randomly.
What is stratified sampling?Sampling which is done by taking the main population divided in categories(called strata), then such sampling from stratas (sub-parts of the population) is called stratified sampling.
What is systematic random sampling?In this type of sampling, starting of the sampling is done randomly, but then rest of the samples are collected by an order. Like for example, first point is selected randomly, then all points are selected that they are equidistant from each other in the population.
What is convenience sampling?The word "convenience" summarizes this sampling. It is done in a way that those values from population are sampled which are in convenience with the researcher. Like if some random picking is to be done from beads spread on the ground, then the researcher picking those beads which are closer to him.
So, the math teacher took the sample from a specific part of the whole twelfth class. That's a strata. But sampling was done "only" from 1 strata, which is useless as field trip's data should be taken from other parts of the population too where students might be interested to go for field trip. Thus, its a wrong method of sampling.
That's more of like convenience sampling instead of stratified, where the teacher preferred convenience instead of proper sampling (as the sampling she did is not showing any proper ideology that she might've followed).
Thus, the type of sampling that the teacher used is of the type: Option D: Convenience sampling
Learn more about sampling techniques here:
https://brainly.com/question/24842573
Answer:
D. Convenience sampling
Step-by-step explanation:
2022
Write an essay on Drug Addiction.
Answer:
Drug abuse and addiction are a major burden to society. Drug addiction is a pathological or abnormal condition which arises due to frequent drug use. The disorder of addiction involves the progression of acute drug use to the development of drug-seeking behavior, the vulnerability to relapse, and the decreased, slowed ability to respond to naturally rewarding stimuli. Causes Drugs known to cause addiction include illegal drugs as well as prescription or over-the-counter drugs, according to the definition of the American Society of Addiction Medicine.
One very common belief is that drug abusers should be able to just stop taking drugs if they are only willing to change their behavior. What people often underestimate is the complexity of drug addiction — that it is a disease that impacts the brain and because of that, stopping drug abuse is not simply a matter of willpower. Through scientific advances we now know much more about how exactly drugs work in the brain, and we also know that drug addiction can be successfully treated to help people stop abusing drugs and resume productive lives. People think of drug abuse and will only think of illegal drugs like marijuana or cocaine. The truth is that there are a large number of people who are abusing drugs that are legal and prescribed only by doctors. There is a study done by the United Nations that says that the number of people who are addicted to legal prescription drugs is close to the number of people who are addicted to illegal drugs. In this study the drug abuse and addiction it isn’t about consumption but more on consequences. If your drug addiction starts to affect your everyday life you most likely you’re a drug abuser or you have an addiction problem. Drug abuse and addiction can have many effects on the brain. These repeated usages of drugs can cause the way your brain’s appearance and function.
So what is drug abuse and why do we become addicted to certain drugs? Substance abuse, also known as drug abuse, is a patterned use of a substance (drug) in which the user consumes the substance in amounts or with methods neither approved nor supervised by medical professionals. Addiction is the continued use of a mood altering substance or behavior despite adverse dependency consequences, or a neurological impairment leading to such behaviors. The number in India is 3-5 million, 2 million of which are in Delhi alone. In India, there are one million heroin addicts, 2 million opium addicts and several million cannabis addicts. It may be mentioned that the ratio of drug abusers to alcoholics having serious alcohol abuse problems is 1 : 30. A Drug is any substance (other than food) that produces changes in the physical or mental functioning of an individual, and the Drug Use is taking a drug for medical purpose like treating an illness, protecting the body against the disease or to relieve pain or tension. Traditional definitions of addiction, with their criteria of physical dependence and withdrawal (and often an underlying tenor of depravity and sin) have been modified with increased understanding; with the introduction of new drugs, such as cocaine, that are psychologically or neuropsychologically addicting; and with the realization that its stereotypical application to opiate-drug users was invalid because many of them remain occasional users with no physical dependence.
To conclude, addiction is more often now defined by the continuing, compulsive nature of the drug use despite physical and/or psychological harm to the user and society and includes both licit and illicit drugs, and the term “substance abuse” is now frequently used because of the broad range of substances (including alcohol and inhalants) that can fit the addictive profile. There are many different types of drugs you should be aware of.
Step-by-step explanation:
100 POINTS!!!
If you have a line perpendicular to the line given by the equation
, what would be the slope of the perpendicular line?
EXPLAIN YOUR ANSWER
Answer:
5/4
Step-by-step explanation:
y intercept does not matter
formula is -1/slope
this works because making it negative reflects it over the y axis, and the reciprocal adjusts the angle
Arrange the children in ascending order of their weights.
