2. what is the difference? 10c^3 - 8c^3 a) 18c^3 b) 2c^3 c) 3c^6 d) -80c^6

b) 2c^3

Step-by-step explanation:

The expression may be simplified by factorizing the variable to separate it from the numbers.

The numbers are then simplified with the result of the simplification multiplied by the separated variable.

10c^3 - 8c^3 =  c^3(10 - 8)

= c^3 (2)

= 2c^3

-3

step-by-step explanation:

a drawing really does here:

so i draw the horizontal line y=2 and the vertical line x=-2 at this intersection i put b (this is where my right angle is going to be).   so point b is at (-2,2).   point a is 5 units long and is also on y=2 so this point has to be (3,2) or (-7,2) -doesn't matter i will go with (3,2).

now we know c is at (-2,y) we don't know the y yet bet we know that c is on x=-2.

we have the area of the triangle is .5bh=12.5

we know the base length is 5 (ab)

we have the height is (2-y) if you look at your

plug in

.5(5)(2-y)=12.5

solve for y to get the y-coordinate for c

2.5(2-y)=12.5

divide both sides by 2.5 giving:

2-y=5

now subtract 2 on both sides

-y=3

y=-3

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step-by-step explanation: