x^2- 4x- 12 = 0
Solve by factoring and solve by completing the square​

Answers

Answer 1

Use the formula (b/2)^2 in order to create a new term. Solve for by using this term to complete the square.

Cannot solve by completing the square.


Related Questions

Look at the triangular prism below. Each triangular face of the prism has a base of 3 centimeters (cm)and a height of 4 cm. The length of the prism is 12 cm.

What is the volume of this triangular prism?

Answers

Answer:

chupapi muñeño

Step-by-step explanation:

Answer:

144 cm?

Step-by-step explanation:

V

[tex]v = l \times w \times h \\ v =12 \times 4 \times 3 \\ v = 12 \times 12 \\ v = 144[/tex]

Help me with this please!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

[tex]3\sqrt{3}[/tex] = a

Step-by-step explanation:

We can solve this in 2 ways, The easier way would be:

Tan(60) = a/3

=> Tan(60) * 3 = a

=> [tex]3\sqrt{3}[/tex] = a

Hope this helps!

The volume of a cylinder is given 235.5 ft cubed if the radius is given as 5ft find the height.plz help me

Answers

Answer:

3

Step-by-step explanation:

235.5=pi5^2h

solve for h by multiplying pi5^2 to get 78.5 then divide 235.5 by 78.5

2. In 1990, there were 1,200 cell phone subscribers in a small-town of Stephenville. The number of subscribers increased by 75% per year after 1990. How many cell phone subscribers were in Stephenville in 1999?

Answers

Answer: [tex]184,724.153[/tex]

Step-by-step explanation:

Given

In 1990, there were 1200 cell phone subscriber in small town of stephenville

It is increasing by 75% per year after 1990

In year 1991 it is

[tex]\Rightarrow 1200+1200\times 0.75\\\Rightarrow 122(1.75)[/tex]

In year 1992 it is

[tex]\Rightarrow 1200(1.75)+1200(1.75)\times 0.75\\\Rightarrow 1200(1.75)(1+0.75)\\\Rightarrow 1200(1.75)^2[/tex]

So, it is increasing as [tex]1200(1.75)^x[/tex]

where [tex]x=[/tex]no of years spent

After 9 years, it is

[tex]\Rightarrow 1200(1.75)^9=184,724.153[/tex]

A 5 cm×11 cm\greenD{5\,\text{cm} \times 11\,\text{cm}}5cm×11cmstart color #1fab54, 5, start text, c, m, end text, times, 11, start text, c, m, end text, end color #1fab54 rectangle sits inside a circle with radius of 12 cm\blueD{12\,\text{cm}}12cmstart color #11accd, 12, start text, c, m, end text, end color #11accd.

What is the area of the shaded region?

Answers

Answer:

42.5 square.cm

Step-by-step explanation:

Find the diagram attached

Area of the shaded portion = area of square - area of circle

Area of square = L²

Area of square = 11 × 11

Area of square = 121 square centimetres

Area of circle = pir²

r is the radius of the circle = 5cm

Area of the circle = 3.14×5²

Area of the circle = 3.14×25

Area of the circle = 78.5 square. cm

Area of the shaded region = 121 - 78.5

Area of the shaded region = 42.5 square.cm

Answer:

397.39cm

Step-by-step explanation:

did it on khan ur welcome <3

A combined total of $53,000 is invested in two bonds that pay 2% and 8.5% simple interest. The annual interest is $3,335.00. How much is invested in each bond? The amount invested at 2% is $ The amount invested at 8.5% is $

Answers

Answer:

8.5 = $35,000

2% = $18,000

Step-by-step explanation:

two equations can be derived from the question

x + y = $53,000 equation 1

0.02x + 0.085y = $3,335.00. equation 2

x = amount invested in 2% bond

y =  amount invested in 8.5% bond

multiply equation 1 by 0.02

0.02x + 0.02y = 1060 equation 3

subtract equation 2 from 3

0.065y = 2275

y = 35,000

substitute for y in equation 1

53,000 - 35,000 = 18,000

made ​three-point shots in her first game and in her second game. She also made ​two-point shots in each game. How many total points did score in the 2​ games?

