1. What is the goal of factoring a quadractic?
2. What is the discriminant?
3. What is meant by completing a square?

Answers

Answer 1

Answer:

Completing the square on a quadratic equation in standard form results in the quadratic formula, which expresses the solutions in terms of a, b, and c. Solutions to problems that can be expressed in terms of quadratic equations were known as early as 2000 BC. Because the quadratic equation involves only one unknown, it is called " univariate "

Step-by-step explanation:


Related Questions

Solve 1/8^-1/3
Write in fraction form plz.
:)

Answers

Answer:

[tex] \frac{1} {2^{-1}}[/tex]

Step-by-step explanation:

[tex] \huge \frac{1}{ {8}^{ - \frac{1}{3} } } \\ \\ = \huge \frac{1}{ {( {2}^{3} )}^{ - \frac{1}{3} } } \\ \\ = \huge \frac{1}{ {{2} }^{ - 3 \times \frac{1}{3} } } \\ \\ = \huge \frac{1}{ {{2} }^{ - 1 } } [/tex]

help pls !!!!!!!!!!!! brainliest 2 whoever gets it right !

Answers

Answer:

Step-by-step explanation:

1/18

10^2 . (3/5)2 - 7= ?????????

Answers

10^2 x (3/5)^2 - 7

= 100 x 9/25 - 7

= 900/25 - 7

= 36 - 7

= 29

The set of data { 67,90,83,85,73,80,78,79,68,71} represents the ages of death of the first 10 U.S. Presidents. Which of the following represents a histogram of the data?

Answers

Answer:

90

Step-by-step explanation:

Please someone solve this

Answers

Answer:

a)

(4a - 3b + 4) + (a + 3b - 1) =

4a - 3b + 4 + a + 3b - 1 =

5a + 3

b)

(2x^2 - 3x - 3) + (-x^2 - 6x + 8) =

2x^2 - 3x - 3 - x^2 - 6x + 8  =

x^2 - 9x + 5

c)

(3m^2 + 5m - 6) + (-m^2 - 4n + 5) =

3m^2 + 5m - 6 - m^2 - 4n + 5 =

m^2 + 5m - 4n -1

d)

(4x^3 - 3xy^2) + (x^3 - 5xy^2 - 5y^2) =

4x^3 - 3xy^2 + x^3 - 5xy^2 - 5y^2 =

7x^3 - 8xy^2 - 5y^2

e)

(5m + 2lm) + (l^2 - 3m^2 - 2lm) =

5m + 2lm + l^2 - 3m^2 - 2lm =

5m + l^2 - 3m^2

A barrel of oil was filled at a constant rate of 6.2gal/min. The barrel had 9 gallons before filling began. Enter an equation in standard form.

Answers

Answer:

9 + 6.2x = y

Step-by-step explanation:

x - Gallons per minute

y - Total gallons

So, your answer would be:

9 + 6.2x = y

Could also be written as:

y = 9 + 6.2x

Hope this helps :)

Camila and her children went into a bakery and she bought $35 worth of cupcakes
and brownies. Each cupcake costs $3.75 and each brownie costs $2.50. She bought a
total of 10 cupcakes and brownies altogether. Write a system of equations that could
be used to determine the number of cupcakes and the number of brownies that
Camila bought. Define the variables that you use to write the system.

Answers

Answer:

x + y = 10

3.75x + 2.5y = 35

Step-by-step explanation:

Got it correct

HELPPPP!!!! Use the diagram to complete the statement.

60% 0f 20 is ____

Answers

the answer os 60% of 20 is 12

How far apart are (-7.85) and 2.96?

Answers

Answer:10.81

Step-by-step explanation:It’s 2.96-(-7.85)=2.96+7.85

It’s 10.83 hope it’s correct papa bless

so easy

What is the common difference in the following arithmetic sequence? 2/3,1/6,-1/3,-5/6,...

A -4
B-1/2
C1/9
D4

Answers

Answer:

B.- [tex]\frac{1}{2}[/tex]

Step-by-step explanation:

The common difference is the difference between the numbers in your arithmetic sequence. In this case, we see that the numbers are getting smaller, so we can start by setting up this equation:

[tex]\frac{2}{3} - \frac{1}{6}[/tex]

Because these fractions don't have a common denominator, you make them equal by changing the fractions to have a common denominator. The LCM is 6, so we multiply the first fraction by 2/2:

[tex]\frac{4}{6} - \frac{1}{6} = \frac{3}{6}[/tex]

3/6 can be simplified to be 1/2, and we know we're subtracting, so the answer is b.

Answer:

B

Step-by-step explanation:

HEYYYYYYYYY HELP ME PLEASE WILL GIVE BRAINLIST

Answers

Answer:

b. 13/51

Step-by-step explanation:

hope this helps have a nice day :)

Answer:

d) 4/17

Step-by-step explanation:

14 of each suit, out of 52 total cards.

