Answer:
sound
Step-by-step explanation:
blind humans can detect things by speaking or clicking their stick the same way animals send waves of sound to see things in their path.
The answer could be c or a
Answer:
rational
Step-by-step explanation:
irrational is something like pi or square root of 3, -27 is a simple number.
Answer:
A=30 in
Step-by-step explanation:
Solution
A=bh=5·6=30
I'm assuming you're referring to problem 6. You are asked to find the number of x intercepts or roots, which is another term for "zero". I prefer the term root or x intercept as "zero" seems misleading. Anyways, all we do is count the number of times the graph crosses the x axis. This happens 4 times as shown in the attached image below. I have marked these points in red. The graph can directly cross over the x axis, or it can touch the x axis and then bounce back. Either way, it is considered an x intercept.
<h3>Answer: there are 4 x intercepts (or 4 roots)</h3>