Answers

Answer:

the total no of points score in the 2 games is 10 points

Step-by-step explanation:

Given that

She made 3 points in her first game and her second game

Also, she made 2 point shots in each game

we need to find out the no of total points did she score in the 2 games

So,

The number of total points is

= 3 + 3 + 2 + 2

= 10 points

Hence, the total no of points score in the 2 games is 10 points

Which set of coordinates follows these two rules x coordinate start with 4 and add 4 to each term y coordinate start with 4 and multiply each term by 2

A (4, 4), (8, 8), (12, 16)
B (4, 4), (8, 8), (16, 16)
C (4, 4), (6, 16),(8, 64)
D (4, 4), (16,2), (64,0)

Answers

Answer:

A; (4,4), (8,8) and (12,16)

Step-by-step explanation:

The value x starts with 4 and add 4 to each term

The value y start with 4 and each term next is multiplied by 2

So for x, we have;

4 , (4 + 4) and (4 + 4 + 4)

= 4,8 and 12

For y;

we have ;

4, (4 * 2) , (4 * 2 * 2)

= 4, 8, 16

so pairing up, we have;

(4,4), (8,8) and (12,16)

Tell me the answer and help me explain please

Answers

Answer:

The answer is 9/10

Step-by-step explanation:

8/10 is the same thing as ⅘, ⅘ is just simplified

⅖ is less than ⅘ so it would come before c

6/5 is more than 1 so it wouldn’t be on that number line.

Answer:

OK.

My answer is based on 2 things.

1. That the furthest point on the left is 0( That other little distance is ignored)

2. That the point C is equidistant from 4/5 and 1.

If so..

Then

4/5 + x + x =1

4/5 +2x = 1

2x= 1-4/5

x=1/10

Now

From 4/5 to C is x...

Then Position C would be

4/5 + 1/10

c= 9/10

Or by simply making guesses...

All Other options are greater than 1... So It can't be those cos C is less than 1

PLS HELP, look at the image

Answers

X is 6,y is 4

Step-by-step explanation:

Use the eliminations method,please look at the picture, Thanks

Answer: x = 4 y = 6

What is the length of SA?

Answers

Answer: 3 ft

Step-by-step explanation:

what is the domain of the graph ?

Answers

The domain of the graph is all real numbers because the value doesn’t have an end point.

Solve: -7p^5(q^-3)r^2

Answers

Answer:

-

35r^2 p^5 over q^3

Step-by-step explanation:

I think it's right hope It helps

What are the coordinates of the ride located 3.5 units away from the Merry-Go-Round and 1.25 units away from Roller Coaster 1? Drag numbers to complete the coordinates. Numbers may be used once, more than once, or not at all.

Answers

Answer:

-1.5, 0.5

Step-by-step explanation:

Ben traveled 53.30 miles by bike , 18.23 miles by car and 52.62 miles by bus. What is the total distance that he traveled ?

Answers

Answer:

124.15 Miles

Step-by-step explanation:

53.30 + 18.23 + 52.62

677. Which of the following is a simplification of
(x2 + 4x + 4) = (x + 2)? a. x-2 b. x+4 C. x2 + 3x + 2 d. x+2

Answers

Answer:

peals palms penal pro predictive

which representation does not show y as a function of x?.

Answers

Answer:tbh i think the answer H

Step-by-step explanation:

What is the measurement of 40°

Answers

Answer:

80

Step-by-step explanation:

x by 2

Estimate the measure of the angle shown below.



85°
110°
95°
150°

Answers

Answer:

85 angle degree is the answer

Answer:

85 degrees

Step-by-step explanation:

The angle Looked like a acute angle and 85 degrees is the only choice there is of an acute angle

What is the domain of y=log(x+2)

Answers

Answer:

[tex]\huge\boxed{x>-2\to x\in(-2;\ \infty)}[/tex]

Step-by-step explanation:

[tex]y=\log(x+2)\\\\\bold{Domain:}\\\\x+2>0\qquad|\text{subtract 2 from both sides}\\\\x+2-2>0-2\\\\x>-2[/tex]

HELP MEEE PLSSSS I WILL GIVE BRAINILIEST!

