i need help asapp...

I Need Help Asapp...

Answers

Answer 1

The value of b is -16 and the value of ac is 60 after comparing with the standard equation.

What is a quadratic equation?

Any equation of the form [tex]\rm ax^2+bx+c=0[/tex] where x is variable and a, b, and c are any real numbers where a ≠ 0 is called a quadratic equation.

As we know, the formula for the roots of the quadratic equation is given by:

[tex]\rm x = \dfrac{-b \pm\sqrt{b^2-4ac}}{2a}[/tex]

We have a quadratic function:

= 3x² - 16x + 20

On comparing with standard function:

b = -16

a = 3

c = 20

ac = 3(20) = 60

Thus, the value of b is -16 and the value of ac is 60 after comparing with the standard equation.

Learn more about quadratic equations here:

brainly.com/question/2263981

#SPJ1


Related Questions

Each treasure hunt team will have 5 people. So far 42 people have signed up. How many more people are needed to make every team equal? How many teams will there be?

Answers

Answer:

1) 3 more people

2) 9 teams

Step-by-step explanation:

The divisibility rule for 5 is that it must end in 5 and 0

so the next one is 45, so 3 more people

----------------------- ----------------------- ----------------------- -----------------------

45/5=9 teams

solve:

7(2)^x=224

( help pls )

Answers

Answer:

5

Step-by-step explanation:

Original equation:

[tex]7(2)^x=224[/tex]

Divide both sides by 7

[tex]2^x=32[/tex]

Rewrite in log

[tex]log_232=x[/tex]

You can do mental math to realize this equals 5, or plug this into your calculate (if it allows you to set the base), but if you can't do either, you can use the change of base formula:

[tex]log_ba=\frac{log (a)}{log(b)}[/tex]

You get:

[tex]log_232=\frac{log(32)}{log(2)}[/tex]

When you calculate using a calculator you should get 5

Answer: x = 5

Step-by-step explanation:

[tex]7(2)^x=224[/tex]

start by dividing 7 from both sides

[tex]\frac{7(2)^x}{7} =\frac{224}{7}[/tex]

[tex]2^x=32[/tex]

take the log of both sides

[tex]log(2^x) = log(32)[/tex]

move the x to the left of the log

[tex]xlog(2) = log(32)[/tex]

divide both sides by log(2)

[tex]x=\frac{log(32)}{log(2)}[/tex]

use change-of-base formula

[tex]\frac{log(a)}{log(b)} =logx_{b} (a)[/tex]

[tex]x = log_{2} (32)[/tex]

since [tex]2^5 = 32[/tex], x = 5

Hope this helped :)

admission to a carnival is $4 for children and $6 for adults. what is the ratio of the number of children to the number of adults in this group

Answers

The ratio of the number of children to the number of adults in this group is 2 : 3

How to determine the ratio?

The admission is given as:

Children=4

Adult = 6

Express as ratio

Ratio = Children : Adult

This gives

Children : Adult = 4 : 6

Simplify

Children : Adult = 2 : 3

Hence, the ratio of the number of children to the number of adults in this group is 2 : 3

Read more about ratio at:

https://brainly.com/question/13419413

#SPJ1

If EF = 2x – 12, FG = 3x – 15, and EG = 23, find the values of x, EF, and FG.

Answers

The values of x, EF, and FG from the line segment are 10, 8 and 15 respectively.

What is an equation?

An equation is an expression that shows the relationship between two or more numbers and variables.

EG = EF + FG (segment addition postulate)

Hence:

23 = (2x - 12) + (3x - 15)

x = 10

EF = 2(10) - 12 = 8

FG = 3(10) - 15 = 15

The values of x, EF, and FG from the line segment are 10, 8 and 15 respectively.

Find out more on equation at: https://brainly.com/question/2972832

#SPJ1

Determine the value of K that will cause f(x)=Kx^2+4x-3 to intersect the line g(x)=2x-7 at 2 points

Answers

By using the definition of second order polynomials and the discriminant from quadratic formula, we conclude that the values of k must be less than 1/4.

How to determine the value of k such that a line intersects a quadratic equation

In this question we must determine the set of values of k such that the function g(x), a linear function, intersects a quadratic function f(x) at two points. In this case, we must solve the following second order polynomial:

k · x² + 4 · x - 3 - g(x) = 0

k · x² + 4 · x - 3 - 2 · x + 7 = 0

k · x² + 2 · x + 4 = 0

In this case, the discriminant of the equation described above must be positive:

2² - 4 · k · 4 > 0

4 - 16 · k > 0

4 > 16 · k

16 · k < 4

k < 1/4

By using the definition of second order polynomials and the discriminant from quadratic formula, we conclude that the values of k must be less than 1/4.

