Hi. I need help with these questions.
See image for question.
Please answer no 10 and 11

Hi. I Need Help With These Questions.See Image For Question. Please Answer No 10 And 11

Answers

Answer 1

9514 1404 393

Answer:

  10. (x, y) = (-3/8, 2 9/16)

  11. k = -1

Step-by-step explanation:

10. The value of x at the vertex is ...

  x = -b/(2a)

  x = -(-3)/(2(-4)) = -3/8

The corresponding value of y is ...

  y = 2 +(-3/8)(-3 +(-3/8)(-4)) = 2 +(-3/8)(-3/2) = 2 +(9/16)

The vertex is (x, y) = (-3/8, 2 9/16).

__

11. The discriminant is zero when the roots are equal.

  b² -4ac = 0

  (k-1)² -4(1)(-k) = 0

  k² -2k +1 +4k = 0

  k² +2k +1 = 0 . . . . . collect terms

  (k +1)² = 0 . . . . . . . . write as a square

  k = -1 . . . . . . . . . . . . the value of k that satisfies

Check

  x² -2x +1 = (x -1)² = 0 . . . . has equal roots: x=1.

Hi. I Need Help With These Questions.See Image For Question. Please Answer No 10 And 11

Related Questions

In the first week of​ July, a record 1,060 people went to the local swimming pool. In the second​ week, 100 fewer people went to the pool than in the first week. In the third​ week,140 more people went to the pool than in the second week. In the fourth​ week, 146 fewer people went to the pool than in the third week. What is the percent decrease in the number of people who went to the pool over these four​ weeks?

Answers

Answer:

there was a total of 954 people at the pool

Step-by-step explanation:

Answer: 246

Step-by-step explanation:

4(3xy^4)^3/(2x^3y^5)^4

Answers

Answer:

[tex]\frac{4\left(3xy^4\right)^3}{\left(2x^3y^5\right)^4}=\frac{27}{4x^9y^8}[/tex]

Step-by-step explanation:

Given the expression

[tex]\:\:\frac{4\left(3xy^4\right)^3}{\left(2x^3y^5\right)^4}[/tex]

solving the expression

[tex]\:\:\frac{4\left(3xy^4\right)^3}{\left(2x^3y^5\right)^4}=4\cdot \:\frac{\left(3xy^4\right)^3}{\left(2x^3y^5\right)^4}[/tex]

             [tex]=4\:\frac{27x^3y^{12}}{16x^{12}y^{20}}[/tex]

              [tex]=4\cdot \frac{3^3}{2^4x^9y^8}[/tex]

The multiply fractions are defined as

[tex]\:a\cdot \frac{b}{c}=\frac{a\:\cdot \:b}{c}[/tex]

so the expression becomes

                [tex]=\frac{3^3\cdot \:4}{2^4x^9y^8}[/tex]

                [tex]=\frac{3^3\cdot \:2^2}{2^4x^9y^8}[/tex]

                [tex]=\frac{3^3}{2^2x^9y^8}[/tex]

Refining

                 [tex]=\frac{27}{4x^9y^8}[/tex]

Therefore,

[tex]\frac{4\left(3xy^4\right)^3}{\left(2x^3y^5\right)^4}=\frac{27}{4x^9y^8}[/tex]            

What is the length of side BC of the triangle?



Enter your answer in the box.

units

Answers

the length of bc is 72

Answer:

BC is 28

Step-by-step explanation:

Please help me out with this question please...

Answers

I believe it’s the second option because there are two 3’s with different outputs

Answer: B) No, every x-value does not have exactly one y-value

Explanation:

We have the input x = 3 map to the outputs y = 2 and y = 8 at the same time. A function is only possible if any given x value goes to exactly one y value.

Put another way, if x repeats itself, then we don't have a function. This assumes we don't repeat the same y value when we repeat the x value.

Steven has 10 1/4 pages of homework. If he finishes 2 1/2 pages every ten minutes, how many pages will Steven have left after 10 minutes?

A. He has completed all pages of homework.
B. 12 3/4 pages
C. 7 3/4 pages
D. 2 1/2 pages

Answers

Answer: 7 3/4

Step-by-step explanation:

From the question, we are informed that Steven has 10 1/4 pages of homework and that he finishes 2 1/2 pages every ten minutes.

The number of pages that Steven will have left after 10 minutes will be:

= 10 1/4 - 2 1/2

= 7 3/4

He'll have 7 3/4 pages left

(24-2)180 whats the answer?

Answers

Answer:

3960 is the answer

Step-by-step explanation:

Answer:

3960

Step-by-step explanation:

...........................

...........................

answer is 3960

what is the vertex of the parabola using this equation y=-x^2+4x+5

Answers

Answer:

             (2, 9)

Step-by-step explanation:

[tex]y=-x^2+4x+5\quad \implies\quad a=-1\,,\ b=4\,,\ c=5\\\\h=\dfrac{-b}{2a}=\dfrac{-4}{2(-1)}=2\\\\k=c-\dfrac{b^2}{4a}=5-\dfrac{4^2}{4(-1)}=5-\dfrac{16}{-4}=5+4=9[/tex]

Or by completing the square:

[tex]y=-x^2+4x+5\\\\y=-(x^2-4x)+5\\\\y=-(\underline{x^2-2\cdot x\cdot 2+2^2}-2^2)+5\\\\y=-\left((x-2)^2-4\right)+5\\\\y=-(x-2)^2+4+5\\\\y=-(x-2)^2+9\quad\implies\quad h=2\,,\ k=9[/tex]


If f(y) = 2y - 2/5,
what is f(f^-1(1024))?

Answers

Answer:

-0.399

Step-by-step explanation:

f^-1(1024)=(2*1024-2/5)^-1= 0.000488

f(0.000488)=2*0.000488-2/5= -0.399

Which of the following represents the graph and y-intercept of the function 3x + y = -2?

Answers

It’s going to be something like this

determine the equation of the quadratic function represented by the table of values below: x -4 -3 -2 -1 0 1 y -20 -13 -8 -5 -4 -5​

Answers

Answer: y = -1*x^2 - 4

Step-by-step explanation:

A generic quadratic equation is written as:

y = a*x^2 + b*x + c

we need to find the values of a, b, and c

We have the table:

x     y = f(x)

-4     -20

-3       -13

-2        -8

-1         -5

0         -4

1          -5

In the table we can see two things:

y(0) = a*0^2 + b*0 + c = c = -4

Then we know that:

y(x) = a*x^2 + b*x - 4

Now we only need to find a and b.

We also can see that we have symmetry around the point x = 0, this means that x = 0 is the vertex of the quadratic equation, and for a general case the vertex is at:

x = -b/2a

and this is equal to zero:

-b/2a = 0

then we must have b = 0.

So for now, the equation is:

y = a*x^2 -4

Now we can just replace the values of any of the points to find the value of a, for example we can use the point (1, -5)

this means that:

y = -5 = a*1^2 - 4

    -5 = a - 4

    -5 + 4 = a

        -1 = a

Then the quadratic equation is:

y = -1*x^2 - 4

What is the slope of the line that
passes through these two points?
(-3, 2)
(4, 2)
Remember, Slope
rise (y2-yı)
run (x2-x1)
Simplify your answer completely.

Answers

Answer:

The line has a slope of zero which means the line is a horizontal line.

Step-by-step explanation:

Given that:

The two points are (-3,2) and (4,2)

Slope of a line is given by the formula,

[tex]m = \frac{Rise}{Run} = \frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]

Here,

[tex]x_{1}=-3,\ y_{1}=2\\x_{2}=4,\ y_{2}=2[/tex]

Putting these values in formula;

[tex]m=\frac{2-2}{4-(-3)} \\m = \frac{0}{4+3}\\m = \frac{0}{7} = 0[/tex]

Hence,

The line has a slope of zero which means the line is a horizontal line.

If one angle equals 130 in a triangle and the other equals 96 then what does the angle labelled X equal

Answers

Answer:

x = 46

Step-by-step explanation:

This is basic trigonometry, so we can apply this procedure...

- The total sum of all angles in a triangle is 180 (no angle should be more than 180, this is the limit) and we only need to know just one angle labeled as x, this is represented as:

130 + 96 + x = 180

x = 130 + 96 - 180

- Now we just need to obtain x:

x = 130 + 96 - 180

x = 226 - 180

x = 46

7th grade math need asap. Lilliana is training for a marathon. She runs the same distance every day for a week. On Monday, Wednesday, and Friday, she runs 2 laps on a running trail and then runs 6 more miles. On Tuesday and Sunday, she runs 4 laps on the trail and then runs 2 more miles. On Saturday, she just runs laps. How many laps does Lilliana run on Saturday?

Answers

Answer:

5 Laps

Step-by-step explanation:

The question says that she runs the same distance everyday. This shows us that...

2 laps on a running trail and 6 more miles = 4 laps on a running trail and 2 more miles

We can turn laps into the variable L and miles into the variable M to create an equation

2 L + 6 M = 4 L + 2 M

We can start by subtracting 2 M from both sides to get:

2 L + 4 M = 4 L

Now, we can subtract 2 L from both sides

4 M = 2 L

This tells us that 2 laps are 4 miles which means that 1 lap is 2 miles.