Nayana : 28.76 kg
Aman:32.63 kg
Asif: 32.36 kg
Alka: 31.05 kg
Answer:
Nayana: 28.76 kgAlka: 31.05 kgAman: 32.63 kgAsif: 32.63 kgStep-by-step explanation: Ascending means increasing, so arrange the weights from the smallest to the biggest.
The weights are all in kilograms (kg) so no conversion is needed. Just arrange the weights by the numbers, 28.76 is the smallest here, and 32.63 is the biggest number, and it is repeated, so in that case the order doesn't matter.
Aman can come before Asif and vice versa since they have the same weights.
Alexandra is following a recipe that requires three fourths cup of water. She needs to make 10 servings. How many cups of water does Alexandra need?
I'm just asking and if i'm wrong pls show me the correct way so to find the surface area of a cylinder it is
find the circumference multiply it by two and then multiply it by the height???
i tried watching videos and i- just help :/
Answer:
C (Circumference) = π r²h
V (Volume) = π r²h
What is 4573 - 3892?
Answer:
The answer is 681.
681
would be your answer when subtracting 4573 - 3892
Complete the expression equivalent to 24r + 36, using the greatest common factor (GCF) of the two terms
Answer:
Amusement parks, penny arcades, dance halls, and other commercial amusements flourished. As early as 1910, when there were 10,000 movie theaters, the movies had become the nation's most popular form of commercial entertainment.
(a) At swim practice, Lucas swam n laps, took a break, and then swam c more laps. Write the expression that represents the total number of laps that Lucas swam. List the keywords and the operations, write the math expression and provide explanation of how you solved.
(b) Sadie brought 9 marbles to the park and put them together with Juliana’s u marbles. They then decide to share them equally with 10 friends. List the keywords and the operations, write the math expression and provide explanation of how you solved.
(c)Gerald ran m miles yesterday. Amanda ran 2 miles less than half the miles that Gerald ran. Write an expression that represents the number of miles that Amanda ran. List the keywords and the operations, write the math expression and provide explanation of how you solved.
Answer:
a is C+N=N+C
Step-by-step explanation: NOT TO SURE HOPE THIS HELPED
What is the closest integer to 190?
Answer:
When a number is halfway between the two possible numbers, round up to the greater number. Since 186 is between 180 and 190, and 186 is closer to 190, you round up to 190. You can use a number line to help you round numbers.
Step-by-step explanation:
I need some help with this one please and thanks.
Answer:
Volume = 7,241.142 ft^3
Step-by-step explanation:
4 × 22 ×12×12×123. 7
506887
7,241.14285714I hope it will be helpfulHELPPPPP WILL MARK BRAINLEST Use the following information and diagram to answer the question.
Given: Quadrilateral ABDC has vertices at A(2,6), B(6,8), C(1,2), and D(5,4).
Prove: Quadrilateral ABDC is a parallelogram.
Which plan for a proof for this problem will show that quadrilateral ABDC is a parallelogram?
1.Use the midpoint formula to find the midpoint of AB¯¯¯¯¯¯¯¯ and CD¯¯¯¯¯¯¯¯. Show that the midpoint of these two sides has the same x-coordinate. Then, show that the midpoint of BD¯¯¯¯¯¯¯¯ and AC¯¯¯¯¯¯¯¯ has the same y-coordinate. Thus, the quadrilateral is a parallelogram.
2.Use the midpoint formula to find the midpoint of AD¯¯¯¯¯¯¯¯ and BC¯¯¯¯¯¯¯¯. Show that the midpoint for both segments is the same. Since the diagonals of a quadrilateral intersect each other, then the quadrilateral is a parallelogram.
Use the midpoint formula to find the midpoint of line segment cap A cap d and Show that the midpoint for both segments is the same. Since the diagonals of a quadrilateral intersect each other, then the quadrilateral is a parallelogram.
3.Use the midpoint formula to find the midpoint of line segment cap A cap d and Show that the midpoint for both segments is the same. By the definition of midpoint and bisect, line segment cap A cap d and line segment cap b cap c bisect each other. Since the diagonals of a quadrilateral bisect each other, then the quadrilateral is a parallelogram.
4.Use the midpoint formula to find the midpoint of AB¯¯¯¯¯¯¯¯ and CD¯¯¯¯¯¯¯¯. Show that the midpoint for both segments is the same. Since opposite sides of a quadrilateral have the same midpoint, then the quadrilateral is a parallelogram.