To learn more on quadratic equations: https://brainly.com/question/17177510

#SPJ1

OF
Fo
T
The first equation from the previous system of
equations is graphed. Graph the second equation to
find the solution of the system of equations
VH-2x+4
13-1
What is the solution to the system?

Answers

Answer:

(3,-2)

Step-by-step explanation:

See attached image.

Find the slope of the line containing the points (5, -1) and (-8, -4).
A.
B.
13
D.
5/3
OC. 13

Answers

I think it might be D

simplify:

5 whole, 3 out of 10 + 2 whole, 1 out of 5.

Answers

Fractions are written as the ratio of two integers. The sum of 5 3/10 and 2 1/5 is 7 1/2

Sum of fractions

Fractions are written as the ratio of two integers. Given the following expression

5 3/10 + 2 1/5

convert the mixed into improper fraction

53/10 + 11/5

Find the LCM

53+22/10

75/10

7.5

Hence the sum of 5 3/10 and 2 1/5 is 7 1/2

Learn more on sum of fraction here: https://brainly.com/question/78672

#SPJ1

He is offered a discount for the first five months. after this period, his rate increases by $8.50 per month. his total cost at the end of the year is $245.50. paul wrote the following equation represent his plan. 5x + 7(x + 8.50) = 245.50 part a: how much, in total, will paul pay during the five discounted months of his plan? (1 point

Answers

The first five months Paul paid  and in the next seven months he paid 24.

What is a Discount ?

Discounts are defined as lowered prices or the sale of an item for less than it would typically cost. The fundamental formula for calculating a discount is to multiply the original price by the given percentage rate in decimal form. We must deduct the discount from the original price to determine the item's sale price. A discount is an amount that is subtracted from the regular price of an item.

Paul represent his plan in the form of equation:

[tex]5 x+7(x+8.50)=245.50[/tex]

Where x  is an amount for the first [tex]5[/tex] months that is paid by Paul after the discount and [tex](x+8.50)[/tex]  is an amount for the next [tex]7[/tex] month after discount.

[tex]&\Rightarrow \quad 5 x+7 x+59.50=245.50 \\&\Rightarrow \quad 12 x=186 \\&\Rightarrow \quad x=\frac{186}{12} \\&\Rightarrow \quad x=15.50\end{aligned}[/tex]

For the next 7 month:

[tex](x+8.50)=(15.50+8.50)=\$ 24[/tex]

Therefore, The first [tex]5[/tex] months Paul paid $ 15.50, and in the next [tex]7[/tex] months he paid $ 24.

To learn more about discount here:

https://brainly.com/question/15208981

#SPJ4

Which point corresponds to the real zero of the graph of y = log3 (x+2) - 1?
O (-1,-1)
O (1,0)
O (-1,0)
O (0,-.369)
E

Answers

Answer:

(1, 0 )

Step-by-step explanation:

using the rule of logarithms

[tex]log_{b}[/tex] x = n ⇒ x = [tex]b^{n}[/tex] , then

y = [tex]log_{3}[/tex] (x + 2) - 1

to find the zero let y = 0 , that is

[tex]log_{3}[/tex] (x + 2) - 1 = 0 ( add 1 to both sides )

[tex]log_{3}[/tex] (x + 2) = 1 , then

x + 2 = [tex]3^{1}[/tex] = 3 ( subtract 2 from both sides )

x = 1

the zero is (1, 0 )

Which topic is this and how to solve ?​

Answers

Answer:

Step-by-step explanation:

to be honest, I have no idea what topic this is anymore but to solve it plug in 5 for f(x) and then use -3 for x and then simplify for B.

no clue but answer is B

Point O is the centroid of triangle ABC, BY = 3.3, CY= 3, Find BO.

Answers

Applying the centroid theorem, the length of BO is: A. 2.2.

What is the Centroid Theorem?

Based on the centroid theorem, the length of BO equals two third of the length of BY.

That is:

BO = 2/3(BY)

Plug in the values

BO = 2/3(3.3)

BO = 2.2.

