How would I solve this? I need steps..

How Would I Solve This? I Need Steps..

Answers

Answer 1

Option 2  and option 4 are the respective answers.

what is a discriminant of a quadratic equation?

The discriminant is the part of the quadratic formula underneath the square root symbol: b²-4ac. The discriminant tells us whether there are two solutions, one solution, or no solutions.

Given here -3x²+6x+2 = 0

therefore the discriminant is (6)² - ( -3×4×2) = 60

Thus the parabola formed by the curve would intersect the x-axis twice

Now for the second part of the answer, the equation is given as

3(2x-1) (x-4) = 3( 2x² - 9x + 4)

=6x² - 27x + 12

Applying the direct formula for root we get                                                 x =  27 + √(27² − 4×6×12)/12

Hence, option 2 is the correct answer for part 1, and option 4 is the correct answer for the latter question.

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Related Questions

Which of these words is a synonym for vulnerable?
separated
unemployed
unprotected
freed

Answers

The synonym is Unprotected

Simplify: -3x + 6 - 3x - 24 + 2y
-6x + 2y - 18
2y - 18
6x + 2y - 30
None of these choices are correct.

Answers

Answer:

To simplify the expression -3x + 6 - 3x - 24 + 2y, you can start by combining like terms.

-3x and -3x are both negative, so they can be combined to give -6x.

6 and -24 are both constants, so they can be combined to give -18.

So the simplified expression is: -6x - 18 + 2y

If you want to write the expression in standard form, you can rearrange the terms to give: 2y - 6x - 18

CORRECT ME IF I'M WRONG

The owner expects to sell 800 snow cones next week. He earns a profit of $2.29 on each snow cone sold. Based on last week's results, how much profit can the owner expect to earn from cherry snow cone sales next week? Cherry was sold 120 times last time.

Answers

Based on last week's results, the profit that the owner expect to earn from cherry snow cone sales next week is $1832.

How much profit can the owner expect to earn from cherry snow cone sales next week?

From the information, the owner expects to sell 800 snow cones next week and he earns a profit of $2.29 on each snow cone sold. Based on last week's results.

The profit can the owner expect to earn from cherry snow cone sales next week will be:

= Number of cheery × Profit on each

= 800 × $2.29

= $1832

The profit is $1832.

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02.03 Focus Questions- please help 50+ points
What are linear equations and functions?
What are the different ways of representing a linear function?
How are key features of a linear function identified and interpreted from a graph?
How are key features of a linear function identified and interpreted from a table?
How are key features of a linear function identified and interpreted from an equation?
How are key features of a linear function identified and interpreted from a description?

Answers

Step-by-step explanation:

first of all, a function is an equation.

it associates a function result variable (typically called y) with a calculation based on an input variable (usually caked x), or in more complex mathematics based on a group of input variables.

but not every equation is a function. to be a function every valid x value must have exactly one associated y value.

e.g. x = 5 is an equation. but it does not restrict y in any way. so, any value of y (infinitely many) is valid for x = 5.

therefore, this is not a function.

a linear equation/function is a straight line (hence the name).

it is characterized by an inclination (typically called slope or rate of change) and its absolute position typically incentives by the interception points particularly with the y-axis on a coordinate grid.

there are various ways to describe a line in a formal way.

the slope-intercept form :

y = ax + b

a being the slope, b being the y-intercept (y-value when x = 0).

the point-slope form

y - y1 = a(x - x1)

again, a is the slope, (x1, y1) is an identified point (coordinates) on the line.

the general (often called standard) form

gx + hy = c

g, h, c are not describing anything directly, but after transforming this standard form they build the "a" and "b" terms of the other forms.

the slope is the ratio of (y coordinate change / x coordinate change) when going from one point on the line to another. for a line this is constant for any pair of points you can pick on the line.

in other words it tells us how many units y changes, when x changes by a certain amount of units

basically, a line is the collection of all the points for which the given equation is true (when using the x coordinate in the equation we get the corresponding y as calculation result, or when using x and y of any point on the line in the equation, then the equation is true).

graph :

the slope is found by checking 2 points and calculating the y diff / x diff ratio. e.g. starting with (0, 0) if that point is in the line, we increase x by 1 and check the y value there : (1, y).