Answer:
According to one study, brain weights of men are normally distributed with a mean of 1.50 kg and a standard deviation of 0.14 kg.
For samples of 12 men, the possible sample mean brain weights have a normal distribution with a mean of 1.50 kg and a standard deviation of 0.0404 kg.
Problem: Determine the percentage of all samples of 12 men that have mean brain weights within 0.1 kg of the population mean brain weight of 1.50 kg. Interpret your answer in terms of sampling error.
The sides of a rectangle are in the sides of a rectangle are in the ratio 7:3. The perimeter of the rectangle is 40cm. Find the area of the rectangle
Answer:
28 cm and 12 cm
Step-by-step explanation:
I didn't use math for this one I just used logic lol
Multiply 7 by 4 and 3 by 4, you get 28 and 12, 28+12=40
Giving out high rates , likes , and Brainly
Answer:
16
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HIGH POINT QUESTION
A shape is rotated 180 degrees about the origin and then its image is reflected in the Y-axis. Describe fully the single transformation that would have the same result as the two transformations described above.
Answer:
Reflection in the x-axis
Step-by-step explanation:
If the point (x, y) of the shape is rotated 180° about the origin, it will be transformed into the point (-x, -y).
If the point (-x, -y) is reflected in the Y-axis, it will be transformed into the point (x, -y). This transformation is equivalent to the reflection of (x, y) in the x-axis.
8) Jasmine had some candy to give to her
three children. She first took four pieces
for herself and then evenly divided the rest
among her children. Each child received
two pieces. With how many pieces did
she start?
Answer:
She started with 10 candies.
Step-by-step explanation:
Answer:
She started with 10 pieces of candy.
Step-by-step explanation:
If she had 4 pieces for herself and then divided the rest of the candy amongst her 3 children, and they each recieved 2 pieces. (4 + 2 + 2 + 2)
PLZ HELPP!!! THIS IS DUE!!
This week we worked on inequalities with two variables. We used graphing to show what the inequalities looked like.
Question # 1: Describe a test you can use to see if a coordinate pair is the solution to an inequality using its graph.
Question #2: Which kind of line ( solid or dashed) is used for ?
Question #3: Now that we can graph an inequality in two variables>>> What do you think we will be trying to learn next week ?
Answer:
1. you have to describe a test so just tell of a test you took that was about graphing and has the symbols <, ≤, ≥, >
2. > or < is dashed line
≥ or ≤ is solid line
3. what do you think?
Step-by-step explanation:
7/10 ÷5/12 simply step by step
Answer:
[tex]1\frac{17}{25}[/tex]
Step-by-step explanation:
[tex]\frac{7}{10}\div \frac{5}{12}[/tex]
[tex]\mathrm{Apply\:the\:fraction\:rule}:\quad \frac{a}{b}\div \frac{c}{d}=\frac{a}{b}\times \frac{d}{c}[/tex]
[tex]=\frac{7}{10}\times \frac{12}{5}[/tex]
[tex]=\frac{7}{5}\times \frac{6}{5}[/tex]
[tex]\mathrm{Multiply\:fractions}:\quad \frac{a}{b}\times \frac{c}{d}=\frac{a\:\times \:c}{b\:\times \:d}[/tex]
[tex]=\frac{7\times \:6}{5\times \:5}[/tex]
[tex]\mathrm{Multiply\:the\:numbers:}\:7\times \:6=42[/tex]
[tex]=\frac{42}{5\times \:5}[/tex]
[tex]\mathrm{Multiply\:the\:numbers:}\:5\times \:5=25[/tex]
[tex]=\frac{42}{25}[/tex]
Mixed Fraction:
1 17/25
~Lenvy~
What is the domain of the following relation?
{(-3, 3), (1, 1), (0, -2), (1, -4), (5, -1)}
-3,0,1,5
Step-by-step explanation:
in coordinates, x is domain and y is range. however if u have 2 or more of a number of x, just put it once. for example
(2,5) (5,8) (1,4) (2,3) (1,2)
domain: 1, 2, 5
range: 2, 3, 4, 5, 8
hope this helps
Which values are outliers? 6. 1, 3. 9, 6. 4, 10. 6, 4. 4, 4. 5, 1. 6, 11. 2, 0. 8, 3. 9, 6. 5 Select Outlier or Not Outlier for each data point.