Learn more about the centroid theorem on:

https://brainly.com/question/20627009

#SPJ1

g Using the latest observation in a sequence of data to forecast the next period is an associative forecast. a regression analysis. a naive forecast. a moving average forecast. an exponentially smoothed forecast.

Answers

Using the latest observation in a sequence of data to forecast the next period is a naïve forecast. Option C

What is a  naïve forecast?

A naïve forecast is a forecasting technique in which the last sequence of data are used for the next period's forecast without predictions or adjusting the factors that could affect it.

Forecasts that are  produced using a naïve approach are equivalent to the final observed value gotten.

Thus, using the latest observation in a sequence of data to forecast the next period is a naïve forecast

Learn more about naïve forecast here:

https://brainly.com/question/14783345

#SPJ1

dans dog walking job pays $15 per hour. his job as a car-wash attendant pays $400 each week. dan wants to know how many hours he needs to spend walking dogs to earn more than $520 in a week. which three inequalities can model this situation? select all the correct answers. x(15+400)>520 520<400+15x 15x>120 15x+520>400 520<15x+400x 15x+400>520

Answers

Answer: 400 520<15x+400x 15x+400>520

Step-by-step explanation:

The figure below is painted on the street. It consists of a rectangle and an isosceles triangle.

Answers

Answer:

62 cm

Step-by-step explanation:

add all sides, the top is the same as the bottom, (the side of 6 must be counted only once).

[2 * ( 18 + 3 + 7)] + 6 =  

(2 * 28) + 6  =

56 + 6 =

62

62 m is the parameter of the given figure.

What is Perimeter?

The perimeter of a two-dimensional form is the space surrounding it. It represents the total length of the shape's sides. The units used to measure the sides of the form, such as meters, centimeters, inches, or feet, determine the units used to measure the perimeter.

In a statistical context, parameters often refer to the unknown values of a probability distribution. In this case, parameters can be estimated using statistical methods such as maximum likelihood estimation or Bayesian inference.

Add all sides, the top is the same as the bottom, (the side of 6 must be counted only once).

[2 * ( 18 + 3 + 7)] + 6 =  

(2 * 28) + 6  =

56 + 6 =

62

The perimeter of the given arrow is 62 m.

Learn more about perimeter here:

https://brainly.com/question/6465134

#SPJ2

Which is the graph of f(x) = √x?

Answers

The graph is shown in the attached image.

Solve the system of equations 2x-y=132x−y=13 and 6x+5y=-336x+5y=−33 by combining the equations.

Answers

Answer: (2;-9).

Step-by-step explanation:

[tex]\left \{ {{2x-y=13\ |*(-3)} \atop {6x+5y=-33}} \right. \ \ \ \ \left \{ {{-6x+3y=-39} \atop {6x+5y=-33}} \right. .\\Summing\ up\ these\ equations:\\8y=-72\ |:8\\y=-9.\\2x-(-9)=13\\2x+9=13\\2x=4\ |:2\\x=2.[/tex]

Consider the relation given by the graph shown below.
a) Is the relation a function? Why or why not?
b) Determine the domain and range of this graph.

Answers

A is the right answer

Which expression is equivalent to (tangent (startfraction theta over 2 endfraction) ) (negative sine theta)?

Answers

The given expression is equivalent to -1 + cos θ. Option B

What is trigonometry?

Trigonometry can be seen as the branch of mathematics that deals with the relations of the sides and angles of triangles and with the functions of any angles.

The problem deduced from the information is;

[tex]-tan\frac{\alpha }{2} ( -5 sin\alpha)[/tex]

It is simplified thus

[tex]\frac{\frac{sin\alpha }{2} }{\frac{cos \alpha }{2} }[/tex] × [tex](- 2 sin\frac{\alpha }{2} * cos \frac{\alpha }{2} )[/tex]

We then have

[tex]-1 + cos \alpha[/tex]

Therefore, the given expression is equivalent to -1 + cos θ. Option B

The complete question is;

Which expression is equivalent to (tangent (StartFraction theta Over 2 EndFraction) ) (negative sine theta)?

– 1 – cos(ϴ)

– 1 + cos(ϴ)

1 + cos(ϴ)

1 – cos(ϴ)

Learn more about trigonometric identities here:

https://brainly.com/question/7331447

#SPJ1

Find the best fit line for the scatter plot.

Answers

The last photo because the dots are closest to the line.