so, the slope is for that example (y - 0)/(1 - 0) = y.

the y-intercept is found by checking the y-value for x = 0.

the y-interception point is therefore (0, b).

the x-intercept is the x-value when y = 0.

the x-interception point is therefore (x-intercept, 0).

table :

for the slope we pick again 2 data points of the table and calculate y diff / x diff.

as explained this has to be constant for any picked pair of data points of the table. then you know it is a linear equation.

if we are lucky, the table contains data points with x = 0 and/or y = 0. then we have the corresponding intercept values.

but if not, we need to use the coordinates of 1 point in the e.g. slope-intercept form to create an equation with 1 variable : b. and then we solve it to get b.

equation :

we need to bring the equation into a form that we get

y = ...

then the factor of x is the slope. and the constant term (even if it is not there, as it means it is 0) defines the y-intercept

everything else is as described above

description :

the description needs to give us either data points or an indication about the slope and the y-intercept.

when we have 2 points, we can define a line through them. in other words, any pair of points defines a line.

The equation, A equal to 1,500 plu quantity 1 plu 0. 06 over 2 end quantity all raied to the power of 2 time t, repreent the amount of money earned on a compound interet aving account. What doe the value 1,500 repreent?

Answers

The equation states that the total amount in the savings account will be equal to the initial deposit .The value 1,500 represents the initial amount deposited into the savings account.

The equation A = 1,500 + (1 + 0.06/2)^2t represents the amount of money earned on a compound interest savings account. The value 1,500 represents the initial amount that was deposited into the savings account. The equation states that the total amount in the savings account will be equal to the initial deposit (1,500) plus the amount that is earned by compounding the interest rate on the initial deposit. This is calculated by first adding the initial deposit (1) to the interest rate (0.06/2). This sum is then raised to the power of 2 times the number of years (t) the money has been in the account. This total amount is then added to the initial deposit (1,500) to give the total amount earned on the savings account.

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Answer:

The value 1,500 represents the initial value, which means the account started with a balance of $1,500.

Step-by-step explanation:

I got it right.

Marvin works Monday through Thursday 6am-12pm with a 30 minute
unpaid lunch. On Saturday he works from 12pm - 8:30pm with a 30 minute
unpaid lunch. If Marvin earns $14.75 per hour, answer the following.

How many hours and minutes does Marvin work for the week?

What is Marvins gross pay?

Answers

Answer:

The answer is $492.88. This is Marvin's gross pay for the week, calculated by multiplying his hourly wage of $14.75 by the number of hours he worked, which is 33.5 hours.

Step-by-step explanation:

Marvin works 6 hours a day on Monday through Thursday, for a total of 6 * 4 = <<64=24>>24 hours.

On Saturday he works 8.5 hours, for a total of 24 + 8.5 = <<24+8.5=32.5>>32.5 hours.

Marvin works for 30 minutes unpaid during the week, and 30 minutes unpaid on Saturday for a total of 30 * 2 = <<302=60>>60 minutes.

In hours, 60 minutes is 60 / 60 = <<60/60=1>>1 hour.

Therefore, Marvin works for a total of 32.5 + 1 = <<32.5+1=33.5>>33.5 hours in a week.

Marvin earns $14.75 per hour, so his gross pay is 14.75 * 33.5 = $<<14.75*33.5=492.88>>492.88

A cell phone is originally priced at $120. The store owner gives a discount and the cell phone is now priced at $90. Find the percentage discount for the cost of the cell phone,.

Answers

Answer:

25%

Step-by-step explanation:

To find the percentage discount for the cost of the cell phone, we need to first find the difference between the original price and the discounted price:

$120 - $90 = $30

Then we need to divide this amount by the original price and multiply by 100% to express the result as a percentage:

($30 / $120) * 100% = 25%

Therefore, the percentage discount for the cost of the cell phone is 25%.

25%

Guy above is right.

choose the equation of the graphed function.

Answers

Answer:

g

Step-by-step explanation:

shifts the graph down by 6 units

Geometry: 6.7_law_of_cosines: 15 Points

Answers

Answer:

52.61 degrees to the nearest hundredth.

