Answer:
If it INCREASES then it is going closer towards zero since it is negative. So subtract 8 from (-7) and you get -15
so D is your answer
h(x)=x³+2x+5 what's the domain and the range?
Random Question
Mr Sire purchases a bicycle for $163.62. How much cash will he need to pay?
plssss help me Po plsssssssss
Answer:
Step-by-step explanation:
3x(x+6)=-10
Please explain how to solve!
Answer:
just look at picture
Step-by-step explanation:
Hope this helps :)
29. Find CD.
30. Find ZV.
Answer:
for cd it's 12 I believe fs
Education researchers are interested in the workload expectations of freshmen at a local university. Which of the
following techniques would give a stratified random sample?
Randomly select 10 freshmen from each of the majors at the university
Randomly select 10 freshmen from the cafeteria on each of the 5 days of the first school week.
Randomly select 1 professor at the university and have them survey all of their freshman students.
Survey the students in some randomly selected freshman seminar classes, since freshmen are randomly put into
those classes
Answer:
A: Randomly select 10 freshmen from each of the majors at the university.
Step-by-step explanation:
This is because stratified random sampling is taking a population and dividing them into subpopulations. So, majors would be the best way to divide up college freshmen into different subsections to survey them about their workloads because each major would have a different answer and result.
The techniques to give a stratified random sample would be A: Randomly select 10 freshmen from each of the majors at the university.
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.
The best sampling is simple random sampling, as it is randomly picking data values from the population.
Stratified random sampling it is taking a population and dividing them into subpopulations.
The majors would be the best way to divide up college freshmen into different subsections to survey them about their workloads because each major would have a different result.
The techniques to give a stratified random sample would be A: Randomly select 10 freshmen from each of the majors at the university.
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АВС аnd
APQR are similar. Find the missing side length.
Solve for x
-1/5x-2/5=4/3x+1
Answer:
x = -21/23 or 0.913 (rounded to the nearest thousandth)
Step-by-step explanation:
Step 1: Add 2/5 to both sides
1. -1/5x - 2/5 + 2/5 = 4/3x + 1 + 2/5
2. -1/5x = 7/5 + 4/3x
Step 2: Subtract 4/3x from both sides
1. -1/5x - 4/3x = 7/5 + 4/3x - 4/4x
2. -23/15x = 7/5
Step 3: Multiply both sides by 15
1. (15)-23/15x = 7/5(15)
2. -23x = 21
Step 4: Divide both sides by -23
1. -23x/-23 = 21/-23
2. x = -21/23 or 0.913 (rounded to the nearest thousandth)
Helppp pleaseeee 10 points
Answer:
x ≥ 3
Step-by-step explanation:
Solve for x by dividing both sides by -7. When dividing by a negative, you have to flip the inequality.
-7x ≤ -21
-7x/-7 ≤ -21/-7
x ≥ 3
Since it is greater than or equal to, put a closed circle over 3 with the arrow going right -------->
Help PLEASEEE!!!
Given that AC=30, AB=5x-21, BC=3y+4, CD=2x-3, and DA=4x+1, find the indicated variables for each question. Find the value of x, y, z.
Answer:
x = 6
y = 7
z = 23
Step-by-step explanation:
ÀC = z + 7
30 = z + 7
30 - 7 = z
z = 23
2x - 3 = 5x - 21
21 - 3 = 5x -2x
18 = 3x
x = 18÷3
x = 6
4x + 1 = 3y + 4
4(6) + 1 = 3y + 4
25 = 3y + 4
3y = 25 - 4
y = 21 ÷ 3
y = 7
please mark as brainliest i appreciate so much
Which of the following is equivalent to 4 square root of 12 minus square root of 27 plus 5 square root of 3?
