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3 years ago

Simplify the expression and combine like terms. 4(x−2)+2(x+1) =

Mathematics

2 answers:

Len [333]3 years ago

8 0

Answer:

6x -6

Step-by-step explanation:

4(x−2)+2(x+1)

Distribute

4x-8 +2x +2

Combine like terms

6x -6

Rudik [331]3 years ago

4 0

Answer:

Step-by-step explanation:

(4)(x)+(4)(−2)+(2)(x)+(2)(1)

=4x+−8+2x+2

4x+−8+2x+2

=(4x+2x)+(−8+2)

=6x+−6

pls mark me brainliest

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2 years ago

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Write an expression for the length of the rectangle. (Hint: Factor the area binomial and recall that Area=width times length)

cestrela7 [59]

Answer: A=l⋅w where A is the area of the rectangle, l is the length of the rectangle and w is the width of the rectangle.

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2 years ago

The data show the average monthly temperatures for two cities over a 6-month period. City 1: {20, 24, 40, 63, 76, 89} City 2: {4

Mrac [35]

Answer:

The MAD of city 2 is less than the MAD for city 1, which means the average monthly temperature of city 2 vary less than the average monthly temperatures for City 1.

Step-by-step explanation:

For comparing the mean absolute deviations of both data sets we have to calculate the mean absolute deviation for both data sets first,

So for city 1:

$Mean = x1 = \frac{20+24+40+63+76+89}{6}$

$x1 = \frac{312}{6}$

$x1 = 52$

Now to calculate the mean deviations mean will be subtracted from each data value. (Note: The minus sign is ignored as the deviation is the distance of value from the mean and it cannot be negative. For this purpose absolute is used)

$20-52 = -32=32\\24-52=-28=28\\40-52=-12=12\\63-52=11\\76-52=24\\89-52=37$

The deviations will be added then. $Mean Absolute Deviation = \frac{32+28+12+11+24+37}{6} \\=\frac{144}{6}\\=24$

So the mean absolute deviation for city 1 is 24 ..

For city 2:

$Mean = x2 = \frac{41+50+58+62+72+83}{6}$

$x2 = \frac{366}{6}$

$x2 = 61$

Now to calculate the mean deviations mean will be subtracted from each data value. (Note: The minus sign is ignored)

$41-61=-20=20\\50-61=-11=11\\58-61=-3=3\\62-61=1\\72-61=11\\83-61=22$

The deviations will be added then. $Mean Absolute Deviation = \frac{20+11+3+1+11+22}{6} \\=\frac{68}{6}\\=11.33$

So the MAD for city 2 is 11.33 ..

So,

The MAD of city 2 is less than the MAD for city 1, which means the average monthly temperature of city 2 vary less than the average monthly temperatures for City 1.

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2 years ago

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What is the answer to 10 = -4 x?

lawyer [7]

Solve for x
Divide both sides by -4
X= - 10/4
Now simplify by dividing top and bottom by 2
X= -5/2 or - 2 1/2

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3 years ago

(10 points!!!) AND I’LL MAKE YOU BRAINLEST

melomori [17]

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2 years ago

Simplify the expression and combine like terms. ​ ​ 4(x−2)+2(x+1) =

Simplify the expression and combine like terms. 4(x−2)+2(x+1) =