9+7i
Answer:
9 is the real part and 7i is the imaginary part
Step-by-step explanation:
A complex number is written in the form a+bi where a is the real part and bi is the imaginary part
9 = real part
7i is the imaginary part
Answer:
Hence, volume is: cubic units.
Step-by-step explanation:
We will first express our our equation of the curve and the line bounded by the region in terms of the variable y.
i.e. the curve is re
and the line is given as:
Since after rotating the given region about the line AB.
we see that for the following graph
the axis is located at x=1.
and the outer radius(R) is:
and the inner radius(r) is:
Now, the area of the graph= area of the disc.
Area of graph=
Now the volume is given as:
On calculating we get:
Volume= cubic units.
The volume V generated by rotating the given region about the specified line R3 about AB is
Further explanation:
Given:
The coordinates of point A is
The coordinates of point B is
The coordinate of point C is
The value of y is
Explanation:
The equation of the curve is
Solve the above equation to obtain the value of x in terms of y.
The equation of the line is
After rotating the region is about the line AB.
From the graph the inner radius is and the outer radius is
The volume can be obtained as follows,
Further solve the above equation.
The volume V generated by rotating the given region about the specified line R3 about AB is
Learn more:
1. Learn more about inverse of the functionbrainly.com/question/1632445.
2. Learn more about equation of circle brainly.com/question/1506955.
3. Learn more about range and domain of the function brainly.com/question/3412497
Answer details:
Grade: High School
Subject: Mathematics
Chapter: Volume of the curves
Keywords: area, volume of the region, rotating, generated, specified line, R3, AB, rotating region.
Answer:
20
Step-by-step explanation:
Simplifies to 9/10 which is 90%. Hope this helps!
Answer:
The probability is 0.3576
Step-by-step explanation:
The probability for the ball to fall into the green ball in one roll is 2/1919+2 = 2/40 = 1/20. The probability for the ball to roll into other color is, therefore, 19/20.
For 25 rolls, the probability for the ball to never fall into the green color is obteined by powering 19/20 25 times, hence it is 19/20^25 = 0.2773
To obtain the probability of the ball to fall once into the green color, we need to multiply 1/20 by 19/20 powered 24 times, and then multiply by 25 (this corresponds on the total possible positions for the green roll). The result is 1/20* (19/20)^24 *25 = 0.3649
The exercise is asking us the probability for the ball to fall into the green color at least twice. We can calculate it by substracting from 1 the probability of the complementary event: the event in which the ball falls only once or 0 times. That probability is obtained from summing the disjoint events: the probability for the ball falling once and the probability of the ball never falling. We alredy computed those probabilities.
As a result. The probability that the ball falls into the green slot at least twice is 1- 0.2773-0.3629 = 0.3576