14/52 would be the chance to draw a diamond.

but, since you removed a card, you change the probability.

13 - 1 = 12

52 - 1 = 51

the probability that you will choose another diamond is 12/51

however, this can be simplified.

12 & 51 are both divisible by 3.

12/3 = 4

51/3 = 17

so the simplified answer would be 4/17

You must make a triangle using 3 pieces of
wood, and the two pieces of woods are 4 ft
and 7 ft long. What is the range of the third
possible side?

Answers

Answer:7 foot i think

Step-by-step explanation: bottom is 4 foot side is 7 foot that means other side is 7 foot

can someone help ill give brainliest

Answers

Answer:

a=55%

b=190%

c=54 pounds

Step-by-step explanation:

ok

a.

33/60=0.55

55%

b.

114/60=1.9

or 190%

c

60/100=0.6

0.6=1 percent

54

Answer:

a=55%

b=190%

c=54 pounds

Step-by-step explanation:

Q1 a) Kamahi invests some money which earns compound interest every year. His investment
amounts to sh60, 500 at the end of the second year and sh 73,205 at the end of the fourth year. Find
the rate of interest of the investment.
(5 marks)​

Answers

Answer: 2=2

Step-by-step explanation:

Without any more information, it sounds like interest is compounded continuously, in which case the value of the investment A is given by

[tex]A=Pe^{rt}[/tex]

where P is the principal investment, r is the interest rate, and t is the number of years.

At the end of the second year (t = 2), the value is A = 60,500, and after the fourth year (t = 4), the value is A = 73,205. So solve the system

[tex]\begin{cases}60,500=Pe^{2r}\\73,205=Pe^{4r}\end{cases}[/tex]

for r. You can eliminate P by dividing

[tex]\dfrac{Pe^{4r}}{Pe^{2r}}=\dfrac{73,205}{60,500}\implies e^{2r}=\dfrac{121}{100}[/tex]

Take the logarithm (log here means natural log) of both sides to get

2r = log(121/100)

r = 1/2 log(121/100)

r ≈ 0.0953

So the interest rate is about 9.53%.

6. match each equation with the correct number of solutions *
no solution
infinitely many solutions
one solution

Equations:
4(3x+2) = 4(2x+3)+4x
10(x+4)-3 = 14x+1

Answers

Answer:

x^4-3x^3-14x^2+12x+40 =0

Step-by-step explanation:

Simplify
A) 3y-y
B)6q+4- q + 5
Thanks to who ever answers:)

Answers

Answer:

=3(y-y)

=3

= 6q-q+9

=q(6-1)+9

=5q+9

Round 827.4715 to four significant

Answers

Answer:

827.5 I guess is the answer

Answer:

6 827.472 8.27471 × 102

5 827.47 8.2747 × 102

4 827.5 8.275 × 102

3 827 8.27 × 102

2 830 8.3 × 102

1 800 8 × 102

827.4715

Sig Figs

7

Decimals

4

Scientific Notation

8.274715 × 102

Words

eight hundred twenty-seven point four seven one five

Given ΔACP≅ΔLNX, find each missing measure.

Answers

Answer:

XL = PC

AC = NX

PC = XL

Angle L = Angle C

Angle C = Angle L

Angle X = Angle P

Step-by-step explanation:

Kendal bought x boxes of cookies to bring to a party. Each box contains 12 2 points
cookies. Someone else brought 24 cookies. Let 'y' represent the total
number of cookies at the party. Show an equation in SLOPE-INTERCEPT
FORM that models this situation. Kendal brings 60 boxes to the party. How
many cookies in total were at the party?

Answers

9514 1404 393

Answer:

y = 12x +24744

Step-by-step explanation:

If there are x boxes, each containing 12 cookies, then the number of cookies in the boxes is 12x. If there are 24 more cookies than that at the party, we have ...

  y = 12x +24 . . . . . equation modeling party cookies

__

For x=60, the number of cookies at the party is ...

  y = 12·60 +24 = 720 +24

  y = 744 . . . cookies at the party

The average score of this quiz is 24 points with a standard deviation of 1.5 points. What is the probability that someone scored 21.9 or less

Answers

Answer:

8.08 %

Step-by-step explanation:

Let us denote : [tex]X=[/tex] score X follows a normal distribution with mean [tex]=24[/tex] and standard deviation [tex]=1.5[/tex]

Step 2

The probability that someone scored 21.9 or less is :

[tex]\mathrm{P}(\mathrm{X} \leq 21.9)[/tex]

[tex]=\mathrm{P}\left(\mathrm{Z} \leq \frac{21.9-24}{1.5}\right)[/tex]

[tex]=\mathrm{P}(\mathrm{Z} \leq-1.4)[/tex]

[tex]=0.0808[/tex]

[tex]=8.08%[/tex]

Answer : [tex]8.08 %[/tex]

9. Chocolate Co. mixes two kinds of chocolate bars
in a gift bag that weighs 3 pounds and has a total
cost of $15. The expensive candy bars are $6 a
pound and the other cost $4.50. How many
pounds of each are used to make the gift bag?


