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pashok25 [27]
3 years ago
13

What is the value of 2(x+x)-2 ?

Mathematics
1 answer:
LekaFEV [45]3 years ago
5 0

Answer:

2(x+x)-2

= 2(2x - 2

= 4x - 2

Step-by-step explanation:

You might be interested in
2(x+11) = -26 show all work pls
Degger [83]

Answer:

x = -24

Step-by-step explanation:

First, distribute 2 to all terms within the parenthesis:

2(x + 11) =

2 * x = 2x

2 * 11 = 22

2x + 22 = -26

Isolate the variable, x. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS. PEMDAS is the order of operations, and stands for:

Parenthesis

Exponents (& Roots)

Multiplications

Divisions

Additions

Subtractions

~

First, subtract 22 from both sides of the equation:

2x + 22 (-22) = -26 (-22)

2x = -26 - 22

2x = -48

Next, divide 2 from both sides of the equation:

(2x)/2 = (-48)/2

x = -48/2

x = -24

x = -24 is your answer.

~

4 0
2 years ago
What is the solution of the system of equations? 4x-3y=-1 3x-9y=33
ehidna [41]

Step-by-step explanation:

4x+13y=-9y+3y=33

17x=-6y=33

5 0
3 years ago
Let f(w) = 2w^3 - 5. What is f(4)?
ZanzabumX [31]
F(4) = 2(4)^3 -5
= 2(64) -5

= 128-5
= 123

Hope this helps!
3 0
3 years ago
Read 2 more answers
Describe how the variability of the distribution changes as the sample size increases. As the sample size increases, the variabi
wolverine [178]

Answer:

As the sample size increases, the variability decreases.

Step-by-step explanation:

Variability is the measure of actual entries from mean.  The less the deviations the less would be the variance.

For a sample  of size n, we have by central limit theorem the mean of sample follows a normal distribution for random samples of large size.

X bar will have std deviation as \frac{s}{\sqrt{n} }

where s is the square root of variance of sample

Thus we find the variability denoted by std deviation is inversely proportion of square root of sample size.

Hence as sample size increases, std error decreases.

As the sample size increases, the variability decreases.

7 0
3 years ago
Can anyone help with my geometry work ?
sasho [114]

Answer:

what should we do ,...?

Step-by-step explanation:

please write your questions!

6 0
3 years ago
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