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3 years ago

Which of the following expressions are equivalent to 4x-6+8x+2

Mathematics

2 answers:

Len [333]3 years ago

8 0

Answer:

A) 12x - 4 and B) 4(3x - 1)

Step-by-step explanation:

You have to combine like terms to solve this problem. Any terms with the same variable are like terms, and all constants are like terms.

4x - 6 + 8x + 2

Here, 4x and 8x are like terms, so are -6 and 2, so we group them together

4x + 8x - 6 + 2

Now simplify

12x - 4 (4x + 8x = 12x, there are 4 'x's and you add 8 more 'x's,

you have -6 and add 2 to it). This is answer A

Each of these terms has a multiple of 4, so we can factor that term out to get answer B

4(3x - 1) (12x/4 = 3x, and -4/4 = 1)

exis [7]3 years ago

7 0

Answer:

A) 12x-4

and B) 4(3x-1)

Step-by-step explanation:

4x-6+8x+2

Rearrange the question

4x+8x-6+2

12x-4

B because when you simplify the equation 4(3x-1) = 12x-4

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Alika [10]

Answer:

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2 years ago

A camera has a listed price of $522.98 before tax. If the sales tax rate is 8.25%, find the total cost of the camera with sales

svetoff [14.1K]

Answer:

4,314.6

Step-by-step explanation:

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7 0

3 years ago

Standard deviation of 300, 785, 670, 187, 760, 724

White raven [17]

STEP 1

Mean = $\frac{300+785+670+187+760+724}{6} = \frac{3426}{6}=571$

STEP 2

Subtract the mean from each data value then square the answer
$300-571=-271$ ⇒ $(-271)^{2} =73441$
$785-571=214$ ⇒ $(214)^{2}=45796$
$670-571=99$ ⇒ $(99)^{2}=9801$
$187-571=-384$ ⇒ $(-384)^{2} =147456$
$760-571=189$ ⇒ $189^{2}=35721$
$724-571=153$ ⇒ $153^{2} =23409$

STEP 3

Add the squared answers in STEP 2 then find the mean

$\frac{73441+45796+9801+147456+35721+23409}{6}= \frac{335624}{6}=55937.3$

STEP 4

Square root the answer in STEP 3
$\sqrt{55937.3} =236.5$

Standard deviation is 236.5

7 0

3 years ago

The function f(x) = 4(4)x represents the growth of a fly population every year in a remote swamp. Jackie wants to manipulate the

Sauron [17]

The function f(x) = 4(4)x represents the growth of a fly population every year in a remote swamp.

calculates three times a year, not just once a year.

$f(x)= 4(4)^x$