Factor this polynomial completely
x2 - 8x+ 12
O A. (x-2)(x-6)
B. (x + 2)(x-6)
c. (x - 2)(x+6)
D. (x-3)(x - 4)

Answers

Answer 1

Answer:

(x-2)(x-6)

Step-by-step explanation:

We look for two integers which multiply to +12 but add to -8 and we find those numbers by looking at the factors of 12={1,2,3,4,6,12}

We find that by picking 6 and 2,6×2=12 but 6+2 is not -8 so we tweak that as -6 and-2

By so doing, now -6×-2=12,-6+(-2)=-8

so we factor to get (x-2)(x-6)


Related Questions

1680 at 12% for 6 months

Answers

Answer:

Could you please expand on your question? Once you do I will edit the answer I put (this) to telling the answer. (The upcoming and this sentence is pre-written and copy and pasted in every brainly question or comment I write or answer.) If this answer helped you please consider giving it brainliest.

- •Trix•

( Yes I know my - •Trix• thingy is not my user but its what I would change it to if I could but I can't, please address me as Trix while commenting or talking to me here.)

It takes Zion three times as long to paint a room as it does Sanjay. How long does it take each person by
himself if they can paint the room together in 30 minutes?

Answers

Answer:

It takes Sanjay 40 minutes and Zion 120 minutes

Step-by-step explanation:

If it takes Sanjay x minutes, it takes Sanjay 3 * x = 3x minutes

Painting together, they spent 30 minutes

1/x + 1/3x = 1/30

4/3x = 1/30

4 * 30 = 3x * 1

120 = 3x

x = 120/3

x = 40 minutes

3x = 3 * 40 = 120 minutes


1)
12 km
12 km
20 km
Is it a right triangle?​

Answers

Answer:

No, it is a obtuse triangle instead

Step-by-step explanation:

So, you use pythagorean and theorem which is a^2 + b^2 = c^2

So when you plugin in the numbers, it's 20^2__ 12^2 + 12^2

When you square them you get left with 400__144 + 144

Then, you add 144 + 144 = 288

But since 400 is > than 288, then it's an obtuse triangle.

Answer:

No

Step-by-step explanation:

It does not follow the Pythagorean Theorem, which states that the two shorter sides squared (squared BEFORE added together).  12 squared is 144, and 144 plus 144 equals 288.  20, which seems to be the hypotenuse, squared is 400.  288 does not equal 400.

NEED HELP ASAP!

Betsy buys three lamps and two end tables and pays $520. Her friend Tina buys two lamps
and RETURNS an end table and only pays $20. What do the lamps and end tables cost?

Answers

9514 1404 393

Answer:

lamp: $80end table: $140

Step-by-step explanation:

If we let x and y represent the costs of a lamp and end table, respectively, the two purchases can be written as ...

  3x +2y = 520

  2x -y = 20

__

These equations can be solved many ways. If we use "elimination", we can add twice the second equation to the first to eliminate y:

  (3x +2y) +2(2x -y) = (520) +2(20)

  7x = 560 . . . . simplify

  x = 80 . . . . . . divide by 7

  y = 2x -20 = 2(80) -20 = 140

The cost of a lamp is $80; the cost of an end table is $140.

i need some help with this

Answers

Answer:

a) 6.1 feet

b) 12.6 feet

Step-by-step explanation:

Using trigonometric ratios we know that:

[tex]sin = \frac{opp}{hyp}\\cos = \frac{adj}{hyp}\\tan = \frac {opp}{adj}[/tex]

AKA SohCahToa.

To find the height, we will use sine.

[tex]sin(26^o)= \frac{x}{14}\\14*sin(26^o)=\frac{x}{14}*14\\14sin(26^o)=x\\x=6.14[/tex]

To find the length we will use cosine.

[tex]cos(26^o) = \frac{x}{14}\\14*cos(26^o)=\frac{x}{14}*14\\14cos(26^o)=x\\x=12.6[/tex]

Determine all values of k that make each of the following a perfect square trinomial. X^2+8x+k

Answers

Answer:

k can either be

12

or

12

.

Step-by-step explanation:

Consider the equation

0=x2+4x+4

. We can solve this by factoring as a perfect square trinomial, so

0=(x+2)2→x=−2 and−2

. Hence, there will be two identical solutions.

