C is the one that multiplies to a negative number because
A multiples to positive 1
B also multpilies to positive 1 and d multiples to 0
A negative multiplied by a negative is a positive
A netative multiplied by a positive is a negative
Answer:
The sum of 78 and -78 is zero.
Step-by-step explanation:
I used a calculator ;)
Multiply 3 & 70 and divide by the answer of 6'1 6'4 you multiply them then your answer
First, for end behavior, the highest power of x is x^3 and it is positive. So towards infinity, the graph will be positive, and towards negative infinity the graph will be negative (because this is a cubic graph)
To find the zeros, you set the equation equal to 0 and solve for x
x^3+2x^2-8x=0
x(x^2+2x-8)=0
x(x+4)(x-2)=0
x=0 x=-4 x=2
So the zeros are at 0, -4, and 2. Therefore, you can plot the points (0,0), (-4,0) and (2,0)
And we can plug values into the original that are between each of the zeros to see which intervals are positive or negative.
Plugging in a -5 gets us -35
-1 gets us 9
1 gets us -5
3 gets us 21
So now you know end behavior, zeroes, and signs of intervals
Hope this helps<span />
The fisherman caught 365kg During El Niño. You subtract 540kg by 85.