5. Tom travels 60 miles per hour going to a neighboring city and 50 miles per hour coming back using the same road. He drove a total of 5 hours away and back. What is the distance from Tom's house to the city he visited?

Answers

D=~136.4miles _______

Consider the quadratic function f(x) = x² - 8x -4. What is the value of the leading coefficient?
-8
01

Answers

Answer:

1

Step-by-step explanation:

f(x) = x² - 8x - 4 ← is in standard form

with leading term x² and so

leading coefficient is the coefficient of the x² term, that is 1

To prove that ΔAED ˜ ΔACB by SAS, Jose shows that StartFraction A E Over A C EndFraction = StartFraction A D Over A B EndFraction.

Triangle A E D is shown. Line segment B C is drawn from side A D to A E to form triangle A C B.

Jose also has to state that

Answers

The other equality which must be stated by Jose is that angles BAC and BAE are congruent and their measures are equal.

What other congruence statements must Jose state?

It follows from the task content that Jose is trying to prove the congruence of both triangles by means of the Side-Angle-Side congruence theorem.

It therefore follows that since, Jose has identified that the ratio of corresponding sides are equal as indicated in the task content, the equality which Jose has to state is the angle congruence equality.

Read more on congruence theorem;

brainly.com/question/3168048

#SPJ1

Answer:a. angle A= angle A

Step-by-step explanation: i took edg

I have a 79.43 and if I add 10% would it raise it to 80% grade wise

Answers

Answer:

87 grade

Step-by-step explanation:

if yo add a 10% overall grade to you 79.43 you will get an 87.373

79.43 x 10% = 7.943 (points added bc of your 10%added)

79.43 + 7.943 = 87.373

round it and you'll have 87 overall grade

1/2 of the women in the Spring Garden Club are over 60 years old. 1/4 of the remainder are under 40. What part of the membership is between 40 and 60 years old?

(Please explain with steps!! thank you)

A) 1/4
B) 3/8
C) 3/4
D) 5/8

Answers

A)1/4

Step-by-step explanation:

1/2=2/4

2/4+1/4=3/4

4/4-3/4=1/4

What is the ratio of the two values and what new value do they produce?

$280 in 7m

(Write Explaination)

Answers

The required ratio is give by $40/m, 4 miles/min, 30 mile/liter. .

Let, just assume a vehicle is given an economy of $280 of 7m.


What is the Ratio?

The ratio can be defined as the comparison of the fraction of one quantity towards others. E.g.- water in milk.

Now,
The ratio can be given as for economy = 280/7
=  $40/m

here for new values,
suppose the vehicle travel for 40miles in 10 mins
ratio
= 40/10= 4 miles/min
and vehicle consumes 2 liter fuel on 60 miles of distance ratio can be given as
ratio = 60/2 = 30 mile/liter.

Thus the required ratios can be given as $40/m, 4 miles/min, 30 mile/liter.

Learn more about Ratio here:
brainly.com/question/13419413

#SPJ1

In the following exercises, multiply the binomials. Use any method.
252. (3r − 8)(11r + 1)

Answers

Answer:

Hence the expression [tex]$$(3r-8)(11r+1)=33r^2-85r-8$$[/tex].

Step-by-step explanation:

Explanation

The given expression is (3 r-8)(11 r+1).We have to multiply the given expression.Multiply the (3 r-8) by 1 , multiply the (3 r-8) by 11r then add like terms.

[tex]$$\frac{\begin{matrix}{} & {} & 3r & - & 8 \\ \times & {} & 11r & + & 1 \\ \end{matrix}}[/tex]

___________

[tex]{\frac{\begin{matrix}{} & {} & 3r & - & 8 \\ 33{{r}^2} & - & 88r & {} & {} \\ \end{matrix}}{\begin{matrix}33{{r}^2} & - & 85r & - & 8 \\ \end{matrix}}}$$[/tex]

Marlon jogs two miles to the park in 25 minutes, turns around, and takes another 55 minutes to walk the same path back to his house. What is his average speed for the round-trip?

Answers

Answer:

3 mph

Step-by-step explanation:

So the average speed is simply: [tex]\frac{distance}{time}[/tex]. In case, the total time is 25 minutes + 55 minutes which is a total of 80 minutes, or 1.33 hours. The total distance traveled is two miles + two miles, since he jogged two miles to the park, and then he turns around and walks the same path. So in total he traveled 4 miles. Plugging this in to the formula gives you the equation: [tex]\overline{v}=\frac{4 \text{ miles}}{\frac{4}{3}\text {hours}}=\frac{4\text{ miles}}{1}*\frac{3}{4}\text{ hours} = 3mph[/tex]

which of the following of these numbers represents the three sides of a right triangle?

