A polynomial p has zeros when x=5, x=-1 and x=-1/4
2 answers:
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Answer:
nonlinear
Step-by-step explanation:
The degree of x in the equation is not 0 or 1, so the function is nonlinear.
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<em>Additional comment</em>
Your function graphs as a parabola, not a straight line. A function is only linear if its graph is a straight (non-vertical) line.
Answer:
15.
16. 10 ml of 20% saline and 40 ml of 10% saline
Step-by-step explanation:
A chemist takes x ml of 20% saline and y ml of 10% saline. In total, he takes
x + y ml that is 50 ml, so
There are ml of salt in x ml of 20% saline and
ml of salt in 10% saline. There are
ml of salt in 50 ml of 12% saline. Thus,
15. We get the system of two equations:
16. Solve this system. From the first equation:
Substitute it into the second equation: