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3 years ago

Write in factored form 6x – 3y + 12

Mathematics

1 answer:

satela [25.4K]3 years ago

4 0

Answer:

3(2x-y+4)

Step-by-step explanation:

find the greatest common factor from all of them..which is 3

and then divide each number by it

3(2x-y+4)

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Midnight Margaret’s school notebooks are onsale this month for 20% off regular prices. If apack of 5 notebooks normally costs $1

ch4aika [34]

Explanation:

Discount = 20%

The cost of 5 notebooks = $10

The cost of 1 notebook before applying discount = $10/5 = $2

Applying the discount on the original price:

Discount = $10 × 20% = 10 × 0.20

Discount = $2

The sales price of the 5 notebooks = original price - discount

The sales price of the 5 notebooks = $10 - $2

The sales price of the 5 notebooks = $8

The sales price of 1 notebook = $8/5

The sales price of 1 notebook = $1.6

The amount saved per notebook = The cost of 1 notebook before applying discount -

$2 -

3 0

1 year ago

It has been estimated that only about 30% of California residents have adequate earthquake supplies. Suppose we are interested i

lidiya [134]

Answer:

Step-by-step explanation:

We are given that 30% of California residents have adequate earthquake supplies.

a) Ramon variable X denotes the number of the california residents that have adequate earthquake insurance

B) x can take value 1 ,2 ,3 ......

C)The distribution of random variable is geometric distribution with parameter p=0.3

The pmf of geometric distribution is

$P(X=x)=0.3(1-0.3)^{x-1} , x=1,2,3...$

D)P(X=1) or P(X=2)=P(X=1)+P(X=2)

P(X=1) or P(X=2)= $0.3(1-0.3)^{1-1}+0.3(1-0.3)^{2-1}=0.51$

$P(X \geq 3)=1-P(X$

$E(X)=\frac{1}{p}$

p is the resident who does not have adequate earthquake supplies.

p = 1-0.3 = 0.7

$E(X)=\frac{1}{0.7}=1.42$

G) $E(X)=\frac{1}{q}=\frac{1}{0.3}=3.33$

8 0

4 years ago

Beth finished a race in 4.59 minutes. Ana finished the race in 0.7 minutes less than Beth. Fran finished the race in 1.05 minute

Firlakuza [10]

First you would wanna subtract 0.7 from 4.59 so you would get 4.59-0.7= 4.52. then you would wanna do 4.52-1.05= 3.47 for Fran

7 0

3 years ago

Read 2 more answers

A and B are partners sharing profit and loss in the ratio of 3:2. A new partner C is admitted and 1/4 share off profit is given.

Gre4nikov [31]

Answer:

Correct option is: 9:6:5

Step-by-step explanation:

I'm not sure but hope it helps.

6 0

3 years ago

Which polynomials are prime? check all that apply. 15x2 10x – 9x 7 20x2 – 12x 30x – 18 6x3 14x2 – 12x – 28 8x3 20x2 3x 12 11x4 4

FrozenT [24]

The options that are prime polynomials are,

15x^2 +10x -9x+7, 8x^3+20x^2+3x+12 and 11x^4+4x^2-6x^2-16

<h3>What is the prime polynomial?</h3>

A polynomial with integer coefficients that cannot be factored into polynomials of lower degree, also with integer coefficients, is called an irreducible or prime polynomial.

To determine all options in order to check that the polynomials are prime or not:

1). 15x^2 +10x -9x+7

5x(3x + 2) - (9x - 7)

Therefore, this polynomial can not be factored into lower degree polynomial. Therefore, it is a prime polynomial.

2). 20x^2-12x+30x-18

4x(5x - 3)+6(5x-3)

(4x + 6)(5x - 3)

Therefore, this polynomial is converted into a lower degree polynomial. Therefore, it is not a prime polynomial.

3). 6x^3+14x^2-12x-28

2x^2(3x+7)-4(3x+7)

(2x^2-4)(3x+7)

Therefore, this polynomial is converted into a lower degree polynomial. Therefore, it is not a prime polynomial.

4). 8x^3+20x^2+3x+12

4x^2(2x+5)+(3x+20)

Therefore, this polynomial can not be factored into lower degree polynomial. Therefore, it is a prime polynomial.

5). 11x^4+4x^2-6x^2-16

x^2(11x^2+4)-2(3x^2+8)

So, this polynomial can not be factored into lower degree polynomial. Therefore, it is a prime polynomial.

To learn more about the prime polynomial visit:

brainly.com/question/16749843

6 0

2 years ago