Step-by-step explanation:

8^2 = 7^2 + 10^2 - 2.10.7cos A

cos A = (8^2 - 7^2 - 10^2) / (-140)

          = -85/-140

          = 0.60714

< A = 52.61 degrees.

-55 − (-37) = A) -32 B) -18 C) 18 D) 92
GIVING BRAINLIST! + 90 POINTS!

Answers

Answer:

-18

Step-by-step explanation:

-55  - - 37  =  -55 + 37 = 37 - 55 = -18

Answer:

B) - 18

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

Solve in steps:

- 55 - ( - 37) = (- 1)*55 - ( -1)*37 =                               Rewrite as factors of - 1(- 1)*(55 - 37) =                                    Factor out - 1( - 1)*18 =                                             Simplify - 18                                                     Answer

(80 brainly points) and brainliest

Write the expression in simplest form.

the quantity negative two thirds x minus 7 end quantity minus the quantity negative 12 plus one sixth x end quantity

(A) three sixths x plus 5
(B) negative three sixths x minus 5
(C) five sixths x minus 5
(D) negative five sixths x plus 5

Answers

Answer:

[tex]\textsf{D)} \quad -\dfrac{5}{6} x+5[/tex]

Step-by-step explanation:

Given expression:

[tex]\left(- \dfrac{2}{3} x - 7\right) - \left(- 12 +\dfrac{1}{6}x \right)[/tex]

Remove the parentheses applying the rules  -(-a) = a  and -(a) = -a

[tex]- \dfrac{2}{3} x - 7+12-\dfrac{1}{6}x[/tex]

Collect like terms:

[tex]- \dfrac{2}{3} x-\dfrac{1}{6}x - 7+12[/tex]

Add the numbers -7 and 12:

[tex]- \dfrac{2}{3} x-\dfrac{1}{6}x+5[/tex]

Rewrite the first fraction so that its denominator is 6:

[tex]- \dfrac{2 \cdot 2}{3\cdot 2} x-\dfrac{1}{6}x+5[/tex]

[tex]- \dfrac{4}{6} x-\dfrac{1}{6}x+5[/tex]

[tex]\textsf{Apply the fraction rule} \quad \dfrac{a}{c}-\dfrac{b}{c}=\dfrac{a-b}{c}:[/tex]

[tex]\dfrac{-4-1}{6} x+5[/tex]

Simplify:

[tex]-\dfrac{5}{6} x+5[/tex]

Help me please…20points!!

Answers

Answer:

The answer is b . the first was appel and the second was blackberry

Mr. Croland aked tudent to factor the expreion 28x−8
28
x

8. The tudent offered the anwer hown in the box. Which tudent() offered anwer() equivalent to the original expreion?

Answers

The students who offered the answer equivalent to original expression are Carlos and Irene.

The original expression can be traced back by solving the solution of each student. Thus, taking each solution.

Carlos

Performing multiplication of the solution

Expression = 2(14x - 4)

Expression = 28x - 8

Danny

Performing multiplication of the solution

Expression = 7(4x - 1)

Expression = 28x - 7

Irene

Performing multiplication of the solution

Expression = 4(7x - 2)

Expression = 28x - 8

Thus, Carlos and Irene gave the correct factors of the original expression.

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The complete question is -

Mrs. Crosland asked students to factor the expression 28 x − 8 . The students offered the answers shown in the box

Carlos: 2(14x - 4)

Danny: 7(4x - 1)

Irene: 4(7x - 2)

Find u•v where theta is the angle between u and v

Answers

Answer:

124.45

Step-by-step explanation:

u•v=8*22*cos(π/4)=124.45

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consider a standard normal random variable z. what is the value of z if the area to the right of z is 0.4404?

Answers

The value of z if the area to the right of z is 0.4404 is; 0.15

How to find the probability of the z-score?

To find the value of z if the area to the right of z is 0.4404 is expressed as; P(Z > z) = 0.4404

Now, this means we have to go and trace the value of this area on the standard normal distribution table to know that z-score that it represents.

Now, by looking at the table of standard normal distribution, we can trace that the z-score area to the right of z is 0.4404 is;

z = 0.15

Thus, we conclude that the z-score above is the required one for the given area.

