Mathematics High School

Explain how to graph the following function and determine its domain and range
y=-x^2+4-7

Answers

Answer 1

Answer:

Domain is: ( − ∞ , ∞ ) , { x | x ∈ R }

range is: ( − ∞ , − 3 ] , { y | y ≤ − 3 }

Graph the parabola using the direction, vertex, focus, and axis of symmetry.

Step-by-step explanation:

Related Questions

HELP Im not good at math 4 y + 2 + x =?

Answers

Answer:

x + 4y + 2

That's all that can really be done to the equation.

Answer: you cant really further simplify it other than y+2x=4

Step-by-step explanation:

Exactamente a las 6:45 am mi reloj se daño y comenzo a caminar en sentido contrario a la velocidad correcta, ahora son las 9:30 am que hora esta marcando mi reloj? ayuda :(

Answers

Answer:

El reloj está marcando:

las 4:00 horas

Step-by-step explanation:

El reloj avanzó a su mismo ritmo pero en sentido contrario a partir de las 6:45

si ahora son las 9:30 el reloj marca:

9:30 = 9horas 30minutos = 9h 30'

6:45 = 6horas 45minutos = 6h 45´

1 hora = 60'

9h 30' = 8h + 60' + 30' = 8h + 90' = 8h 90'

entonces:

8h 90'

- 6h 45'

= 2h 45

entonces el reloj está marcando 2h 45' menos que la hora en que se dañó.

por tanto:

6h 45'

- 2h 45'

= 4h 00'

El reloj ahora está marcando las

4 horas en punto.

the length of a rectangle is 6 more than twice the width. the perimeter is 150 meters. find the length and width.

Answers

Answer:

The length is 52 meters and the width is 23 meters.

Step-by-step explanation:

Let l stand for length, and w stand for width.

l = 2w + 6

The length is 6 more than twice the width.

2l + 2w = 150

Twice the length plus twice the width is the perimeter of a rectangle.

2(2w + 6) + 2w = 150

4w + 12 + 2w = 150

6w + 12 = 150

6w = 138

w = 23

l = 2(23) + 6

l = 46 + 6

l = 52

please help me on this one and hurrry please

Answers

Answer: 10/30

Step-by-step explanation:

There are 30 cards and 10 - 10= 0. So it’ll just be 10/30

which is an example of a categorical random variable? a. the weight of a package of meat b. the length of the display shelf where the meat is displayed c. the color of a piece of meat d. the number of steaks sold by a supermarket

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A six-sided die is rolled, with the potential results being 1, 2, 3, 4, or 6. Gender and illness status are examples of categorical random variable data. A, B, AB, or O correspond to a person's blood type. A voter's potential choice for a political party, e.

What is categorical random variable data?A categorical distribution, also known as a generalized Bernoulli distribution or a multinoulli distribution[1], is a discrete probability distribution used in probability theory and statistics to describe the potential outcomes of a random variable that can fall into one of K different categories, with the probability of each category being true being specified separately. Although numerical labels are frequently used to describe the distribution, there is no inherent ordering to these results (e.g. 1 to K). The most typical distribution over a K-way event is the K-dimensional categorical distribution; any other discrete distribution over a size-K sample space is a special instance.The only restriction on the parameters indicating the probability of each potential event is that they must all fall between 0 and 1.

Hence, the example is . the color of a piece of meat

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Three adjacent angles are at a point. The second angle is 25 degrees more than the first, and the third is 25 degrees more than the second, Find measurements of all 3 angles.

PLEASE NEED ANSWER ASAP

Answers

The measurement of the angles are 95°, 120°, and 145°.

How to calculate the angle?

Let the smallest angle = x

Second angle = x + 25

Third angle = x + 25 + 25 = x + 50

x + x + 25 + x + 50 = 360

3x + 75 = 360

3x = 360 - 75

3x = 285

x = 285/3

x = 95°

Second angle = 95 + 25 = 120°

Third angle = 95 + 50 = 145°

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A TV is priced at $475.25. There is a 7% sales tax rate. What is the sales tax for the TV in dollars and cents?

Answers

Answer:

$33.27

Step-by-step explanation:

The correct answer is 33.79 dollars

A new 125 g alloy of brass at 100°C is dropped into 76 g of water at 25 °C. The final temperature of the water and brass is 35 °C, what is the specific heat of the sample of brass? The specific heat of water = 4.184 J/g. °C

Answers

Answer:

The specific heat of the brass can be calculated using the formula:

Q = mcΔT

where Q is the heat transferred, m is the mass of the brass, c is the specific heat of the brass, and ΔT is the change in temperature.