Answer:
10 and 11
Step-by-step explanation:
An outlier is a number that is much larger or smaller than the general populous of numbers. For example, if there was a dot plot with dots clustered at 2, 3, and 5, but there was one or two dots around 10, then 10 would be considered an outlier.Let's put the numbers in order to see easier which numbers are outliers. I will not copy down repeating numbers.0, 1, 2, 3, 4, 5, 6, 10, 11.10 and 11 are isolated <3If I am incorrect in my reasoning, please let me know so that I can plan better for my future answers. Have an amazing day.
1. Mrs. Galicia is building a chicken farm in 2021 with an initial population of 3750 chickens. The farm grows at a rate of 2.15% annually. (a) Use the exponential growth model to write an equation that estimates the population t years after 2021. (b) Estimate the population of the town in 2036.
show plug in step before using calculator Answer:
The population of the chicken after 15 years in 2036 will be 5177.
What is an exponential growth model?The exponential growth model is given by the equation, [tex]y=y_oe^{rt}[/tex], where y is the population after t years, y₀ is the initial population, r is the rate of growth, and t is the time.
As it is given that the initial chicken population in the year 2021 is 3750, while the rate at which the population is increasing is 2.15% annually.
A.) The exponential growth model to write an equation that estimates the population t years after 2021.
The exponential growth model can be written as,
[tex]y=y_oe^{rt}\\\\y=3750e^{0.0215t}[/tex]
B.) The population of the town in 2036,
As the population is increasing for the next 15 years(2036-2021). Therefore, The population of the town in 2036 can be written as,
[tex]y=3750e^{0.0215t}\\\\y=3750e^{0.0215\times 15}\\\\y= 5177.1558\approx 5177[/tex]
Hence, the population of the chicken after 15 years in 2036 will be 5177.
Learn more about Exponential growth model:
https://brainly.com/question/13223520
solve pls brainliest
Find the slope (15 points)
Answer:
-5/3
Step-by-step explanation:
We pick two points on the line
(0,4) and ( 3, -1)
Then use the slope formula
m = ( y2-y1)/ (x2-x1)
= ( -1-4)/(3-0)
= -5/3
Answer: -5/3
Step-by-step explanation: The function follows the slope of rise 5 units, run 3.
A lawn sprinkler located by a driveway is set to rotate 180° and project water 15 feet. What is the area of the lawn that is being watered? Round your answer to the nearest tenth of a square foot
Answer:
353.4 square feet
Step-by-step explanation:
radius = 15 feet
Area of circle = pie x r^2
(but this is a semi circle as its 180 degrees so half it)
(pie x 15^2) / 2 = 353.429
353.4
Which of the following is equal to -11?
Answer:
-11
(-11)
-10 + -1
-9 + -2
-8 + -3
-7 + -4
Answer:
(3*(47/53*69^4)^(3/3)×x⁵/(9-56)/x)×0 - 11 = -11
im smart....
The distance from the center of a circular tent to the tent’s edge is 50 feet. Kelly walked around the edge of the tent twice and then straight to the center of the tent. About how far did Kelly walk?
Answer:
678.32 feet
Step-by-step explanation:
Circumference=2π(radius)=2·π·50≈314.15927
314.15927·2=628.31854
628.31854+50=678.31854
Answer:
678 ft (nearest foot)
Step-by-step explanation:
The distance from the center of a circle its edge is its radius.
Given that the distance from the center of a circular tent to the tent’s edge is 50 ft then:
⇒ radius (r) = 50
The edge of a circle is its circumference
Circumference of a circle = [tex]2\pi r[/tex] (where r is the radius)
Therefore, the circumference of the tent is:
[tex]\implies 2 \cdot \pi \cdot 50=100\pi[/tex] ft
If Kelly walked around the edge of the tent twice, then walked straight to the center:
⇒ total distance walked = 2 × circumference + radius
= 2 × [tex]100\pi[/tex] + 50
= 678.3185307...
= 678 ft (nearest foot)
MULTIPLE CHOICE QUESTION
Which coordinate of the IMAGE should be the OPPOSITE when it is reflected over the X-AXIS?
Y-CORDINATE or X-COORDINATE?
Answer:
(-4, 5)
Step-by-step explanation:
x will never change if reflected over it. but y will be negative. also what do you mean by y coordinate or x coordinate?
Answer:
-4,5
Step-by-step explanation:
Helppppp! What is a cube root?
a
a number which produces a specified quantity when multiplied by itself.
b
A 6 sided shape
c
a quadrilateral with a line of symmetry bisecting one pair of opposite sides
d
a special value that, when used in a multiplication three times, gives that number.
Answer:
your answer is d. - A special value that when used in a multiplication three times gives that number
Step-by-step explanation:
Hope this helps you
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