Answer:
A.
Step-by-step explanation:
If its positive then the equation will be also
Given expression: 
In order to simplify it to get an equivalent expression, we need to multiply all terms.
Let us simplify 
Therefore, 
=
.
<h3>Therefore,
is equivalent to
</h3>
Answer:
ii)
Step-by-step explanation:
Find the solution in the given attachement
Answer: A star has six lines of symmetry.
Step-by-step explanation:
A star in a flat plane has one line of symmetry, but it can be divided into up to three different angles (120 degrees). A hollow sphere is symmetrical on the inside and will have six lines of symmetry. But if you cut across its middle at any slight angle, you'll also see six lines of symmetry. So the answer is that stars can have either 1 or 6 lines of symmetry depending on how they are measured.
Let x be the distance (in feet) along the road that the car has traveled and h be the distance (in feet) between the car
and the observer.
(a) Before the car passes the observer, we have dh/dt < 0; after it passes, we have dh/dt > 0. So at the instant it passes the observer we have
dh/dt = 0, given that dh/dt varies continuously since the car travels at a constant velocity.
