Answer:
8x^6-10x^5+4x^4-5x^3-4x+5
Step-by-step explanation:
Lest distribute the expression given
this is multiply the first term (4x) with the longer expression (2x^5+x^3-1) and then, multiply the second term (-5) with the longer expression (2x^5+x^3-1).
When the above is finish, simply sum all together.
4x* (2x^5+x^3-1)= 8x^6 +4x^4-4x
-5*(2x^5+x^3-1)=-10x^5-5x^3+5
The sum of all together (respecting the coefficient they belong) is shown:
8x^6-10x^5+4x^4-5x^3-4x+5
They aren’t brackets, they’re parentheses. Careful not to confuse them because they aren’t the same. The parentheses mean to distribute, so the 2x-3 would become 12x-18 multiply that by .5 and you get 12x-9=2x+4 then subtract the 2x from the 12x, and add the -9 to 4 you should end up with 10x=13. Divide, and the answer is x=1.3
Answer:
Well, if we know that an obtuse angle is an angle greater than 90 degrees, and that a triangle's angles MUST sum up to 180 degrees and contain three angles. Then it logically follows that there's no way for a triangle to have 3 angles AND have two of the three be greater than or equal to 90 degrees as the remaining angle would have to be zero degrees or some "negative angle"- which I am pretty sure doesn't exist lol! As for a proof, I think you can cook up something with what I have given you so far :)
Answer:
Slope
Step-by-step explanation:
slope is the ratio of the vertical and horizontal changes between two points on a surface or a line
Answer:
Step-by-step explanation:
y = ⅖x-2
slope of line is ⅖
slope of any perpendicular to line is -5/2
point-slope equation for line of slope -5/2 that passes through (-4,-3):
y+3 = (-5/2)(x+4)