ALGEBRA NATION
HELP
Candice is deriving the quadratic formula.Her first few steps are
In her next step, Candice needs to complete the square to create
What expression should she add to both sides of the equation?
ax+ box +c=0
ax2 + bx= -C
x2+ bx/a = -c/a

Answer:

$21

Step-by-step explanation:

Step one:

given

she purchased an item for $15

marks up her merchandise 40%.

let us find 40% of $15

and add the answer to the initial price of the item

Step two:

40/100*15

=0.4*15

=$6

Hence the price should she set for the item is

=15+6

=$21

Answer:

angle c is 40° where angle d is75°

Answer:

The cost of homes per square foot differs in different part of the United states. The cost of homes per square foot is gotten by using the formula:

cost of homes per square foot = Cost of apartment / area of apartment

1) Cost of apartment = $540000, area of apartment = 450 ft²

cost of homes per square foot = Cost of apartment / area of apartment = $540000/ 450 ft² = $1200 / ft²

2) cost of homes per square foot = $110/ ft²,  area of apartment = 2100 ft²

cost of homes per square foot = Cost of apartment / area of apartment

$110 / ft² = Cost of apartment / 2100 ft²

Cost of apartment = $110 / ft² × 2100 ft² = $231000

Step-by-step explanation:

Hope this helps plz mark brainiest  

The other person that answered this never got their brainliest bc there was only one answer so now you can give them a brainliest plz do.

Answer:

B. √5 units

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Algebra II

Step-by-step explanation:

Step 1: Define

Find points from graph.

Point A (-3, 2)

Point C (-1, 3)

Step 2: Find distance d

Answer:

A bachelor's degree with a licensure in your state is enough to be a teacher, but it is also the most basic qualification and will earn you the most basic salary. Teachers looking to increase their salary may benefit from a ...

Answer:

13.75x = 3,255 + 2.90x

Step-by-step explanation:

Given that,

Amount invested on computer hardware = $3,255

Amount invested to buy and package each disk = $2.90

Selling price for each program = $13.75

We need to find the equation that is used to find how many disks you must sell to break even. Let there are n disks that you must sell.

ATQ,

$3,255 is a fixed amount. $2.90 and $13.75 depends on x.

So,

13.75x = 3,255 + 2.90x

We can solve the above equation to find the no. of disks.

13.75x - 2.90x = 3255

10.85x = 3255

x = 300

Hence, you must sell 300 disks to break even.

Answer:

B and D (another answer but not sure about the other one)

Answer: A and B

Step-by-step explanation: I just did it

Answer:

see explanation

Step-by-step explanation:

The explicit formula for a geometric sequence is

[tex]a_{n}[/tex] = a₁ [tex](r)^{n-1}[/tex]

where a₁ is the first term and r the common ratio

Here a₁ = 200 and r = [tex]\frac{a_{2} }{a_{1} }[/tex] = [tex]\frac{100}{200}[/tex] = [tex]\frac{1}{2}[/tex] , then

[tex]a_{n}[/tex] = 200 [tex](\frac{1}{2}) ^{n-1}[/tex] ← explicit formula

The 15 th term is then

a₁₅ = 200 × [tex](\frac{1}{2}) ^{14}[/tex]

     = 200 × [tex]\frac{1}{16384}[/tex]

     = [tex]\frac{200}{16384}[/tex] ← divide numerator/ denominator by 8

     = [tex]\frac{25}{2048}[/tex]

Answer:

coordinate of point b is 12,1 by midpoint formula

Step-by-step explanation:

take mp formula and evaluate by putting value it will give you x again same process then it will give you u

Answer:

The answer is option D. Best of luck

Answer:

the last one

the graph increases , then remains constant

Answer:

the answer is b the solution is 6

Answer:

p=65

Step-by-step explanation:

180-50=130

130/2=65

Answer:

[tex]-273.15^{\circ}\text{C}[/tex]

Step-by-step explanation:

[tex]T_i[/tex] = Initial temperature of sodium gas = [tex]-78.5^{\circ}\text{C}[/tex]

[tex]\Delta T[/tex] = Change in temperature of sodium gas = [tex]-194.65^{\circ}\text{C}[/tex]

[tex]T_f[/tex] = Final temperature of sodium gas

Change in temperature of gas is given by

[tex]\Delta T=T_f-T_i\\\Rightarrow T_f=\Delta T+T_i\\\Rightarrow T_f=-194.65+(-78.5)\\\Rightarrow \Delta T=-273.15^{\circ}\text{C}[/tex]

The new temperature of sodium gas is [tex]-273.15^{\circ}\text{C}[/tex].

Answer:

-7w

Step-by-step explanation:

-2w - 5w are like terms because they both have "w"

-2 - 5 = -7

Answer:

for the first one the answer is .50 . for the second one you put for every .50 there is 3.50 and for number 3 for 7 is 49

Answer:

{x,y} = {5,8}

Step-by-step explanation:

 [1]           7x-3y+5=16

 [2]           4y=3x+17

  [1]    7x - 3y = 11

  [2]    -3x + 4y = 17

// Solve equation [2] for the variable  y  

 [2]    4y = 3x + 17

 [2]    y = 3x/4 + 17/4

// Plug this in for variable  y  in equation [1]

  [1]    7x - 3•(3x/4+17/4) = 11

  [1]    19x/4 = 95/4

  [1]    19x = 95

// Solve equation [1] for the variable  x  

  [1]    19x = 95  

  [1]    x = 5  

// By now we know this much :

   x = 5

   y = 3x/4+17/4

// Use the  x  value to solve for  y  

   y = (3/4)(5)+17/4 = 8

Answer:

75

Step-by-step explanation:

Given:

Sarah ate [tex]\dfrac{1}{5}[/tex] of the pizza.

