Answer: The polynomial 3x^2 is a monomial with a degree of 2.
The polynomial x^2y + 3xy^2 + 1 is a trinomial with a degree of 3.
Part (a)
<h3>Answer: -2</h3>
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Explanation:
Draw a vertical line through -2 on the x axis. This vertical line will cross the blue parabola at some point P. From point P, draw a horizontal line to the y axis. You should arrive at y = -2. Figure 1, in the attached diagram below, shows this process.
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Part (b)
<h3>Answers: x = -3 or x = 1</h3>
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Explanation:
Draw a horizontal line through y = 1 on the y axis. This is because y = f(x).
This horizontal line crosses the parabola at two places. Drop a vertical line straight down to the x axis to note the x values that make f(x) = 1 true.
You should find the solutions to be x = -3 and x = 1
See figure 2.
<h2>
Answer:</h2>
The angle of rotation through which the image of a regular pentagon coincide with its preimage is:
Option: B
B. 72 degrees
<h2>
Step-by-step explanation:</h2>
Rotational symmery--
Rotational symmetry is the minimum angle by which a figure is rotated such that it coincides with the original figure.
We know that for any n-regular polygon (i.e. a regular polygon with n number of sides) has a rotational symmetry of:
Here we are asked to find the rotational symmetry in case of pentagon i.e. n=5
The angular symmetry is:
28 mph is approximately 41.0666... fps.
This is because 1mph is approximately 1.4666... fps.