Pls factorise x²-7x+12

Answers

Answer 1

Step-by-step explanation: The first thing you're going to probably

try to do here is to factor out a greatest common factor.

The problem is, there is no factor that is in common

to all three of these terms so you may think it's unfactorable.

However, this trinomial is in a special form.

We have an x squared term, an x term, and a constant term.

When a trinomial is in this form, it can be

factored as the product of two binomials.

So start by setting up two sets of parentheses.

Inside each set, we will have the two terms that compose each binomial.

So we have (    )(    ).

The first term is a factor of the x² term, x · x.

For the second term, we need factors of 12 that add to -7.

Since the middle term is negative, we use the negative factors of 12.

Notice that -4 and -3 add to -7 and multiply to be 12.

So our answer is (x - 4)(x - 3).


Related Questions

the perimeter of a semicircle with a radius of 11cm

Answers

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Perimeter of circle find by following equation :

[tex]P = 2 \times (\pi) \times (radius)[/tex]

Semicircle is half of circle , thus :

[tex]P = \frac{1}{2} \times (2) \times (\pi) \times (11) \\ [/tex]

[tex]P = 11\pi[/tex]

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Answer:

56.54

Step-by-step explanation:

R=11cm

circumference=2pieR

2*22/7*11

44/7*11

69.08

circumference/2

69.08/2

34.54

diameter

11*2

22

perimeter= 34.54+22

56.54

the graph below shows a quadratic function f(x) and an absolute value function g(x)

which of the following x-values are approximate solutions to the equation f(x)=g(x)? select all that apply​

Answers

Answer:

The x-values that are approximate solution of the equation [tex]f(x) = g(x)[/tex] are [tex]x_{1} \approx -3.5[/tex] and [tex]x_{2}\approx 5[/tex], respectively.

Step-by-step explanation:

From graph we infer that the x-values that represents a solution to the system of equations corresponds to those values of x in which both functions coincide. As we see, there are two x-values for [tex]f(x) = g(x)[/tex], which are described below:

[tex]x_{1} \approx -3.5[/tex] and [tex]x_{2}\approx 5[/tex]

The x-values that are approximate solution of the equation [tex]f(x) = g(x)[/tex] are [tex]x_{1} \approx -3.5[/tex] and [tex]x_{2}\approx 5[/tex], respectively.

hduuw8sisihaisiswkjznaswiqqlnaa

Answers

Answer:

whats ur question?

Step-by-step explanation:

Answer:

I don't understand

Step-by-step explanation:

Sorry, I cannot help

25 POINTS!! PLEASE HELP!

Answers

Answer:

The length of TQ is 14.

Step-by-step explanation:

The length of SV and VS are the same.

4x - 1 = 15

4x = 16

x = 4

Similarly, the length of TS and TQ are the same.

3x + 2 = 3(4) + 12 = 14

In chemistry you need to dilute an alcohol solution down. You have a 90% alcohol solution and a 20% alcohol solution. If you want to end up with 335L of 50% alcohol, how much of each do you need?​

Answers

Answer:

Girl what is the answer

Step-by-step explanation:


Work out the sum of the interior angles of any quadrilateral​

Answers

Answer:

19

Step-by-step explanation:

If x - 3 Is a factor P(x) = x ^ 3 - 7x ^ 2 + 15x - 9, which of the following represents the complete factorization for P(x) ?

A. (x-3)(x+4)(x+1)
B. (x-3)(x+3)(x+1)
C. (x-3(x-3)(x-1)
D. (x-3)(x+3)(x-1)

Answers

the answer is c, i just got this question

Answer: C

Step-by-step explanation:

Can anyone tell me if I have this correct?

Answers

What do you have to do?

Aaaaaa help I’m stuck at F I really need to do this so I could get a D please with explanation

Answers

Answer:

$1.51

Step-by-step explanation:

1.25 lb. of dried fruit  :  [tex]\frac{\$1.84}{lb.}*\frac{1.25\ lb.}{1}=\$2.30[/tex]

0.5 lb. of cereal  :  [tex]\frac{\$2.38}{lb.}*\frac{0.5\ lb.}{1}= \$1.19[/tex]

Cost = $2.30 + $1.19 = 3.49

Money = $5

$5 - $3.49 = $1.51 in change

Find an equation of a line that is parallel to y = 5x + 9 and passes through
the point (3, 11).