Please show work

Answers

9514 1404 393

Answer:

1 pound of expensive chocolate2 pounds of other chocolate

Step-by-step explanation:

Let e represent the number of pounds of expensive chocolate in the bag. Then (3-e) is the amount of the other chocolate. The total cost of the bag will be ...

  6.00e +4.50(3 -e) = 15.00

  1.50e = 1.50 . . . . . . collect terms, subtract 13.50

  e = 1 . . . . . . . . . . . . .divide by 1.50

1 pound of expensive chocolate is used; 2 pounds of other chocolate is used.

HURRY PLEASE!!!

3x+8=3x+ ____

What value could you write in after 3x that would make the equation true for:

Group of answer choices
no values of x

[ Choose ]
all values of x

[ Choose ]
just one value of x

[ Choose ]

Answers

Answer:

No values of x- Any whole number that is not 8

All values of x: 8

Just one Value of x: There could be many possibilites but all of them have to be some value of x. One answer is:x

Step-by-step explanation:

3x + 8 = 3x + x, which has one solution at x=8.

The given equation is 3x+8=3x+ ____.

What is an equation?

In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.

If 3x + 8 = 3x + 7 has no solutions

If 3x + 8 = 3x + 8 has infinite solutions

If 3x + 8 = 3x + x is equal to 3x + 8 = 4x, which has one solution at x=8

Therefore, 3x + 8 = 3x + x, which has one solution at x=8.

To learn more about an equation visit:

https://brainly.com/question/14686792.

#SPJ2

Identify the x- and y-intercepts.

Answers

I would say the x intercept is (6,0) and the y intercept is (4,0)

Answer:

y = (0,4)

x=(6,0)

(6,4)

Step-by-step explanation:

An initial investment of 480$ is appreciated for 2 years in an account that earns 7% interest, compound quarterly. Find the amount of money in the account at the end of the period.

Answers

Answer:

The answer is $1,175.34

Need help ASAP no rocky

Answers

Answer:

x = 12

Step-by-step explanation:

The sum of a heptagon interior angles is 900 degrees, so:

10x + 5 + 12x - 9 + 9x + 14 + 133 + 10x + 9 + 10x + 136 = 900

rearrange to make it easier to subtract/add, u don't have to do this it's optional

10x + 12x + 9x + 10x + 10x + 5 - 9 + 9 + 14 + 133 + 136 = 900

add liket terms

22x + 29x + 19 + 269 = 900

51x + 288 = 900

subtract 288 from both sides

51x = 612

divide by 51

x = 12

A small bag of flour weighed 30 ounces. A large bag was 10% heavier. How much does the large bag weigh?

Answers

Answer:

33 is the large bag

Step-by-step explanation:

10% of 30 = 3

30 + 3 =33

help me fill in the boxes please​

Answers

Answer:m = 5/4  b=2 and  y=5/4x +2

Step-by-step explanation:

m = 5/4  b=2 and  y=5/4x +2

how do you find the domain and range on a graph

Answers

Look at the values on the axes of the graph.

Step-by-step explanation:

Domain can be found by looking at the x-axis of a graph. Range can be found by looking at the y-axis of a graph. You have to find at what point on the axis is the graph stopping.

For example, if I wanted the domain of y=x, I would say it is all real numbers. Why? Because when we look along the x-axis, from left to right, we can see that it continues going until infinity. That means that there are no stopping points in the graph of y=x.

w/6+5/8=−1 3/8
w=?
I am really in a hurry. If the answer to this question is true, please tell me how to answer it. Thank you.

Answers

Answer:

46

Step-by-step explanation:

Calculate in calculator

h(x)= -x^3-2x^2-3x+4; x=2

Answers

Answer:

h(2) = -18

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Algebra I

Function Notation

Step-by-step explanation:

Step 1: Define

h(x) = -x³ - 2x² - 3x + 4

x = 2

Step 2: Evaluate

Substitute:                    h(2) = -(2)³ - 2(2)² - 3(2) + 4Exponents:                   h(2) = -8 - 2(4) - 3(2) + 4Multiply:                        h(2) = -8 - 8 - 6 + 4Subtract:                       h(2) = -16 - 6 + 4Subtract:                       h(2) = -22 + 4Add:                              h(2) = -18
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