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the interest charged on a $50,000, 60-day note payable, at the rate of 6%, would be

Answers

If the interest charged on a $50,000, 60-day note payable, at the rate of 6%, would be $500.

In the given question, we have to find the interest charged on a $50,000, 60-day note payable, at the rate of 6%.

The note payable = $50,000

Rate = 6% = 0.06

Period outstanding = 60

The total interest formula is a way to calculate the total simple interest on a sum of money over time at a specific interest rate.

Total Interest charged = Note Payable * rate * period outstanding

Total Interest charged = $50,000 * 0.06 * 60/360

Total Interest charged = $500

Hence, if the interest charged on a $50,000, 60-day note payable, at the rate of 6%, would be $500.

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Consider the values shown. What
place value must the answer be
reported to?
67.4 +43 +30 + 42.10 =
A. tens place B. ones place
C. tenths place
D. hundredths place

Answers

67.4 + 43 + 30 + 42.10 = 182.5
Answer: C. tenths place
This is because the last digit is in the tenths place.

Henry read for 20 minute each day alicia rate for 30 minute each day they both read 7 Day of a week how many more doe Alicia read then Henry in 2 week

Answers

Alicia read 140 minutes more then Henry in 2 week .

What is arithmetic?

Arithmetic is an elementary a part of arithmetic that consists of the study of the properties of the normal operations on numbers—addition, subtraction, multiplication, division, involution, and extraction of roots.

Main body:

Henry read for 20 minute each day.

Alicia rate for 30 minute each day.

as they read 7 day of a week , so

total minutes read by Henry = 2 *7 *20

                                               = 280 minutes

total minutes read by Alicia = 2 *7 *30

                                              =420 minutes

difference between henry , alicia reading = 420 - 280 = 140 minutes.

Hence , Alicia read 140 minutes more then Henry in 2 week .

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points on a perpendicular bisector of a line segment are equidistant from the segment’s endpoints. is the meaning of _____

Answers

Points on a perpendicular bisector of a line segment are equidistant from the segment’s endpoints is the meaning of perpendicular bisector theorem

The perpendicular bisector theorem states that if a point is on the perpendicular bisector of a segment ,then it is equidistant from the segment's endpoints.

The perpendicular bisector of a triangle is the line segment that is drawn from a vertex to the opposite side bisecting the side at a right angle. The perpendicular of a triangle is perpendicular to the sides drawn from the opposite vertices and divides the sides into two equal parts. The point at which all the three perpendicular bisectors of a triangle meets is called the circumcenter of a triangle.

It is the meaning of perpendicular bisector theorem.

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the confidence interval for the mean of y is always narrower than the prediction interval for an individual response y given the same data set, x value, and confidence level. group of answer choices true false

Answers

The statement 'the confidence interval for the mean of y is always narrower than the prediction interval for an individual response y given the same data set, x value, and confidence level.' is True.

In this question, we have been given a statement 'The confidence interval for the mean of y is always narrower than the prediction interval for an individual response y given the same data set, x value, and confidence level. '

We need to state whether the given statement is true or false.

We know that the confidence interval = sample mean ± margin of error

The confidence interval  for the mean of y is narrower when the x value is close to the mean of all of the x values.

Therefore, the confidence interval for the mean of y is always narrower than the prediction interval for an individual response y given the same data set, x value, and confidence level is True.

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part 2 of important test, all solutions need to be the same

helppp

Answers

The solution of the quadratic equation using the quadratic formula is

x = 4 + 2√6 or  4 - 2√6

How to solve a quadratic equation using quadratic formula?

The quadratic formula is a formula used to solve quadratic equations, which are equations of the form ax² + bx + c = 0 where a, b, and c are constants. The quadratic formula is:

x = (-b±√(b²-4ac))/(2a)

Given: x² - 8x - 84 = 0

Here, a = 1, b = -8 and c = -84

x = (-b±√(b²-4ac))/(2a)

x = [-(-8)±√((-8)²-[4×1×(-8)])]/(2a)

x = [8±√(96)]/2

x = (8± 4√6)/2

x = 4 ± 2√6

x = 4 + 2√6 or  4 - 2√6

Thus, the solution is x = 4 + 2√6 or  4 - 2√6

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9,16,23,...
Find the 46th term?