Answer:
The answer is 10 square root of 3
Step-by-step explanation:
Hope this helps!
what is the value of 5 at is used in this 102,587
Answer:
hundreds
Step-by-step explanation:
It is the third digit from right which is 100
Another example say 700 what is the value of the 7=hundreds because it it 3rd digit from right
Hope it helps :)
Solve the following inequality. Then place the correct answer in the box provided. Answer in terms of an mixed number. 8P + 2 > 3P - 15
Answer:
8p+2 3p-15-2
5->-17
p>-17/15
Step-by-step explanation:
Find the value of k for which the line y = kx + 6 is a tangent to the curve x^2 + y^2 – 10x + 8y = 84
Answer:
k = 1/2
Step-by-step explanation:
input y = kx +6 into the equation of the curve x² + y² – 10x + 8y = 84
x² + (kx + 6)² - 10x + 8(kx + 6) = 84
expand:
x² + k²x² + 12kx + 36 - 10x + 8kx + 48 = 84
simplify by collecting like terms:
x² + k²x² + 20kx - 10x + 84 = 84
subtract 84 on both sides to bring it to the left:
x² + k²x² + 20kx - 10x + 84 - 84 = 0
x² + k²x² + 20kx - 10x = 0
factorise out x:
x²(1 + k²) + x(20k - 10) = 0
using the discriminant b² - 4ac where b is 20k - 10, a is 1 + k² and c is 0, substitute them in the formula b² - 4ac:
b² - 4ac
(20k - 10)² - 4(1 + k²)(0) = 0
the part highlighted in bold is gone because it's all multiplied by 0, so we are left with (20k - 10)² = 0
(20k - 10)² is the same as
(20k - 10)(20k - 10)
equate both to 0
20k - 10 = 0 and 20k - 10 = 0
add 10 on both sides
20k = 10 and 20k = 10
divide 20 on both sides
k = 10/20 and k = 10/20 which are both the same
10/20 is simplified to 1/2
k = 1/2
Please helppppppppppppp
Answer: 113 ez
Step-by-step explanation: back in my day i used to calculate sum shots
Imagine this: The government has passed a new law: there will be no music allowed, of any kind, anywhere! Create a presentation addressing the President where you defend the value of music to humankind. Be sure to include:
The three roles of music
Financial benefits of concert attendance to the community
Academic and emotional benefits of music
Two scenarios that demonstrate what you imagine life will be like if the law stands and music is not allowed
Specifics:
Presentation must be at least ten slides long
Presentation must include four photos and one video
Please use at least four sources and list them on the last slide
It is fine to use internet sources, but be sure that they are trustworthy. Good internet sources are ones like: government websites (.gov), national and regional newspapers, academic journals, or books that are available in digital format
Answer: music is how we move on we can clean up why music is playing music is part of our hearts it can help keep calm to our hearts other people hearts to other people listen to other music, people and dogs, cats and other animals listen to music to they dance, most importantly they can help you sing and learn dance moves and other stuff people like dancing and sing to the music and they love other music that can keep them calm, even have music in gyms, stores, malls, and other places music is a part of our lives and no one can stop us from playing except for the government. The government can see if we playing music so watch out but music is a part of our lives so please dont take the music down
branliest please iv been typing this for half an hour
The presentation defends the value of music by highlighting its roles, financial benefits, academic and emotional advantages, and potential consequences of a music ban.
The presentation bullet pointsPresentation: Defending the Value of Music
Introduction:
- Address to the President regarding the importance of reconsidering the ban on music.
Role of Music:
1. Artistic Expression:
- Music as a powerful means of artistic expression, reflecting diverse emotions and cultures.
- Enables individuals to convey feelings and thoughts that words alone cannot express.
2. Universal Language:
- Music transcends language barriers, connecting people from different backgrounds.
- Promotes understanding, unity, and global harmony.
3. Emotional Solace:
- Music's therapeutic effect on mental well-being, reducing stress and anxiety.
- Offers a way to cope with life's challenges and connect with our emotions.
Financial Benefits of Concerts:
- Concert attendance stimulates local economies:
- Boosts revenue for local businesses, such as restaurants, hotels, and shops.
- Increases tourism, leading to job creation and economic growth.
Academic and Emotional Benefits:
- Academic Advantages:
- Studies show music enhances cognitive skills, improving memory, problem-solving, and creativity.
- Supports learning in subjects beyond music.
- Emotional Benefits:
- Music as a source of comfort during difficult times.
- Fosters emotional intelligence, empathy, and self-expression.
Scenarios Without Music:
1. Social Gatherings:
- Without music, celebrations lack vibrancy and energy.