First, calculate the heat transferred from the brass to the water:

Qbrass = mcΔT = (125 g)(c)(100 °C - 35 °C) = 9375c J

Next, calculate the heat transferred from the water to the brass:

Qwater = mcΔT = (76 g)(4.184 J/g. °C)(35 °C - 25 °C) = 3191.84 J

Since the heat lost by the brass is equal to the heat gained by the water:

Qbrass = Qwater

9375c J = 3191.84 J

c = 0.34 J/g. °C

Therefore, the specific heat of the brass is 0.34 J/g. °C.

Step-by-step explanation:

how do i solve 6y = 3

Answers

Answer:

y=1/2

Step-by-step explanation:

A rock that has been significantly reshaped on multiple surfaces by windborne particles and sometimes has a sharp edge is a(n) ________.

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A rock that has been significantly reshaped on multiple surfaces by windborne particles and sometimes has a sharp edge is a(n) ventifact:

What is a rock?

A rock refers to the solid portion of the earth crust which contains minerals. There are three types of rocks; The sedimentary rock: They are formed from dead plants, dead animals, sand etc.

The metamorphic rock: They are formed from previously existing rocks. The igneous rock: They are formed from the solidification of the molten magma.

Hence, ventifact are rock that has been significantly reshaped on multiple surfaces by windborne particles and sometimes has a sharp edge.

Answers

Answer:

5.63

Step-by-step explanation:

The value of x in the given triangle is 5.62 cm.

What is Trigonometry?

Trigonometry is a branch of mathematics that studies relationships between side lengths and angles of triangles.

The given triangle is a right angle triangle

We have to find the value of x

We know that by cosine function is a ratio of adjacent side and hypotenuse

cos 62 = x/ 12

0.469 = x/12

Apply cross multiplication

x=12×0.469

x=5.63

Hence, the value of x in the given triangle is 5.62 cm.

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How would you suggest that managers avoid the quick-fix mentality that makes management by best-seller so tempting?

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You can suggest that managers should avoid the quick-fix mentality that makes management by best-seller so tempting by implementing the following strategies:

1. Understand the Unique Nature of Your Business: Managers should take the time to understand the unique nature of their business. They should realize that what worked for another company may not work for their own company.

2. Avoid Short-Term Solutions: Managers should avoid short-term solutions that provide quick results. They should focus on long-term solutions that will benefit the organization in the long run.

3. Develop a Comprehensive Strategy: Managers should develop a comprehensive strategy that includes long-term goals and objectives. They should also have a plan in place to achieve those goals.

4. Invest in Employee Development: Managers should invest in employee development by providing training and development opportunities. This will help to build a strong workforce that is capable of handling complex challenges.

5. Encourage Collaboration: Managers should encourage collaboration among team members. This will help to create a culture of teamwork and cooperation.

6. Monitor Progress: Managers should monitor progress and adjust strategies as necessary. This will help to ensure that the organization is on track to achieving its goals.

By following these strategies, managers can avoid the quick-fix mentality that makes management by best-seller so tempting. They can focus on long-term solutions that will benefit the organization in the long run.

Hope this helped you...

which expression is equivalent to -3(4x-2)-2x

Answers

Answer:

Step-by-step explanation:

-3(4x+2)-2x

-12x+6-2x

-14x+6

Answer:

*error* error* This account is here to assist CodeName: ELA/ LANGUAGE ARTS/ ENGLISH. Please say RESET in order for me to go back to ELA/ LANGUAGE ARTS/ ENGLISH.

Step-by-step explanation:

A community organization wishes to know the proportion of subjects who feel financially comfortable in a certain town.

Based on last year's census, 64% of the residents in this town felt financially comfortable. In this year's survey 56 out of 115 randomly chosen subjects felt financially comfortable. Comfortable.

If indeed the residents' economic opinions have NOT changed from last year, what's the probability of getting a survey of size n = 115, where 56 or fewer subjects say they feel financially comfortable?

a. 0. 0006

b. 0. 0003

c. 0. 3245

d. 0. 0927

e. 0. 9997

Answers

The probability of getting a survey of size n = 115, where 56 or fewer subjects say they feel financially comfortable is 0.0003. Therefore, the correct option is B.

To find the probability of getting a survey of size n = 115, where 56 or fewer subjects say they feel financially comfortable if the residents' economic opinions have not changed from last year, we can use the normal distribution as an approximation to the binomial distribution.