Answers

The 46th term is 324.

Select all the correct answers. which two equations can you use to find the adult and child admission fees for a puppet show? let a represent the fee for adults and c represent the fee for children. adults children admissions collected day 1 45 30 $315 day 2 50 40 $370 45c 30a = 315 45a 50c = 315 45a 30c = 315 50c 40a = 370 50a 40c = 370

Answers

The two equations can you use to find the adult and child admission fees for a puppet show are 45a + 30c = 315 and 50a + 40c = 370

What is an equation?

An equation is a mathematical statement that shows that two mathematical expressions are equal.

Given that, two equations can you use to find the adult and child admission fees for a puppet show

Let a represent the fee for adults

Let c represent the fee for children.

On day 1 number of adults = 45

So, fees of 45 adults = 45a

On day 1 number of children= 30

So, fees of 30 children = 30c

Total collection on day 1 = 315

Therefore, equation is 45a + 30c = 315

On day 2 number of adults = 50

So, fees of 50 adults = 50a

On day 2 number of children = 40

So, fees of 40 children = 40c

Total collection on day 2 = 370

So, equation = 50a + 40c = 370

Hence, The two equations can you use to find the adult and child admission fees for a puppet show are 45a + 30c = 315 and 50a + 40c = 370

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The three perpendicular bisectors of a triangle intersect in one point called the: _______

Answers

It is called the [circumcenter]

The price of a new phone is $960.00 and the rate of tax is 7.6%.what is the amount of sales tax?

Answers

Answer: $72.96

Step-by-step explanation:

7.6% = 0.076

Take 960.00 times 0.076 = $72.96

Can anyone please help me out with this question?

Answers

a) The percentile rank of a score of 71 on this test is given as follows: 33rd percentile.

b) Victor's score, which is the 60th percentile, is given as follows: 84.

What is a percentile?

A measure is said to be in the xth percentile of the data-set if it the bottom separator of the bottom x% of measures of the data-set and the top (100 - x)% of measures, that is, it is greater than x% of the measures of the data-set.

The ordered data-set in this problem is given as follows:

58, 64, 66, 70, 71, 75, 77, 80, 84, 85, 87, 90, 93, 95, 96.

The data-set is composed by 15 scores, and 5 is the 5th score in the data-set, hence the percentile rank of a score of 71 on this test is calculated as follows:

5/15 = 0.33 = 33rd percentile.

The 60th percentile is the score at the position given as follows:

0.6 x 15 = 9th score = 84.

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Which of the following government agencies does not regulate banking or financial markets?
a.
The NCUA
b.
The Federal Reserve
c.
The FCC
d.
The OCC

Answers

The government agency that does not regulate banking or financial market is the The FCC. option C

What is the meaning of FCC?

The term FCC stands federal Communication Commission.  We should know that the duty of the federal communication Commission not to regulate finance in the society or regulate banking activities rather than to regulate Communication

It is the duty of the Commission to report on chain broadcasting, assign television stations to private and government individuals in the state.

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What is the center of dilation? How do you know?

Answers

Answer:

  A

Step-by-step explanation:

You want the center of dilation when ∆ABC is dilated by a factor of 1/2 to get ∆AED.

Center of dilation

In any dilation, the center of dilation is invariant. It doesn't move.

Since point A is common to both triangles, it didn't move. Point A is the center of dilation.

Triangle a b c is cut by line segment f g. line segment f g goes from side a b to side a c. the length of b f is x 6, the length of f a is x 1, the length of c g is x 3, and the length of g a is x minus 1. which value of x would make line segment f g is parallel to line segment b c? 1 3 6 9

Answers

Triangle a b c is cut by line segment f g. line segment f g goes from side a b to side a c. then x= 9

The problem description can be shown in the figure below. Since FG is parallel to BC, both sides AB and AC are split in proportional segments. It can be expressed in several ways. We'll use this one:

x+1/x+6= x-1/x+3

Operating in both sides:

4x+3=5x-6

Simplifying

x=9

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Answer: D). 9

Step-by-step explanation:

A questionnaire was given to students. The first question asked was "How stressed have
you been in the last week on a scale of 0 to 10 with O being not stressed at all and 10
being as stressed as possible?" The responses are shown to the right.