Answers

Answer:

y = 5x - 4

Step-by-step explanation:

The equation y = 5x + 9 currently does not pass through the point (3, 11). It asks us to create the equation of a line parallel to y = 5x + 9. So all we have to change is the 9, where the line passes through the y-coordinate. The slope, 5x, has to stay the same, otherwise, the new line will not be parallel to  y = 5x + 9.

The line has to pass through to point (3, 11). The 3, stands for the x value, and 11 the y value. If we start at the y value of -4, that means the very next point would be (1, 1), and the next one, (2, 6), and the final one, (3, 11). This is because we know the slope of the line is 5x, that means for every 1 gained x value, the y value gains 5 values.

So, the equation of the new line would be this:

y = 5x - 4

I Hope That This Helps! :)

Felicia gives her dog medication daily. She gives him 5 milliliters for each 10 pounds of his weight. He
weighs 40 pounds. How many liters of medicine does she give him each day? (If your answer is
something like 0.080, do not include the trailing zero. Example: Type 0.080 as 0.08) *
Your answer

Answers

Answer:

your answer is 20mL or .020 Liters

Step-by-step explanation:

5 x 4 is 20, we do not add the 40 because in the problem it says 5mL for every 10 pounds, so, therefore, your answer is 20mL/.020 Liters

hope this helps have a great day ツ

Josie walks 3/4 mile in 1/5 hour. What is Josie's speed in miles per hour?

Answers

The speed is 3.75 miles per hour.
3.75 cuz 15/4 is how much she walks in one hour

Think I fell asleep during this lesson... whoops ¯\_(ツ)_/¯

**Wrong answers will be reported

Answers

Answer:

I believe it's 65 degrees.. I'm sry if wrong I may have fell asleep too

Step-by-step explanation:

HELP ASAP !! NEED ANSWERS !!!

Answers

Answer: 180 degrees clockwise

Step-by-step explanation:

I need help with this​

Answers

Answer:

y=1

Step-by-step explanation:

(a) the probability that a vampire bat would pick A (b) the probability that a vampire bat would pick C (c) the probability that a vampire bat would pick T

Answers

Answer:

See Explanation

Step-by-step explanation:

See attachment for complete question.

From the attachment, we have that:

[tex]A = 71[/tex]

[tex]C = 121[/tex]

[tex]T = 66[/tex]

First, we calculate the total

[tex]Total = A + C + T[/tex]

[tex]Total = 71 + 121 + 66[/tex]

[tex]Total = 258[/tex]

Solving (a): Probability of A

This is calculated using:

[tex]Probability = \frac{A}{Total}[/tex]

[tex]Probability = \frac{71}{258}[/tex]

[tex]Probability = 0.275[/tex]

Solving (b): Probability of C

This is calculated using:

[tex]Probability = \frac{C}{Total}[/tex]

[tex]Probability = \frac{121}{258}[/tex]

[tex]Probability = 0.469[/tex]

Solving (b): Probability of T

This is calculated using:

[tex]Probability = \frac{T}{Total}[/tex]

[tex]Probability = \frac{66}{258}[/tex]

[tex]Probability = 0.256[/tex]

Jenna multiplied four numbers together and then divided by -2. The result was a positive value.

Which of the following statements MUST be true?

An odd number of factors were negative.
None of the factors were negative.
An even number of factors were negative.
All of the factors were negative.

Answers

Answer:

natatae ako shuta hehhe

de joke lang

Answer: C: An odd number of factors were negative.

Step-by-step explanation:

a positive number being the answer an odd number number of factors would be needed for it to be

On a piece of paper, graph y+4<1/2 x - 2. Then determine which answer
choice matches the graph you drew
.
A. Graph A
B. Graph B
C. Graph
D. Graph D

Answers

Answer:

On a piece of paper, graph y+4<1/2 x - 2. Then determine which answer

choice matches the graph you drew

.