1. Calculate the mean (μ) and standard deviation (σ) of the binomial distribution using the proportion from the census (64%) and the sample size (n = 115).

Mean (μ) = n * p = 115 * 0.64 = 73.6

Standard deviation (σ) = √(n * p * (1-p)) = √(115 * 0.64 * 0.36) ≈ 6.45

2. Convert the observed value (56) to a z-score:

z = (x - μ) / σ = (56 - 73.6) / 6.45 ≈ -2.73

3. Find the probability of getting a z-score less than or equal to -2.73 using a z-table or an online calculator.

P(Z ≤ -2.73) ≈ 0.0032

The closest answer choice to this probability is 0.0003, so the correct answer is (b) 0.0003.

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A parallelogram has vertices A(-2,1), B(3,2), C(4,6), D(-1,5). At what point do the diagonals intersect? PLZZ HELPPPP

A. (1,3 1/2)
B. (2,3 1/2)
C. (2, 4 1/2)
D. (1 1/2,4)

Answers

Answer:

I believe the A goes with the B the B goes with D that al I know soryy

Question 4 (Essay Worth 10 points)
(06.05 MC)

Iris is a botanist who works for a garden that many tourists visit. The function f(s) = 2s + 25 represents the number of flowers that bloomed, where s is the number of seeds she planted. The function s(w) = 25w represents the number of seeds she plants per week, where w represents the number of weeks.

Part A: Write a composite function that represents how many flowers Iris can expect to bloom over a certain number of weeks. (4 points)

Part B: What are the units of measurement for the composite function in Part A? (2 points)

Part C: Evaluate the composite function in Part A for 30 weeks. (4 points)

Answers

Answer:

(a) f (w)=50w+25

b number of flowers for a given number of weeks

Step-by-step explanation: hope this helps :)

A function is said to be a composite function when a function is written in another function. The composite function that represents the number of flowers is $f(w) = 50w + 25$ and the number of flowers for 30 weeks is 1525.

Given that:

$f(s) = 2s + 25$

$s(w) = 25w$

The number of flowers to bloom over w weeks is calculated using the following composite function: f(w)

$f(s) = 2s + 25$

Replace s with s(w)

$f(s(w)) = 2(s(w)) + 25$

Substitute $s(w) = 25w$

$f(s(w)) = 2(25w) + 25$

$f(s(w)) = 50w + 25$

Hence:

$f(w) = 50w + 25$

The units of the measurement of f(w) is flowers

The number of flower for 30 weeks means:

$w = 30$

So, we have:

$f(30) = 50 \times 30 + 25$

$f(30) = 1525$

Hence, the number of flowers for 30 weeks is 1525

Answers

All equations that represent lines perpendicular to line m include the following:

B. y = -2/3x +4

E. y + 1 = -4/6(x +5)

What are perpendicular lines?

In Mathematics and Geometry, perpendicular lines are two (2) lines that intersect or meet each other at an angle of 90° (right angles).

From the information provided above, the slope for the equation of line m is given by:

y + 2 = 3/2(x + 4)

y = 3/2(x) + 6 - 2

y = 3/2(x) + 4

slope (m) of line m = 3/2

In Mathematics and Geometry, a condition that must be true for two lines to be perpendicular include the following:

m₁ × m₂ = -1

3/2 × m₂ = -1

3m₂ = -2

Slope, m₂ of perpendicular line = -2/3

Therefore, the required equations are;

y = -2/3x +4

y + 1 = -4/6(x +5)

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Complete Question:

Line m is represented by the equation y + 2 = 3/2(x + 4). Select all equations that represent lines perpendicular to line m.

A. y = -3/2x +4

B. y = -2/3x +4

C. y = 2/3x +4

D. y = 3/2x +4

E.y+1=-4/6(x+5)

F.y+ 1 = 3/2(x + 5)

10 cm
a =
6.5 cm
a
What is the length of the missing leg? If
necessary, round to the nearest tenth.
centimeters

Answers

The missing length is 7.6 cm.

i have to solve for H

Answers

Answer:

h = $\frac{3v}{\pi r^{2} }$

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

Whats 36/2/3 simplify

Answers

Answer:

Step-by-step explanation:

This is calculated in order from left to right. This is same as: (36/2)/3

36/2/3= 18/3=6

Note:

It would be calculated as below if the parenthesis was differently applied:

36/(2/3) = 36* 3/2 = 54

Answer:

Step-by-step explanation:

anthony runs a bicycle courier company that charges $3 for delivery plus $0.50 per mile. Which equation matches this relationship

Answers

Answer:

c = .5m + 3

Step-by-step explanation:

HELLP PLEASE BRAINLIEST AND LOTS OF POINTS
Which of the following equations shows the linear relationship between the x and y variables shown in the table of ordered pairs?