Now, we can break down either side of the equation. Let's break down

2 L + 6 M

First, we can turn the miles into laps. We know that 2 miles is one lap so we can divide 6 by 2. Our Equation:

2 L + 3 L

Now, we can simplify this :

5 L

Now we know that she ran 5 laps on saturday.

Hope this Helps!!! :)

Let me know in the comments if this answer was perfect or if I should change anything!!!

Rob loves to snowboard in the winter, so he is looking at the cost of ski lift tickets for different mountains. Peak Point is selling 5-day packs for $275.60. Grand Mountain is selling 3-day packs for $174.75. Which mountain offers the better deal?

Answers

Answer: Peak Point offers the better deal.

Step-by-step explanation:

To find which has the best price, we need to know the cost for one day at each mountain. To do this, we would divide the cost of each pack by the number of days it pays for, so

$275.60/5 days

and $174.75/3 days.

Peak Point costs $55.12 per day while Grand mountain costs $58.25 for each day. This shows that Peak Point clearly has the better deal, costing $3.13 less for every day included in the pack.

Substitute the given values into the formula, and solve for the unknown variable.
1
A= 2h(B+b); A=44, B = 2, b= 9
h=

Answers

Step-by-step explanation:

44 = 2 * h * 11

44 = 22 * h

divide 22 on both sides, and you get the answer

2 = h

A = 2h(B + b)

Disregard my first reply.

Here is the math work.

44 = 2h(2 + 9)

44 = 4h + 18h

44 = h(4 + 18)

44/(4 + 18) = h

44/22 = h

Divide top and bottom by 11.

4/2 = h

2 = h

Done!

1

what is the domain of g?​

Answers

Answer:

(4,-5) is the answer

hope it helps you!!!!!!!

Step-by-step explanation:

.

Answer:

actual answer

Step-by-step explanation:

What's the gcf of 47 and 17

Answers

Answer:

The GCF of 47 and 17 is 1

Step-by-step explanation:


What is the value of y?

Answers

Answer:

Step-by-step explanation:

(12,5)

45*

For this we’ll only use the top most angles.
We have a straight across line, which is equal to 180*.
That is then cut in half making it a 90* shown by the box.
That makes the others side 90* before it’s cut.
Then it’s cut in half. 90/2=45

45*

Divide. Reduce the answer to lowest terms.

3/4 ÷ 1/3

Answers

Answer:

when dividing fractions folow these steps:

first, you need to switch the denom and num of the second fraction:

3/4 ÷ 1/3---> 3/4 ÷ 3/1

Next you just switch the sign of the negative to a multiplication sign and multiply:

3/4 ÷ 3/1---> 3/4 x 3/1

3/4 x 3/1 -----> 9/4

9/4, 2 1/4 - these are your answers. Either are correct

Step-by-step explanation:

Answer:

2 1/4

Step-by-step explanation:

Please help will mark brainliest

Answers

Answer: The awnser is B

Step-by-step explanation: ive went over the problem and checked

Someone help me with this please

Graph y = 5/3x - 9

Answers

Answer:

The answer is in the attached screenshot

the Y intercept is 9

the slop is 5/3

hope this helps.

Step-by-step explanation:

May I have brainliest please? :)

Answer:jdjej

Step-by-step explanation: so u can give him brainliest

Which is the answer???

Answers

I think it’s B
Hope this helped

This homework is really confusing me. PLEASE HELP SOON. i also haven't been able to understand this topic that well so if someone could explain some stuff that would be good

Answers

I've been having some problems too

:/

Drag the tiles to the correct boxes to complete the pairs. Match each population trend to a contributing factor. government-sponsored family control programs agricultural economies medical advancements Industrial Revolution high birthrate arrowRight low death rate arrowRight increase in food supply arrowRight low birthrate arrowRight Reset Next

Answers

Answer:

Matching the population trend to a contributing factor:

Contributing Factors                                                 Population Trends

government-sponsored family control programs    Low birth rate

agricultural economies                                              increase in food supply

medical advancements                                             low death rate

Industrial Revolution                                                 high birth rate

Step-by-step explanation:

a) Contributing factors are some negative or positive factors that influence or cause a single event or chain of events that result to the incident.

b) Defining population trends:

1) High birth rate: the industrial revolution triggered high birth rate, following increased food supply and medical advancements.

2) Low death rate: medical advancements brought about low death rate as better healthcare is provided to the sick.

3) Increase in food supply: large-scale agricultural economies ensured increasing food production and supply.