The vertices of a quadrilateral are M (-4,2) N (6,2) P (6,-4) O (-4,-4) find the area

Answers

The area of the quadrilateral is 60

PLEASE HELPPPP
Willa rolls a l-6 cube once.
Part A: What is the probability WIlla rolls a number less than 4?
Part B: Willa then rolls the number cube a total of 25 times. The number 2 results 5 times. What type of probability theoretical or experimental, would be used to show the chances of a number 2 resulting on the next roll? Explain how you know.

Answers

Answer:

immma send you the link friend me on here

Step-by-step explanation:

Helppp plz. 13+5 times a number X is under 30

Answers

Answer: 1?

Step-by-step explanation:  13+5= 18  

                                              18x 1= 18

Type the correct answer in each box. Use numerals instead of words.
This graph represents a quadratic function. What is the function’s equation written in factored form and in vertex form?

Answers

Answer:

f(x) = 2x(x - 8)

f(x) = 2(x - 2)² - 8

Step-by-step explanation:

Let the equation of the quadratic function is,

f(x) = a(x - h)² + k

Here, (h, k) is the vertex of the function.

From the graph attached,

Vertex of the parabola → (2, -8)

Therefore, equation of the function will be,

f(x) = a(x - 2)² - 8

Since, the graph passes through origin (0, 0),

f(0) = a(0 - 2)² - 8

0 = 4a - 8

a = 2

Equation of the given parabola will be,

f(x) = 2(x - 2)² - 8

      = 2(x² - 4x + 4) - 8

      = 2x² - 8x + 8 - 8

      = 2x² - 8x

      = 2x(x - 8)

Therefore, factored form of the function will be,

f(x) = 2x(x - 8)

Find the scale factor of the similar shapes below.

Answers

Answer:

Its 3 cube INT and 14 cube INT

Your welcome

Step-by-step explanation:

What is the approximate area of the circle shown below? A. 2460 cm2 B. 44 cm2 C. 88 cm2 D. 616 cm2​

Answers

Answer:

3.14(14)^2 = 615.44

colesest answer D

Piper is planning for a birthday party. She gets to pick a meal activity and cake. For dinner the choices are spaghetti or pizza. For activity the choices are a movie, arcade, or skating. For cake the choices are white or chocolate

Answers

Answer:

arcade, pizza, chocalte cake

Step-by-step explanation:

The correct tree diagram is shown in option B.

What is a tree diagram?

A tree diagram can be defined as a tool to determine the total number of possible outcomes. It is very useful in the fields of probability and statistics.

The choices for meal are spaghetti or pizza.

The choices for activity is  movie, arcade, or skating.

And, the choices for cake are Chocolate and white.

Then, the different choices can be such that it includes all the possible combinations for given choices.

By examining the different options, it can be concluded that the option (B) displays all the possible choices.

Hence, the correct tree diagram for the given case is shown is option B.

To know more about tree diagram click on,

https://brainly.com/question/13311154

#SPJ5

thanks for the help guys

Answers

Answer:

Um.... Your welcome(confuse face), but also I see you got a bad grade. I wish I could've help you at least you would've gotten one answer right.

Step-by-step explanation:

Write C if the figures are congruent, S if they are similar and N if they are neither congruent nor similar.

Answers

answer:

1. C

2. N

3. S

4. S

5. C

step-by-step explanation:

1 — the figures are the same so congruent2 — the figures are very different so neither3 — the figures look alike but not the same so similar4 — the figures look alike but not the same so similar5 — the figures are the same so congruent

(Brainliest to whoever answers correctly) What is the area of the trapezoid?

Answers

Answer:

Area = 104

Step-by-step explanation:

In the middle, 8x10 = 80

We see that the two outside sides are both width of 3, height of 8.

We can do 8x3 = 24 to find both, so 80+24 = 104

Answer:

A = 104

Step-by-step explanation:

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