A. y = x - 5
B. y = x + 5
C. y = 5 - x
D. y = 5x

Answers

Answer:

x+5

Step-by-step explanation:

Hope this helps

Hi! I hope you're enjoying your day!

The linear relationship between x and y is

y=x+5

So we take a number x, add 5 to it, and that is equal to y.

Let's try and see if it works.

Let's take 2.

Add 5:

y=5+2

That should be equal to 7.

y=7

Yeah! It worked :)

Let's try another one.

Let's take 3.

y=3+5

y=8

Woo-hoo! It worked again :)

Hence, the answer is

$\boxed{\boxed{\bold{Option~B~-y=x+5}}}$

Hope everything is clear.

If you have any questions, please comment.

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$\rule{250}{2}$

Which number value would complete the table below?
10 points
A)$4
B)$4.25
C)$4.50
D)$5.50

Answers

Answer:

Your answer should be C or D.

Because it looks like it goes up 1.50 each time

Step-by-step explanation:

Answer:

C. $4.50

Step-by-step explanation:

The y section goes up by $1.50

Find the length of each segment. Tell whether the segments are congruent. (1,2,3,4 only)

Answers

Answer: 1 & 2 are congruent

Step-by-step explanation:

They both have the same amount of space to get to the other point .

1. AC is congruent to BD.

2. BD and CE are not congruent.

3. AD and BE are not congruent.

4. BC and CE are not congruent.

What is congruency?

We know two similar planer figures are congruent when we have sides or angles or both that are the same as the corresponding sides or angles or both.

1. The segment AC is (1 - (-8)) = 9 units, and the line segment

BD is (3 -(-6)) = 9 units.

So, AC ≅ BD.

2. Line segment BD is 9 units and line segment CE is (7 - 1) = 6 units.

So, BD and CE are not congruent.

3. Line segment AD is (3 - (-8)) = 12 units and line segment BE is (7 - (-6)) = 13 units. (not congruent)

So, line segment AD and BE are not congruent.

4. Line segment BC is (1 - (-6)) = 7 units and line segment CE is (7 - 1) = 6 units.

So, Line segments BC and CE are not congruent.

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THIS IS WRONG CAN SOMEONE CORRECT THIS PLEASE THANK YOU
A football team wants to buy a football. The football costs $52. There are 13 members of the team. How much will each of the team members contribute to be able to purchase the football if they had $28 already.

Solution: Let the amount each team member contributes be x, then
13x + 28 ≥ 52
13x ≥ 52 - 28
13x ≥ 22
x ≥ 22/13
x ≥ 2

Answers

Answer:

heyyyyyyyyyyyyyyy

Step-by-step explanation:

Answer:

sheeshhhhhhhhhhhhh

;)

Step-by-step explanation:

daddy chill

what is the simplified form of this equation f(x)=
x2 + 4x + 10

Answers

Answer:

6x + 10

Step-by-step explanation:

2+4=6

and 10 doesn't have an x next to it so it doesn't count

1. Here are some examples of data. Answer whether each is discrete or continuous data.
a. The number of customers in a shop.
b. The weight of a baby.
c. Shoe sizes.
d. The length of a leaf.

Answers

Answer:

discrete and continuous data

Answer:

a. Discrete data

b. Continuous data

c. Discrete data

d. Continuous data

Step-by-step explanation:

a. It is always possible to count the number of customers in a line, this is a type of discrete random variable.

b. The weight of a baby in its first year or the temperature in a room throughout the day.

c. Shoe sizes can be decimals (7.5 or 8.5) but there are still a fixed set of possible values with gaps between them (there is no 7.9 shoes size). Therefore shoe size is a discrete random variable.

d. The length is typically considered a continuous variable, since, a sea otter will typically not measure exactly 5 feet, but the length will differ by some fraction of a foot.

The work that Ryan did to find the greatest common factor of 48 and 72 is shown below.

Prime factorization of 48: 2 x 2 x 2 x 2 x 3
Prime factorization of 72: 2 x 2 x 2 x 3 x 3

The greatest common factor is 2 ´ 2 ´ 2 ´ 3 x 3

What is Ryan’s error?