Answers

a. Stress rating describes the greatest number of students is: 8 out of 10

b. There are 156 students that responded with this rating.

How to calculate the stress rating?

A questionnaire is a research tool made up of a list of questions used to collect data from respondents during a survey or statistical analysis. Typically, a research questionnaire will contain both closed-ended and open-ended questions.

From the table, the total students will be the addition and this will be:

= 6 + 2 + 5 - 16 + 20 + 20 + 11 + 21 + 24 + 19 + 12

= 156

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during the school suspension of a student with an emotional or behavioral disorder, the school must perform all the following steps except . All the gummy machines at a candy factory work at the same rate: Six machines working simultaneously can complete big order in 22 hours. How many hours would it take t0 fill the order if the number of working machines decreased by a factor of 2? er: hours why-should-we-all-not-be-jealous-of-25-year-olds-making-250k -at-private-equity-firms-like-blackstone-and-kkr A 5.0 kg object suspended on a spring oscillates such that its position x as a function of time t is given by the equation x (t ) = A cos(t ), where A = 0.80 m and = 2.0 s-1 . What is the magnitude of the maximum net force on the object during the motion? infeasible problems can occur when the demand requirement is higher than the available capacity. Which one of the following variables is a continuous variable?a. The number of people on a bus.b. The number of computers in a computer room in a school.c. The height of Year 12 students in a high school.d. The score out of 90 for a test. a hedge fund offers to provide a minimum level of trades to a broker-dealer in return for receiving below-market office space from the broker-dealer. which statement is true A bag of marbles contained 40 blue marbles and 46 white marbles (and no other marbles). For a game, marbles of each color were chosen from the bag. Of the 40 blue marbles,3/5 were chosen.Use this information to answer the questions below.If not enough information is given to answer a question, click on "Not enough information."(a) How many of the bag's marbles were not chosen?(b) How many marbles were in the bag before the game?(c) How many of the bag's blue marbles were chosen? a temporary drivers license is an acceptable form of client identification for bank product purposes on april 1, 2021, the electronic superstore borrows $21 million of which $3 million is due in 2022. show how the company would report the $21 million debt on its december 31, 2021 balance sheet Sam tested every 50th candy bar from the assembly line to make sure there were enough peanuts in each bar. He found 15% did not have enough peanuts. How many candy bars do not have enough peanuts if the factory produces 20,000 candy bars?. 6(x - 3)2(4x - 3) = 60x = 30x = -90x = 40x = 9 Length: 4-6 complete sentencesLanguage: Spanish-Instructions Lee el tema que se te presenta.Escribe tu respuesta usandooraciones completas.-Usa lo que has aprendido sobre"Los desaparecidos" y escribe 5oraciones utilizando el pretritopara explicar lo que pas. rewrite 1/12 x^3 y + 5/12 xy^2 using a common factor1/6 xy(2x2 + 5y)1/6 x2y(2x + 5y)1/12 xy(x2 + 5y)1/12 x3y(y + 5) a party store has 54 packs of plates in stock. the packs are either sets of 8 or sets of 12. if the store has 496 total plates in stock, how many plates would a customer but if he or she buys all of the packs of 12 that the store has in stock? Of the three websites you read that weren't trying to sell a product (Wikipedia, AmericanPregnancy, and Health Prep), which site did you feel presented the most objective, unbiasedinformation about cord blood banking? Of all the sites you looked at, which did you feel was leastobjective and most biased? Why? Explain how filtration separates materials based on the size of their particles. 1. Given the data: 12, 14, 21, 19, 25, 29, 26,21, 15, and 18. Calculate the standard deviation,the mean, and the interquartile range using thecalculator. when another letter arrives, informing them that he won't continue to blackmail them, torvald feels better and forgives nora for her crimes. mr. reynolds, a 75-year-old man, recently suffered from a wrong-site surgery. an rca2 team is exploring what happened. they consider characteristics of the patient and staff members. according to charles vincent, what other areas should they consider?