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ki77a [65]
2 years ago
14

How to factorise x2 + 8x + 12

Mathematics
2 answers:
storchak [24]2 years ago
4 0

Answer:

(x+6) × (x+2)

Step-by-step explanation:

x² + 8x +12

x² +6x +2x + 12.  write 8x as a sum

x × (x+6) + 2x + 12.   factor out x from the expression

(x+6) × (x+2) .  factor out x+6 from the expression

final answer is (x+6) × (x+2)

elena-s [515]2 years ago
3 0

Answer:

I have made it in above figure

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You are taking a multiple-choice test that has six questions. Each of the questions has three answer choices, with one correct a
Nostrana [21]

Answer:

729 ways

Step-by-step explanation:

Given

Number of questions = 6

Choices = 3

Required

Number of ways of answering the questions

For each of the 6 questions;

There are 3 possible ways of selecting an answer;

The possible ways for the 6 questions is:

Possible\ Ways = 3 * 3 * 3 * 3 * 3 * 3

Possible\ Ways = 729

<em>Hence, there are 729 ways of answering the question</em>

4 0
3 years ago
A blank CD can hold 70 minutes of music. So far you have burned 25 minutes of music onto the CD. You estimate that each song las
zaharov [31]

Answer:

The possible numbers of songs that you can burn onto the CD is 11.

Step-by-step explanation:

The total storage capacity of CD =  70 minutes

Storage already used = 25 minutes

Hence, The available storage =  Total available  storage -  Used Storage

= 70 minutes - 25  minutes = 45 minutes

Hence, the CD has 45 minutes storage left.

Now, each song takes up 4 minutes of storage.

⇒ \textrm{Total number of songs possible} =  \frac{\textrm{Total storage left}}{\textrm{Time taken by each song}}

= \frac{45 minutes}{4minutes }  = 11.25

⇒The number of songs possible = 11.25 ≈  11

Hence, the possible numbers of songs that you can burn onto the CD is 11.

4 0
3 years ago
Dividing by 1/2 is the same as multiplying by what number
sergey [27]

Answer:

0.5

Step-by-step explanation:

7 0
3 years ago
Si tenemos un cuadrado cuyos lados miden 1/3 en 7 partes iguales, ¿Cuál es su área?
Nataly_w [17]

Answer:

English please?

Step-by-step explanation:

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8 0
3 years ago
Evaluate the following expression using the values given: Find 2r2 + 3s3 − r2 + 4t2 − r2 if r = −2, s = −3, and t = 5. −19 −37 2
crimeas [40]
2r² + 3s³ - r² + 4t² - r² = 3s³ + 4t²
<span>if s = -3 and t = 5
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Answer: 19
5 0
3 years ago
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