4) Low birth rate: when governments started sponsoring family control programs, the resulting effect was low birth rate.

Answer:

The first one is children and adolescents

the second one is adults

the third one is pregnancy

the last one is indivisuals with brittle bones

Step-by-step explanation:

hope this helps :D

Help!!! I need the answer!!

Answers

Answer:

Step-by-step explanation:

3/4a>-16=

a >- 64/3 or -21  1/3

5x+4=x+44 solve for x​

Answers

Answer:

x=10

Step-by-step explanation:

hope this helps

5x = x + 44 - 4

5x = x + 40

5x - x = 40

4x=40

x=40/4

x = 10

Please help with this question ASAP I will give brainliest !!!

Answers

Answer:

(2).

Step-by-step explanation:

We have the expression:

[tex]\displaystye{\ln(\displaystyle{\frac{\sqrt{e}}{y^3})}[/tex]

First, we can use the difference property of logarithms:

[tex]\ln(x/y)=\ln(x)-\ln(y)[/tex]

Hence, this is equivalent to:

[tex]=\ln(\sqrt{e})-\ln(y^3)[/tex]

We can rewrite the left as:

[tex]=\ln(e^\frac{1}{2})-\ln(y^3)[/tex]

Now, we can use the power property:

[tex]\ln(a^b)=b\ln(a)[/tex]

Essentially, we move the exponent to the front.

Hence, this yields:

[tex]=\frac{1}{2}\ln(e)-3\ln(y)[/tex]

The natural log of e is simply 1. Hence:

[tex]=\frac{1}{2}-3\ln(y)[/tex]

Combine fractions:

[tex]\displaystyle{=\frac{1}{2}-\frac{6\ln(y)}{2} \\ =\frac{1-6\ln(y)}{2}}[/tex]

Hence, our answer is (2).

Wilfred is feeding his goats. He gives 56% of the bag of feed to the goats in field A and the rest to the goats in field B. If the bag has 21kg of feed, how much do the goats in field A get?

Answers

Answer:

[tex]Feeds = 11.76kg[/tex]

Step-by-step explanation:

Given

[tex]Field\ A= 56\%[/tex]

[tex]Field\ B= The\ rest[/tex]

[tex]Bag = 21kg\ feed[/tex]

Required

Determine how much goats in field A, get.

To do this, we simply multiply the percentage feed received by goats in field A by the actual bags of feeds

i.e.

[tex]Feeds = 56\% * 21kg[/tex]

Convert percentage to decimal

[tex]Feeds = 0.56 * 21kg[/tex]

[tex]Feeds = 11.76kg[/tex]

Hence, goats in field A get 11.76kg of feeds

Divide. Reduce the answer to lowest terms.

14/3 ÷ 4

Answers

Answer:

Work shown below!

Step-by-step explanation:

[tex]\frac{14}{3}[/tex]   ÷   [tex]\frac{4}{1}[/tex]  = [tex]\frac{14}{3}*\frac{1}{4} = \frac{14}{12}=\frac{7}{6}[/tex]

Answer:

the correct answer is 1 1/6

I WILL GIVE BRAINLIEST! Parallelogram WXYZ has vertices W(-5, 3), X(-2, 0), Y(-4, -2), and Z(-7, 1), as shown in the graph below.
Which statement about parallelogram WXYZ is true?

A. Since two adjacent sides are congruent and have slopes that are negative reciprocals, WXYZ is a square.

B. Since two adjacent sides are not congruent, WXYZ is not a rhombus.

C. Since two adjacent sides have slopes that are negative reciprocals, WXYZ is a rectangle.

D. Since two adjacent sides have slopes that are not negative reciprocals, WXYZ is not a rectangle.

Answers

Answer:

d

Step-by-step explanation:

