Answer: Hello there!
we have the function f(x) = IxI/x
Then this function can be piecewise writen as:
f(x) = 1 if x > 0
f(x) = -1 if x < 0
because:
suposse that n is a number greater than 0, then:
f(n) = InI/n = n/n = 1
and this is independent of the number n, so for all the positive values of x, we have f(x) = 1
and
f(-n) = I-nI/(-n) = n/(-n) = -1
and again, this does not depend on the value of n, so for all the negative values of x, we have f(x) = -1.
On the other hand, the Heaviside function is defined as:
H(x) = 1 if x>0
H(x) = 0 if x<0
Then the difference is that, when the Heaviside function takes the value of 0 for negative values of x, our function f(x) takes the value of -1 for negative values of x.
Answer:
<h2>7x² + 9x + 90</h2>
Step-by-step explanation:
(7x + 9)x + 90 <em>use the distributive property </em><em>a(b + c) = ab + ac</em>
= (7x)(x) + (9)(x) + 90
=7x² + 9x + 90
Answer:
5/b
Step-by-step explanation:
you would want to add your 1+4 together on top of your b which is your common denominator in this case and you should end up with 5/b
Answer:
63
Step-by-step explanation:
The formula for volume of a box is length×width×height = volume
So you would multiply 3.5×6×3=63
