Answer:
30ft²
Explanation:
The area of the plywood that she has:
8 ⋅ 9
=72ft²
The area of the plywood she cut
7 ⋅ 6
=42ft²
The area discarded should be:
72ft² - 42ft²
= 30ft²
The given statement "dual innervation is the term used to describe an organ that receives both sympathetic and parasympathetic motor impulses" is TRUE.
<h3>
What is dual innervation?</h3>
Dual innervation refers to an organ's ability to receive both sympathetic and parasympathetic motor impulses. Sympathetic responses are extensive throughout the body, which is partially explained by the fact that a single sympathetic preganglionic fiber may synapse with 20 or more postganglionic fibers.
Examples of organs with dual innervation include the heart and the eye.
The parasympathetic system slows heart rate whereas the sympathetic system speeds it up.
While the parasympathetic system causes the pupil of the eye to constrict, the sympathetic system causes the pupil to enlarge.
The heart and lungs have separate innervations.
The vagus nerve's impact on the pacemaker cells of the heart has a tiny probability of affecting the rate and force of heart muscle contraction.
Therefore, the given statement "dual innervation is the term used to describe an organ that receives both sympathetic and parasympathetic motor impulses" is TRUE.
Know more about dual innervation here:
brainly.com/question/29665163
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Answer:
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The number of ways the skaters can finish the competition is 40,320 ways
The different ways 3 of the skaters finish first, second and third is 56 ways
Given the following
- Number of skaters featured = 8 skaters
If the skaters finish the competition, the number of different ways the skaters finish the competition is expressed as:
8! = 8*7*6*5*4*3*2
8! = 56*30*24
8! = 40,320.
The number of ways the skaters can finish the competition is 40,320 ways
If 3 of the skaters finish first, second and third, the number of ways this can be done is given as:
8C3 = 8!/(8-3)!3!
8C3 = 8!/5!3!
8C3 = 8*7*6*5!/5!3!
8C3 = 56 ways
Hence the different ways 3 of the skaters finish first, second and third is 56 ways
Learn more on combination here: brainly.com/question/11732255