Other Questions
Use this rule to fill in the table.Rule: Add 7 to the input to get the output. Just For People that had these question and it wasn't answered or asked on Brainly!!!1. In her article "Your Brain on Technology," Margaret Simmons' audience is most likely senior citizens. Read the following excerpt below and consider how this information might influence them to agree with her. In his, 2016 Fortune magazine article titled "The Internet Makes Us Stupid and Here's Why," Kabir Sehgal reminds us that on most web sites, our reading is constantly interrupted by various kinds of distractions. Every embedded link in an online document presents us with a choice - click it or skip it. Sehgal warns that these distractions tend to prevent readers from understanding ideas on a deeper level. When we read a physical book, we understand more because we can slowly take in a few, connected ideas and link them to other known facts. Reading that is not interrupted by ads and related links allow us to internalize information to connect it to what we already know. When we read online, however, we're more likely to encounter a jumble of disconnected thoughts, and our brains don't absorb the information in the same way. The outcome? While our minds may be bombarded with more information than our parents ever dreamed possible, those facts don't become part of our working knowledge.What aspect of Simmons' reasoning and evidence in this excerpt is most likely to convince her senior citizen audience to agree with her claim that smart technology makes you dumber?A. how the new way of reading using online texts helps you remember moreB. how the old way of reading printed books makes you less tech savvy and dumberC. how the new way of reading using online texts limits your comprehensionD. how the old way of reading printed books keeps you from understanding more2. When analyzing an argument, why is it important to understand the speaker or writer's audience?A. Knowing who the intended audience is can help you decide whether you should attend to the argument or not.B. Knowing who the intended audience is can lead you to more readily accept the author's claim.C. Understanding the audience can help you prove whether the evidence presented by the writer is valid.D. Understanding the audience can help you determine the author's purpose and what he or she hopes to accomplish.3. In an argument, what is a claim?A. an appeal to emotions and logicB. one piece of evidence used by the writerC. the writer's main point or thesisD. the writer's conclusion after the argument4. Read this excerpt from Jody Frank's blog post Surfing the Smart Lane: Technology Can Make Us Smarter and think about why she used these specific reasons to support her claim that advances in technology are beneficial. I've given it some thought, and I now realize that there are specific reasons why advances in digital technology have helped me work smarter. Twenty years ago, I coded HTML web pages by hand in a text editor. That skill still comes in handy, but visual HTML editors, databases, and other tools let me build websites much faster and better than I used to. These tools let me focus on design and layout instead of on tiny, nitpicky details. By freeing my mind from the drudgery of writing code, these tools allow me to be more creative. They also protect me from careless typing errors. (When you work in code, a missing quotation mark or bracket can ruin your life, at least for an hour or two.) Fortunately, the digital technologies that sustain the internet connect me with a worldwide network of other web developers who generously share their knowledge. If I have a problem, its extremely likely that another web developer has already solved that problem and posted the solution online. How might Frank's reasons influence her audience to agree with her? [/HTML]A. The audience will want to have the same level of success as the author, so they will agree with her.B. The audience will feel as if they know her personally and will respect her opinion.C. The audience will see how technology has made the author less creative and more disciplined, which will inspire them.D. The audience will see the personal benefits technology has brought to her career. (a) A square has a perimeter of 12 cm. What is the length of each side? (b) A square has an area of 36 m. What is the length of each side? 3/4x16/9???????????? Nicholas Cruger left the fourteen year old Hamilton in charge of his business when he traveled. What does this say about Hamiltons's character. 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Fill in the Data Table for Balls #1 and #2 (2 pts per blank) Ball #1 (Describe the ball) - ____________________________________________________Trial Time to travel 2 meters (seconds)1 2 3 Average Time Using the formula s = d/t, calculate the average speed of Ball #1: _____________________Ball #2 (Describe the ball) - ____________________________________________________Trial Time to travel 2 meters (seconds)1 2 3 Average Time Using the formula s = d/t, calculate the average speed of Ball #2: _____________________16. Based on your data, which ball was the fastest? (1 pt)17. Why do you think it was the fastest? (2 pts)18. Was your hypothesis correct? (1 pt)19. Do you think size of the ball had anything to do with the speed of the ball? (2 pts)20. Why or why not? (2 pts)21. Name 2 factors that could determine the speed at which a ball rolls. (2 pts)22. A car travels 3 kilometers and it takes 2 minutes to cover that distance What is the speed of the car? (2 pts)23. A train is traveling at 60 km/hr. It travels for 2 hours. How far will it travel? (2 pts)24. A girl is riding her bicycle at 10 miles/hour. At the end of the ride she has traveled 35 miles. How long did it take her to cover that distance? (2 pts) If 2.5 pounds of strawberries cost $10, how much do 8 pounds of strawberries cost? Whats different about the object floating and the water?I need help plz. There were 935 offenses in 2000 and 2448 offenses in 2019. What is the percentage increase? can someone please write an interesting summary about the Boston Tea Party, i need to make a "netflix series" on it but i don't know what to write to grab someone's attention. please help Why did the acid diffuse across all sides of the agar cubes equally? Answer the following question in 3-4 complete sentences. Who was the father of journalism? Why has he/she been given this title? re-write the conclusion of the sidewalk bleeding The perimeter of a rectangular field is 318 yards. If the width of the field is 62 yards, what is its length? Which number(s) below belong to the solution set of the equation? Check allthat apply.x + 12 = 13D A. 13B. 312O C. 14O D.OO E. 1F. 25