58. Graph the function y=x^2+3x-18. How many real roots does the function have?
1 answer:
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Answer:
58. 2 real roots; see attached for a graph
59. -6, 3
Step-by-step explanation:
58. A graphing calculator graphs this easily. The graph is shown in the attachment. There are 2 x-intercepts, hence 2 real roots.
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59. The x-intercepts are (-6, 0) and (3, 0), so the x-values x=-6 and x=3 satisfy the equation y = 0.
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Answer:
<h2>Volume = 153938.0 cm³</h2>Step-by-step explanation:
Volume of a cylinder = πr²h
where
r is the radius
h is the height
From the question
h = 10 cm
diameter = 140cm
We can find the radius using the formula
radius = 70 cm
Substitute the values into the above formula and solve
That's
V = (70)²(10)π
= 4900(10)π
= 49000π
= 153938.0400
We have the final answer as
<h3>Volume = 153938.0 cm³</h3>Hope this helps you