Answers

Answer:

there will only be one 3

Step-by-step explanation:

see cause the first 3 of both numbers are 2 but only the last one of both numbers are 3 .

the us defense department needed to know how soldiers were adapting after returning from war. they selected 10% of all iraqi war veterans for a special survey that would closely resemble the composition of all the soldiers (sex, race, age, type of unit, etc.). this type of samples is called

Answers

This type of sample is called a Stratified sample if the US defense selected 10% of all Iraqi war veterans for a special survey that would closely resemble the composition of all the soldiers.

Stratified sampling concerns dividing the population size into multiple smaller subgroups or strata types of groups based on certain required characteristics and then selecting the information that is to be extracted from the data.

In the given case, the Selection of Iraqi war people from the survey indicates the composition of the sample size which is determined from a proportion of the population. This is another characteristic of stratified sampling.

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A president and vice-president for a student organization are chosen from eleven people. How many different president/vice-president combinations are possible?

Answers

Answer:

110 combinations.

Step-by-step explanation:

We are going to be choosing without replacement.

Out of 11 people, we can choose one president, but after choosing, we would be left out with 10 people to choose a vice president from.

To calculate the possible combinations of president and vice-president, we multiply 11 by 10

11 x 10

= 110

Therefore we have 110 vice-president/president possible combinations.

Other Questions

help ASAP please ill mark brainliest ano ang kambal katinig in severe cases what can happen if you get botulism Which conclusion regarding early african trade is supported by the information provided by this map? A climatograph of the Western Sahara is depicted here which shows the average rainfall, low and high temperatures over the course of a year. Which features of the Earth most directly contribute to the climate observed in the Western Sahara? Select ALL that apply. A The convection currents in the atmosphere deposit warm, dry air at the latitudes that contain the Western Sahara.The convection currents in the atmosphere deposit warm, dry air at the latitudes that contain the Western Sahara.B The tilt of the Earth on its axis gives the Western Sahara direct sunlight during the summer.The tilt of the Earth on its axis gives the Western Sahara direct sunlight during the summer.C The gravitational pull of the Moon on the Earth diverts water from desert areas to the oceans.The gravitational pull of the Moon on the Earth diverts water from desert areas to the oceans.D The revolution of the Earth around the Sun prevents rainfall in the areas on the western parts of large continents.The revolution of the Earth around the Sun prevents rainfall in the areas on the western parts of large continents.E The rotation of the Earth generates winds that are deflected as the Earth moves. a patient has begun taking furosemide to manage heart failure. what food should the nurse recommend that the patient consume frequently while taking this drug? how does physical activity benefit your health? Whats is 1.54 x 10^7 any one know You are cleaning out your garage and accidentally splash unknown chemical into your eyes. What is the most important first step How is a stem helpful to a Plant?a.It brings water and minerals to the leavesb.It gives the plant oxygenc.It makes the plant greend.It protects the plant from breaking can someone help!!!!!!!!!!!!!!!!!!!!!!!!!!! someone help me find what is m Corporate procurement, also called corporate purchasing, deals with the transactional elements of buying products and services by an organization for its operational and functional needs.a) trueb) false Solve |5x - 1| < 1please help Alleles practice: Am i right? though it says this is possible How does the author establish a dark, ominous tone suggestive of death? Support your answer with examples. Can someone please help me with this?Step One: Review several stocks by looking at stock tables and reading news articles. When you read about the company, be on the lookout for information such as what products or services they sell, whether they have any new products, whether their standards are aligned with biblical standards, and whether the company has been making a profit. Select one stock in which you'll pretend to invest.For this, I am going to use Amazon: (AMZN)Here is what you need to do. (Three sections)1. What is the name of the company and the stock symbol you chose?What is the P/E ratio?What information did you find about the company?Why did you choose this stock?Company name: Stock symbol: P/E ratio: Information about the company: Why did you choose this stock?2. Over the next week, look up and record the price of stock each day. Record the stock name and its daily price per share in a word processing document or a spreadsheet.3. Did you gain or lose money? How much? in geometry, you can use deductive rules to? Pressure gradients at low altitudes and the Coriolis effect at higher altitudes work together to create patterns of ______ flow that dominate weather systems. Which numbers are divisible by 2?A)826B)270C)271

Explain how to graph the following function and determine its domain and range y=-x^2+4-7 ​

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Explain how to graph the following function and determine its domain and range
y=-x^2+4-7