3 years ago

Simplify: -3(x2 - 2x)

Mathematics

1 answer:

kvv77 [185]3 years ago

7 0

I hope this helps you

-3.x^2-3. (-2)

-3x^2+6

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A railway car is shaped like a rectangular prism with a length of 18 meters, a width of 3 meters, and a height of 4 meters.

larisa86 [58]

The volume of railway car is 216 cubic meters

Solution:

Given that, Railway car is shaped like a rectangular prism with a length of 18 meters, a width of 3 meters and a height of 4 meters

To find: volume of railway car

The volume of rectangular prism is given as:

$v = l \times w \times h$

Where,

"l" is the length and "w" is the width and "h" is the height of prism

From given question,

length = 18 meters

width = 3 meters

height = 4 meters

Substituting the values, we get

$v = 18 \times 3 \times 4 = 216$

Thus volume of railway car is 216 cubic meters

3 0

3 years ago

A sample is best defined as ________________. the first 20% of the population the last 20% of the population a smaller group sel

morpeh [17]

A sample is best defined as 'a smaller group selected from a given population'.

5 0

3 years ago

Am I doing this right plz help me

Elza [17]

Your original inequality is
.. w -2 ≤ 8
The additive property of equality applies to inequalities as well as to equations. You use the additive property of equality to solve this. Add 2 to both sides.
.. w -2 +2 ≤ 8 +2
The purpose of adding 2 is to cancel the effect of subtracting 2. That is, -2+2=0, and w+0 = w.
.. w ≤ 10

The correct selection would be B.

4 0

3 years ago

So it says to show your work . I don't know how to do this

mrs_skeptik [129]

Answer:

Did not let me say app names lol