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4 years ago

What is -2(a+b)= -2a - 2b

Mathematics

1 answer:

exis [7]4 years ago

7 0

Answer:

-2(a+b)=-2a-2b

Equation is alway true

Rearrange:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

-2*(a+b)-(-2*a-2*b)=0

Step by step solution :

Step 1 :

Equation at the end of step 1 :

(0 - 2 • (a + b)) - (-2a - 2b) = 0

Step 2 :

Equation at the end of step 2 :

0 = 0

Step 3 :

Equations which are always true :

3.1 Solve 0 = 0This equation is a tautology (Something which is always true)

Equation is alway true

Step-by-step explanation:

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Domain and range of g(x)= 5x-3/2x+1 Solve for domain and range?

alukav5142 [94]

The domain and the range

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3 years ago

What is the product of 25.785 and 0.27?

Ganezh [65]

Answer:

6.96195

Step-by-step explanation:

Solve by multiplying

25.785

0.270

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6.96195

7 0

3 years ago

The volume of a room that is 23 feet in W , 10 feet in D, and 8 feet in H is?

Solnce55 [7]

The volume of the room is: 1840 ft^3

Step-by-step explanation:

The volume is the capacity of a given figure.

Given

Width = w = 23 feet

Depth = d = 10 feet

Height = h = 8 feet

The formula for volume is:

$V = W*D*H\\= 23*10*8\\=1840\ ft^3$

The volume of the room is: 1840 ft^3

Keywords: Volume, Box

Learn more about volume at:

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6 0

4 years ago

Which algebraic rule describes the 270° counter-clockwise rotation about the origin?

Zolol [24]

Let's say the point is (x,y) and it lies in 1st quadrant with both x and y as positive ,

Now let's say that the point is rotated by 270 degrees counter clockwise

It means The point will shift to the 4th quadrant , and we know that in 4th quadrant , the x is positive and y is negative ,

Also , as it is rotated by 270 degrees , the x and y values will interchange

SO there are two steps

1) Change the sign of x

2) Interchange the x and y values , i.e swap , x with y and y with x

4 0

3 years ago

Read 2 more answers

The LCM of 4, 9, and 10 is _______. 36 180 40 90

Anna [14]

Answer:

180

Step-by-step explanation:

Multiples of 4:

4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60, 64, 68, 72, 76, 80, 84, 88, 92, 96, 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140, 144, 148, 152, 156, 160, 164, 168, 172, 176, 180, 184, 188

Multiples of 9:

9, 18, 27, 36, 45, 54, 63, 72, 81, 90, 99, 108, 117, 126, 135, 144, 153, 162, 171, 180, 189, 198

Multiples of 10:

10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, 140, 150, 160, 170, 180, 190, 200

Stay safe and Merry Christmas! :)

8 0

3 years ago

Read 2 more answers