The discriminant of the quadratic equation (b2−4ac) can be used to determine the number and the type of solutions. Since a quadratic equations roots are in fact its x intercepts, and a perfect square trinomial will have

2 equal, or 1

distinct solution, the vertex lies on the x axis. We can set the discriminant to 0 and solve:

k2−(4×1×36)=0

k2−144=0

(k+12)(k−12)=0

k=±12

Which decimal represents the shaded portion?

Answers

Answer: 1.4

Step-by-step explanation:

1 of 4 are shaded.

( not sure but i think)

.25
Only 1/4th is shaded, .25 is a fourth of the whole

Which line on the graph below has a slope of zero?

○ P
○ Q
○ R
○ S​

Answers

Answer:

Q

Step-by-step explanation:

Answer: Q, it's the only horizontal line

Which number is less than 5.17 and greater than 5.04.

Answers

there can be infinitely many solutions

For example: 5.16 and 5.06

One number is four more than a second number. Two times the first number is 8 more than four times the second number.

Answers

Answer:

The required numbers are:

First number = 4

Second number = 0

Step-by-step explanation:

Let First number = x

second number = y

We are given:

One number is four more than a second number.

Writing in mathematical form:

[tex]x=y+4[/tex]

Two times the first number is 8 more than four times the second

Writing in mathematical form:

[tex]2x=4y+8[/tex]

Now, we will solve these equations by substitution to find values of x and y

Let:

[tex]x=y+4--eq(1)\\2x=4y+8--eq(2)[/tex]

Now, putting value of x from eq(1) into eq(2)

[tex]2x=4y+8\\Put\:x= y+4\\2(y+4)=4y+8\\2y+8=4y+8\\2y-4y=8-8\\-2y=0\\y=0[/tex]

So, we get y=0

Now put value of y in equation 1 to get value of x

[tex]x=y+4\\x=0+4\\x=4[/tex]

So, we get x=4

So, the required numbers are:

First number = 4

Second number = 0

Sam is interested in buying a TV. At Walmart, the TV is regularly prices at $599.99 and is on sale for 20% off the regular price. At Best Buy, the same TV is regularly prices at $899.99 and is on sale for 30%off the regular price.

What is the difference in the sale price of the TV between these two stores?

Show your work.

Answers

Answer:

If 30% of 599.99 is 197.99 and 30% of 899.99 is 269.99 then you subtract 269.99-197.99= $72

Step-by-step explanation:

Hope this helped you!! Give brainliest.

help no points ok yea

Answers

Answer: 1, it’s a continuous cuz it’s a line and not dots

2, I think the notation u use is f(x) = 50+25x

3, D: - infinity, infinity

4, R: - infinity, infinity

Step-by-step explanation:

Google hope it helps

nce a year, a store offers a free frozen yogurt to its customers. Each customer can cl he flavor of frozen yogurt and one topping. There are 8 possible ways to order the fro gurt. How many flavors and toppings could the customers choose from? 4 flavors and 3 toppings 2 flavors and 4 toppings 2 flavors and 2 toppings 4 flavors and 4 toppings​

Answers

the answer would be i think they sre able to get 2 flavors

Select true statements

Answers

Answer:

the first one and last one are true

Step-by-step explanation:

Help please due in 2 hours Thank you!

Answers

Answer:

its B

Step-by-step explanation:

pretty sure it’s the second one (B i think)

On a coordinate plane, how are the locations of the points (1 , -7) and (1 , 7) related?

A.
reflection across the y-axis
B.
reflection across both axes
C.
locations unrelated
D.
reflection across the x-axis
HELP PLS
BRAINLIST

Answers

Answer:

D. Reflection across x-axis

Step-by-step explanation:

When plotting the two points & then connecting the dots, it will not touch y-axis at all - it will be straight line and cross x axis

answer correctly please

Answers

Answer:

25

Step-by-step explanation:

I divided 150 by 60, I am so sorry if it’s wrong

Answer:

160!

Step-by-step explanation:

200 x 8 =? to make it easier

2 x 8 = 16 and add 100 more equals 160!

Write the sentence as an inequality and graph it; a number n is less than or equal to -7 or greater than 12.

Answers

Answer:

n <_-7 > 12

Step-by-step explanation:

According to a recent survey, 81 percent of adults in a certain state have graduated from high school. If 15 adults from the state are selected at random, what is the probability that 5 of them have not graduated from high school?