- Diminished cultural and social interactions at gatherings.
2. Education System:
- Music contributes to a well-rounded education, fostering creativity and discipline.
- Absence of music results in a less dynamic and engaging learning environment.
Conclusion:
- Urgent call to reconsider the ban on music:
- Acknowledge music's integral role in human life.
- Preserve its positive impact on society, economy, education, and emotional well-being.
Closing Remarks:
- Thank the President for considering the importance of music to humankind's holistic development.
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2. In a random sample of 87 college students, the average number of GroupMe messages handled in
one day is 49. The 95% confidence interval for the mean number of messages handled by students
daily is given as 47 to 51.
a. What is the population standard deviation of the sample?
b. If the number of samples were doubled, by what factor would the confidence interval change
(keeping the same confidence level?)
We have that the population standard deviation and confidence interval is mathematically given as
SD=1
W = 2.8284
Standard deviation and the new widtha) Generally, normal distribution 95% of the values lies within 2 standard deviations from the mean.
Therefore, we have here:
2*2SD = 51 - 47
2*2SD
SD=1
Hence, the standard deviation is
SD=1
b)
Where,the margin of error is inversely proportional to the square root of sample size.
1 / sqrt{2}
Hence, the new width is
1 / sqrt{2}[tex]1 \ sqrt{2}[/tex]
W = 2.8284
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1 and 5/8 divided by 1/3
Answer:
15
Step-by-step explanation:
15
1 5/8 divided 1/3
first change 1 5/8 into a improper fraction which is 40/8
40/8 divided by 1/3
Keep Change Flip
40/8 divided by 3/1
40/8 x 3/1 = 120/8 simplify by 4 then you get 30/2 simplify again and you get 15/1 which is 15
i hope this is right
Answer:
4 and 7/8 (or as a decimal: 4.875)
Step-by-step explanation:
(Important:) Okay, so before we solve this problem we need to know the "dividing fraction rules." When you are dividing fractions, you need to remember that the second fraction is flipped and the sign goes from being a division symbol to being a multiplication symbol. It may sound confusing, but I'll explain as we go on.
First, let's turn that 1 and 5/8 into an improper fraction so that this is easier to solve. Multiply the denominator by the whole number, then add the numerator. Keep the same denominator (8 in 1 and 5/8), but place your new numerator on top instead.
1 and 5/8 = 13/8.
Now we can go through the steps of the dividing process. Flip the second fraction in the equation. Doing this changes the symbol to a multiplication symbol.
13 x 3
8 x 1
Now multiply across.
13 x 3 = 39
8 x 1 = 8
This question does not ask for an improper fraction, so let's reduce this fraction down to a mixed number and decimal.
Mixed number: 39/8 = 4 and 7/8.
Decimal: 4.875.
I hope that this helps.
if x-3 is a factor of 2x^k - 3 x^(k-1) +4x -39 find the value of k.
The perimeter of a rectangle is 52 cm. If its width is 2 cm more than one-third of its length, find the dimensions of rectangle.
(A) 12 cm x 4 cm (B) 18 cm x 8 cm (C) 15 cm x 9 cm
Answer:
(B) 18 cm x 8 cm
Step-by-step explanation:
let the length be x,
then the width is [tex]\frac{1}{3}[/tex]x + 2
2( [tex]\frac{1}{3}[/tex]x + 2 + x ) = 52
[tex]\frac{1}{3}[/tex]x + 2 + x = 26
[tex]\frac{4}{3} x[/tex] = 24
x = (24*3)/4
x = 18
then the length is 18 cm
and width is (1/3)*18 + 2 = 8
Therefore the dimensions are length:width = 18 cm : 8 cm
Answer:
(B) 18cm x 8cm
Step-by-step explanation:
Perimeter of a rectangle = 52 cm
2(length + width) = 52 ==> l + w = 26
Let x be the length
width = (x/3) + 2
x + (x/3) + 2 = 26
[(3x + x)/3] + 2 = 26
4x / 3 = 24
4x = 24 (3)
x = 6(3) ==> 18 cm
Width = (18/3) + 2
= 6 + 2 = 8 cm
So, the required dimension is 18 cm x 8 cm.