Step-by-step explanation:

On a piece of paper, graph y+4<1/2 x - 2. Then determine which answer

choice matches the graph you drew

.

Answer: the correct answer is D. It says less than or equal to and that means it’s shaded below the line and a full line. Alex said it was correct

Step-by-step explanation:

Macy eats 1 piece of candy corn on October 1st,
3 on October 2nd, 5 on October 3rd, and so on
through the 31 days of the month. Each day she
eats 2 more pieces than the day before. In all,
how many pieces of candy corn does Macy eat
in October?
Please explain

Answers

Answer:

93

Step-by-step explanation:

if you do 31 times 1 + 31 times 2, you get your answer

(i think that's right if not i'm sorry)

PLEASE HELP I DONT *look at pic*

Choose the appropriate value for x for the following similar triangles given below.

Answers

Answer: A. (It’s 25)

Step-by-step explanation:

baker has 5\dfrac145 4 1 ​ 5, start fraction, 1, divided by, 4, end fraction pies in her shop. She cut the pies in pieces that are each \dfrac18 8 1 ​ start fraction, 1, divided by, 8, end fraction of a whole pie.

Answers

Answer:

The answer is "She cut a total of 42 pieces of pie".

Step-by-step explanation:

Given :

Total pie=  [tex]5 \frac{1}{4}[/tex]

cut pie = [tex]\frac{1}{8}[/tex]

The number of pieces of the pie she has=?

Solve the mixed fraction value:

[tex]\to 5 \frac{1}{4}= \frac{21}{4}[/tex]

If she cuts the pieces into the entire pie, that is  = [tex]\frac{1}{8}[/tex]  

So, the equation is:

[tex]\to \frac{21}{4} = \frac{1}{8} \times x[/tex]

[tex]\to x= \frac{21 \times 8}{4}\\\\ \to x= 21 \times 2\\\\ \to x=42[/tex]

what does 7/3 look like?

Answers

I’m guessing you mean as a decimal. So it would be 2.333333333333 (repeating 3)

how do you know that 4/11 is a reapeating decimal

Answers

Answer:

Because 4 divided by 11 does not have an exact answer, it just keeps going on.

Step-by-step explanation:

Which of the following transformations is the only one that can change the lengths of its sides but remain similar??
A) Translation
B) Rotation
C) Reflection
D) Dilation ​

Answers

Answer:

D

Step-by-step explanation:

It is dilation because transformation is moving and sliding, rotation is spinning, reflection is a mirroring of the shape upon a certain line or axis, and dilation is the change in size leaving 1 point the same.

Find the quotient mentally. Convert a fraction into a decimal

2 and one half divided by one third

Answers

Answer:

7.5

Step-by-step explanation:

A triangle has interior angle measures of 5s, 3s - 9°, and 45°, what is the value of s?

Answers

Answer:

s = 18

Step-by-step explanation:

Rearrange the formula to make the letter in the square bracket the subject
y= 3x - 5 (x)

Answers

Answer:

y= 3x - 5

y+5 = 3x

x = (y+5)/3

Answer:

x = [tex]\frac{y+5}{3}[/tex]

Step-by-step explanation:

Given

y = 3x - 5 ( add 5 to both sides )

y + 5 = 3x ( isolate x by dividing both sides by 3 )

[tex]\frac{y+5}{3}[/tex] = x

Which expression is equivalent to -6(-2/3+2x)
-4-12x
-4+2x
4-12x
4+12x

Answers

C. Is your answer to the question
Answer:4-12xStep-by-step explanation:brainliest plzs

16. Find the value of x*
8. 2x-6

A 10
B 7
C -7
D -10

Answers

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[tex]2x - 6 = 8[/tex]

Add sides 6

[tex]2x - 6 + 6 = 8 + 6[/tex]

[tex]2x = 14[/tex]

Divide sides by 2

[tex] \frac{2x}{2} = \frac{14}{2} \\ [/tex]

[tex]x = 7[/tex]

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The correct answer is (( B )) .

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The answer to this is an

If f(x)=x2-1, what is f(4)?

Answers

Explanation
4^2-1
16-1
Answer
15

Answer: 15

Step-by-step explanation:

Substitute 4 in x.  

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