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2 years ago

What is -2+3x=2x+6+x

1 answer:

3 0

-2+3x=2x+6+x
-2+3x= 3x+6
-3x = -3x

-2=6

No solution! -2 doesn’t not equal 6

Steps

1. Combine like terms( example combine like terms on the right side of the equation)

2. Subtract or add variable from one side

3. You get the answer

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One third of the sum of a number and four

STatiana [176]

Answer:

$\frac{1}{3} (n+4)$

That is what the expression would be

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2 years ago

3х + 1 = -11 What is the answer?

Fiesta28 [93]

Answer:

-4

Step-by-step explanation:

3x+1=-11

-1 -1

3x=-12

/3 /3

x = -4

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2 years ago

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The polygons are similar. Find the missing side length. NO LINKS!!!!

timurjin [86]

Answer:

CD = 27

Step-by-step explanation:

Given the triangles are similar then the ratios of corresponding sided are equal, that is

$\frac{CD}{KD}$ = $\frac{CB}{KL}$ , substitute values

$\frac{CD}{9}$ = $\frac{30}{10}$ = 3 ( multiply both sides by 9 )

CD = 27

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2 years ago

Make a conjecture about the next term in the sequence 3, -5, 7, -9, 11

iVinArrow [24]

Answer:

-13

Step-by-step explanation:

its counting odd numbers in order but switching their positive and negative

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2 years ago

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12.4. Measure of Dispersion 2076 Q.No. 15 Find the standard deviation of: 4, 6, 8, 10, 12.

Alenkinab [10]

Answer:

Standard deviation of given data = 3.16227

Step-by-step explanation:

Step(i):-

Given sample size 'n' = 5

Given data 4, 6,8,10,12

$Mean = \frac{4+6+8+10+12}{5} = 8$

Mean of the sample x⁻ = 8

Standard deviation of the sample

$S.D = \sqrt{\frac{Sum(x-x^{-} )^{2} }{n-1}}$

Step(ii):-

Given data

x : 4 6 8 10 12

x-x⁻ : 4 - 8 6-8 8-8 10-8 12-8

(x-x⁻) : -4 -2 0 2 4

(x-x⁻)² : 16 4 0 4 16

$S.D = \sqrt{\frac{Sum(x-x^{-} )^{2} }{n-1}}$

$S.D = \sqrt{\frac{16+4+0+4+16}{4}}$

S.D = √10 = 3.16227

Final answer:-

The standard deviation = 3.16227

8 0

2 years ago