Her friend John ate 20%.

Her friend Jules ate half of the pizza.

To find:

The remaining part of the pizza.

Solution:

We have,

Sarah ate = [tex]\dfrac{1}{5}[/tex] of the pizza.

John ate = [tex]20\%[/tex]  of the pizza.

              = [tex]\dfrac{20}{100}[/tex]  of the pizza.

              = [tex]\dfrac{1}{5}[/tex] of the pizza.

Jules ate = [tex]\dfrac{1}{2}[/tex] of the pizza.

Total part of a pizza they ate = [tex]\dfrac{1}{5}+\dfrac{1}{5}+\dfrac{1}{2}[/tex]

                                 = [tex]\dfrac{2+2+5}{10}[/tex]

                                 = [tex]\dfrac{9}{10}[/tex] of the pizza.

Now, the remaining pizza is

Remaining pizza = 1 - Total part of a pizza they ate

                            = [tex]1-\dfrac{9}{10}[/tex] of the pizza.

                            = [tex]\dfrac{10-9}{10}[/tex] of the pizza.

                            = [tex]\dfrac{1}{10}[/tex] of the pizza.

Therefore, the remaining pizza is [tex]\dfrac{1}{10}[/tex] of the pizza.                        

Answer:

[tex]DG = 26[/tex]

[tex]GE = 26[/tex]

[tex]DF = 15[/tex]

[tex]CH = 14[/tex]

[tex]CE = 28[/tex]

Step-by-step explanation:

The figure has been attached, to complement the question.

[tex]DE = 52[/tex]

[tex]FC = 15[/tex]

[tex]HE = 14[/tex]

Given that J is the centroid, it means that J divides sides CD, DE and CE into two equal parts respectively and as such the following relationship exist:

[tex]DF = FC[/tex]

[tex]CH = HE[/tex]

[tex]DG = GE[/tex]

Solving (a): DG

If [tex]DG = GE[/tex], then

[tex]DE = DG + GE[/tex]

[tex]DE = DG + DG[/tex]

[tex]DE = 2DG[/tex]

Make DG the subject

[tex]DG = \frac{1}{2}DE[/tex]

Substitute 52 for DE

[tex]DG = \frac{1}{2} * 52[/tex]

[tex]DG = 26[/tex]

Solving (b): GE

If [tex]DG = GE[/tex], then

[tex]GE = DG[/tex]

[tex]GE = 26[/tex]

Solving (c): DF

[tex]DF = FC[/tex]

So:

[tex]DF = 15[/tex]

Solving (d): CH

[tex]CH = HE[/tex]

[tex]CH = 14[/tex]

Solving (e): CE

If [tex]CH = HE[/tex], then

[tex]CE = CH + HE[/tex]

[tex]CE = 14 + 14[/tex]

[tex]CE = 28[/tex]

Answer:

x = - 2, y = - 2

Step-by-step explanation:

Given the 2 equations

y = 2x + 2 → (1)

4x - y = - 6 → (2)

Substitute y = 2x + 2 into (2)

4x - (2x + 2) = - 6 ← distribute and simplify left side

4x - 2x - 2 = - 6

2x - 2 = - 6 ( add 2 to both sides )

2x = - 4 ( divide both sides by 2 )

x = - 2

Substitute x = - 2 into (1) and evaluate for y

y = 2(- 2) + 2 = - 4 + 2 = - 2

solution is x = - 2, y = - 2

Answer:

it is a it the first one. 7/13

Answer:

A.

Step-by-step explanation:

The bottom number is the same so leave then and just add the top.

Makes 7/13

Answer:

x=5

Step-by-step explanation:

4(x+3)=32

4x+12=32

4x+12-12=32-12

4x=20

x=5

Answer:

See Explanation

Step-by-step explanation:

The question is incomplete, and it needs additional information before it can be answered.

However, a possible question could be that we generate an equation that has 3 variables and equals 180.

A possible question is:

The sum of three consecutive numbers is 180. What is the highest number?

And the solution is as follows:

Let the three numbers (in order of smallest to greatest) be x, y and z

So, the sum is:

[tex]x + y + z = 180[/tex]

Since the numbers are consecutive, then the following relationship exist:

[tex]y = x + 1[/tex]

[tex]x = x + 2[/tex]

Substitute x + 1 for y and x + 2 for z in [tex]x + y + z = 180[/tex]

[tex]x + x + 1 + x + 2 = 180[/tex]

Collect Like Terms

[tex]x + x + x = 180 - 3[/tex]

[tex]3x = 177[/tex]

Solve for x

[tex]x = 177/3[/tex]

[tex]x = 59[/tex]

The value of the highest being is:

[tex]z = x + 2[/tex]

[tex]z = 59 + 2[/tex]

[tex]z = 61[/tex]

You can generate as many equation as possible

Answer:

The distance between the top of the well and the bottom of the well was 12 1/2

Step-by-step explanation:

(a.k.a B) i did it and got it right :)

Answer:

That is a good question and it might be your question you are trying to find the answer and maybe  your  question looks hard

Hope this help :)

Step-by-step explanation:

Answer:-1/4

Step-by-step explanation:because that is the answer i got

Answer:

1 , 3

Step-by-step explanation:

Try using rise over run

the total, end price is $10.91

15% of 12 = 1.8 which makes it 10.2

7% of 10.2 = 0.714 which makes 10.91

the end price is $10.91

May I have brainliest please? :)

Answer: 707$ because

Step-by-step explanation: if you do the math you can only get this number the wrong and right way