Answers

3,4,5 are the numbers that represent the three sides of a right triangle

Answer:

3,4 and 5 is the ratio between the sides of a right triangle, therefore also the multiples (6-8-10 .... 9-12-15 etc.)

Step-by-step explanation:

3,4 and 5 is the ratio between the sides of a right triangle, therefore also the multiples (6-8-10 .... 9-12-15 etc.)

i don't know this problem someone help please​

Answers

Answer:

Points shouldn't be connected by straight lines but rather a curve

Step-by-step explanation:

None of the points seem to be incorrect, and the x and y-axis are labeled correctly as well as the points, the only issue I would say there is, is that this is a quadratic equation, so Brogan shouldn't be drawing straight lines between points, but rather a curve.

Other Questions
Which narrative point of view is shown in the passage?The voice said: We've been watching you. You're very good at what you do. You said: Thank you. It said: We want you to do that. We want you to do what you do for them, for us. So OK. We have petitioned - we have remonstrated - we havesupplicated - we have prostrated ourselves before thethrone, and have implored its interposition to arrest thetyrannical hands of the ministry and Parliament.What is the primary emotion he appeals to here?O A. Hope B. Frustration c. Guilt D. Excitement Which of the following statements is FALSE? O The relative frequency of selecting a red card changes with the increase in number of selections. For a given number of selections, we can use Joseph's graph to find the number of diamonds that he has picked so far. O This is an example of the law of large numbers. The theoretical probability for selecting a red card in each pick is 0.5. SAVE & CONTINUE Report an issue with this question Which of the following statements is FALSE ? O The relative frequency of selecting a red card changes with the increase in number of selections . For a given number of selections , we can use Joseph's graph to find the number of diamonds that he has picked so far . O This is an example of the law of large numbers . The theoretical probability for selecting a red card in each pick is 0.5 . SAVE & CONTINUE Report an issue with this question What tone does the statement "families cannot afford privatelessons or the time it takes from the family schedule" give inParagraph 8 Of the The story Music and the Brain? Brandon suffers from bulimia nervosa and has sought the help of a therapist. His psychologist, who ascribes to the cognitive-behavioral model, gives him instructions to eat specific types and amounts of food, but to resist the urge to make himself vomit. The hope is that Brandon will come to see that eating can be a healthy and constructive behavior that requires no undoing. Brandon's psychologist is using a technique called: What is the process that all grade a milk must go through to destroy pathogenic bacteria?. Over a given period of time, if imports are greater than exports, the result is Group of answer choices A trade war. A trade surplus. An embargo. A trade deficit. write a paper Covering the following:Identify and describe labor issues that include employment opportunities, workers' rights and privileges, and growth opportunities in the industry. Identify various community programs and other services that the selected industry offers to the members of the community. Also, discuss how the community affects the industry in terms of the demand for products and services, the target customer base, and the employee base. Discuss financial responsibility within the industry. A rectangle is removed from a right triangle to create the shaded region shown below. Find the area of the shaded region. Explain why rural areas experience problems when large numbers of people move away from them. Which of the following can function as a noun phrase?a: gerund phraseb: participal phrasec: preposition phrasesd: all the above 75 out of 300 oranges in a basket are bad. what percent age of the oranges are (a) bad (b)good Create a Horse table with the following columns, data types, and constraints:ID - integer with range 0 to 65 thousand, auto increment, primary keyRegisteredName - variable-length string with max 15 chars, not NULLBreed - variable-length string with max 20 chars, must be one of the following: Egyptian Arab, Holsteiner, Quarter Horse, Paint, SaddlebredHeight - number with 3 significant digits and 1 decimal place, must be 10.0 and 20.0BirthDate - date, must be Jan 1, 2015Note: Not all constraints can be tested due to current limitations of MySQL. I just need help with this question A ____________________ is a strategy of increasing market share for present products in existing markets. Why were Elizabethan playwrights only indirectly influenced by Greek tragedy? Select all that apply. Select the best answer for each question , she and trotted walked down the hall together Why type or intelligent is shown by the ability to picture the world in 3D What parts of the membrain help chemical reactions happen 60. What type of resistance training equipment has a fixed range of motion?