Answers

Answer:

0.090401

Step-by-step explanation:

Given that:

Probability of graduate = 81% = 0.81

P( not graduate) = p = (1 - 0.81) = 0.19

1 - p = 0.81

Using binomial distribution :

P(x = x) = nCx * p^x * 1-p^(n-x)

n = 15 ; x =5

P(x = 5) = 15C5 * 0.19^5 * 0.81^(15 - 5)

P(x = 5) = 15C5 * 0.19^5 * 0.81^10

P(x = 5) = 3003 * 0.0002476099 * 0.12157665459056928801

P(x = 5) = 0.090401

Answer:

D:   (15/5) (0.19)^5 (0.81)^10

Step-by-step explanation:

Given the equation y=1/3x+4 , what is the value of y if x = 3? State your answer in decimal form.

Answers

y=5. if you do the problem you would plug in 3 for x, so the equation would be y=1/3(3)+4. 1/3 times 3 equals 1, so then it would be 1 plus 4 which equals 5. therefore, y=5.

hope this helps:)

The graph shows the money that Marco earns for different numbers of days worked. How much money does he earn per day?​

Answers

Answer:

You didnt put a graph on here but all you gotta do, is add each day up then divide by how many days he works and you got your answer

Step-by-step explanation:

-1/2x>-2x - (-3/4x +1)

Answers

I neeeeeeeed it skkyvbnj

Help please ASAP 10 points

Answers

Answer:

The answer is D

Step-by-step explanation:

Because parallel means "(of lines, planes, surfaces, or objects) side by side and having the same distance continuously between them." - Google Dictionary

This means that if you draw two lines next to each other and no matter how far they go on, they will never meet.

You can remember this by looking at the two L's in 'parallel' and seeing how they will never meet - because they are parallel to each other

Hope this helped you!!!

:)

at 5 p.m., the temperature began dropping 3 f every hour for 6hrs. what was the temperature after 6hrs?
time temperature
3 p.m. 14
5 p.m. 11​

Answers

Answer:

-7°

Step-by-step explanation:

every hour the temperature dropped 3° so in 6 hours it would be -7° because 3x6 is 18 and 11-18 is -7

Which statement correctly compares the constants of variation for the graph and the equation below?
4
3
10x
Зу
-5-4-3-2
1
2
3
4
5
X
The graph has a greater constant of variation.
The equation has a greater constant of variation.

Answers

Answer:

2

Step-by-step explanation:

Answer:

the equation has a greater constant of  variation

Step-by-step explanation:

got it right on edge

We want to find the zeros of this polynomial:
p(2) = (2x - 1)(x+3)(x + 1)(x - 2)
Plot all the zeros (x-intercepts) of the polynomial in the interactive graph.

Answers

Answer:

How do you find the zeros of a polynomial graphically?

Step-by-step explanation:

If we graph this polynomial as y = p(x), then you can see that these are the values of x where y = 0. In other words, they are the x-intercepts of the graph. The zeros of a polynomial can be found by finding where the graph of the polynomial crosses or touches the x-axis.

Help is...appreciated.

Answers

just divide 3.32 by 16 and then multiply that by 100. that’s get you the percent

Answer:

53%

Step-by-step explanation:

Which of the following is a factor of x2 - 6x – 27? (1 point) O x + 3 O x + 9 O x-1 O None of the above​

Answers

Answer:

(x+3) is a factor of your question

Step-by-step explanation:

x²-6x-27

x²+3x-9x-27

x(x+3)-9(x+3)

(x+3)(x-9)

Answer:

Hope it can help you and please mark me as a brainlist .....

what is the answer to y=-6x-3, -8x-3y=-1.

Answers

Answer:

I am in middle school

Step-by-step explanation:

..

PLEASE HELP I WILL GIVE BRAINLIEST!!!!
Solve the following system of equations with any method. Show all work and explain your thinking for each
step in the process.

2x- 10y = 10
Sx+9y =9

Answers

Answer: Let's solve for x.

2x−10y=10

Step 1: Add 10y to both sides.

2x−10y+10y=10+10y

2x=10y+10

Step 2: Divide both sides by 2.

2x

2

=

10y+10

2    answer

    x=5y+5

Step-by-step explanation:

Let's solve for s.

sx+9y=9

Step 1: Add -9y to both sides.

sx+9y+−9y=9+−9y

sx=−9y+9

Step 2: Divide both sides by x.

sx

x

=

−9y+9

x

s=

−9y+9

x

Answer:                         hope this helps:)

s= -9y+9/x

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