Your boss hands you a memo with a summary of the monthly data. The number of imports is shown as fx), and the number of exports is shown as gx). Use the data in the table below, representing both functions, to explain to your boss the solution to the system of equations and what that solution represents. Use complete sentences.
Answer:
The solution to the system of equations would be if the number of imports and exports are the same. In this case, the solution is January because the number of imports and exports are both 3.
Step-by-step explanation:
I’m smart
Brainliest if correct
Answer:
Multiply 4 x 2 and the add the P in the front like this:
P = 8
HOPE IT HELPS, BE SAFE :3
Answer:
256
Step-by-step explanation:
Since p = 8
4(8)^2
[RevyBreeze]
HELPP! i don’t know this
Answer: A
Step-by-step explanation:
Using the 3D Pythagorean theorem, [tex]AB=\sqrt(6^2 + 4^2 + 1^2)=\sqrt(53)[/tex]
POS systems are most effective when combined with
if f(x) = ax + b where a and b are Costants f(1) = 6and f(-2)=3, find the value of a and b?
Answer:
a = 1
b = 5
⇒ f(x) = x + 5
Step-by-step explanation:
Given
f(x) = ax + bf(1) = 6f(-2) = 3Therefore,
f(1) = 6 ⇒ a + b = 6
f(-2) = 3 ⇒ -2a + b = 3
Rewrite a + b = 6 to make a the subject, substitute into -2a + b = 3 and solve for b:
a = 6 - b
⇒ -2(6 - b) + b = 3
⇒ -12 + 2b + b = 3
⇒ -12 + 3b = 3
⇒ 3b = 15
⇒ b = 5
Substitute found value for b into a + b = 6 and solve for a:
⇒ a + 5 = 6
⇒ a = 1
Therefore, f(x) = x + 5
What is the answer to 5x6+8+9-5 Pls help i dont remember pemdas mean
Answer:
The answer is 42
Step-by-step explanation:
PEMDAS=
parenthesis, exponents, multiplication, division, addition, subtraction.
Answer:
The answer is 42
PEMDAS: parentheses, exponents, multiplication, division, addition, subtraction
Shapes A and B are similar.
a) Calculate the scale factor from shape A to shape B.
b) Find the value of w.
Give each answer as an integer or as a fraction in its simplest form.
The scale factor from shape A to shape B is 0.75 with w = 5.25 cm.
What is scale factor?The size by which the shape is enlarged or reduced is called as its scale factor.
Scale factor from shape A to shape B = [tex]\frac{3}{4}[/tex] = 0.75
It can be calculated by dividing the length of one side of the polygon to the corresponding side of the similar polygon. Keep the length of the side of the original figure in denominator and length of the side of the transformed figure in the numerator.
Calculating w.
[tex]\frac{w}{7} = 0.75\\\\w = 7 * 0.75 = 5.25[/tex]
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pahelp po guys thank u po
Answer:
Hello there, hope it's help !! :)
To divide a multiple of 10:
Find a division fact to start with
Look at the remaining zeros
Subtract the number of remaining zeros in the divisor from the number of remaining zeros in the dividend
-
please help worth 100 pts
Answer:
the first one is x=20. the second one is x=31.33 cm.
Step-by-step explanation:
1. x=20
2. x=31.33 cm
Hope this helps!!! :)
A stack of books is 24 inches high.
Each book in the stack is 3/4 inch thick
How many books are in the stack?
Answer:
32
Step-by-step explanation:
Let's say n such books make up the stack.
If each book is 3/4 inch thick, it contributes 3/4 to the total height of the stack – 24 inches.
==> number of books × 3/4 = 24
(to get this result add the heights of n such book, and equate it to 24. You'll get something like:
3/4 + 3/4 +. . . . n times = 24
And that's what's meant by 3/4 × n = 24)
==> n × 3/4 = 24
multiply both sides by 4
==> n × 3 = 24 × 4
divide both sides by 3
==> n = (24 × 4)/3
==> n = 8 × 4
==> n = 32
We assumed the number of books to be n.
so the answer is:
32 books, each if height 3/4 inch, are required to build a stack 24 inches high.