Complex Numbers. 1. Evaluate the following. Express all final answers in rectangular form. a. A = √cos[ln(-π)] b. B = (³)e-j 2. Express cos(40) in terms of cos 0 only.

Q: A student buys 1 ticket for a movie and then buys a snacks. The equation y 2.50z + 8.75 represents…

A: Answer: i)Each snacks  cost is $2.50 iv)Each movie ticket cost is $8.75 These two are true

Q: The circumference of Earth is approximately 2.49 x 10" miles. If Philip traveled around the…

A: Given  Circumference of earth = 2.49×104 miles  Since Philip travelled around the circumference 20…

Q: Square ABCD is rotated clockwise 90 around the origin. Which side in the new square corresponds to…

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Q: Mr. Roseboro asks his students to write an expression using exponents that is equivalent to 81. The…

A: Given query is to find which expression is equals to 81.

Q: Two line segments, AB and CD, lie along a straight line as shown on the coordinate plane. C -3 -2 -2…

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Q: The mean weight of a newborn baby in North America is 120 ounces (oz). We want to test the…

A: The test calculations are as follows:

Q: Denise wants to irrigate a circular field. She will irrigate the field with a straight pipe, as…

A: The solution for the the above question is as shown below.

Q: The table shows the average number of minutes customers at a credit union waited in line and the…

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Q: Suppose the temperature of a metal plate is given by f (x, y) = the temperature of the metal plate…

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Q: Students at a school are surveyed about preferences for school supplies. The table shows the…

A: According to question given that if a students prefers pensApproximate probability the student also…

Q: In a July 23, 2009, Harris Interactive Poll, 1015 advertisers were asked about their opinions of…

A: Introduction In the given scenario, the survey was conducted to know people's opinions about…

Q: Find the area of the shaded region. The graph depicts the standard normal distribution of bone…

A: We have to find the area under the Standard Normal curve to the right of z = -1.07.

Q: Find the indicated z score. The graph depicts the standard normal distribution with mean 0 and…

A: Let Z be random variable from standard normal distribution with mean = 0 and standard deviation = 1…

Q: A scatter plot suggests a negative linear association. Which could be the scenario represented by…

A: The negative association means that when one variable increases then the other variable decreases.…

Q: A triangle has vertices at (1, 3),(-3, 8), and (-6, 9). If the triangle is dilated with the scale…

A: Given vertices of a triangle are (1,3) , (-3,8) , (-6,9)  scale factor =k=4 find the new vertices

Q: Which figure represents the equation from the Pythagorean Theorem, a? +b = ? b.

A: Pythagoras theorem: In a right angle triangle, Hypotenuse2=Perpendicular2+Base2 If a triangle has a…

Q: 40°F Clear A rental car company charges $74.90 per day to rent a car and $0.13 for every mile…

A: Given that, a rental car company charges $74.90 per day  to rent a car and, $0.13 for every mile…

Q: At Mount Rushmore, the sculpture of George Washington's head is approximately 60 feet in height. 60…

A: Simple calculation

Q: A cylindrical mailing tube has a length of 20 inches and diameter of 4 inches. What is the…

A: Use volume formula of cylinder

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A: Given:   The parking cost, p= $10.50 Ticket cost per person, c= $32.50 Total amount having to spend,…

Q: Jamal works in retail and earns a base monthly salary plus a commission for his sales for each…

A: If There is No Sales then Amount of sales x =0; put x = 0 in the Equation y = 3400 + 0.05x y = 3400

Q: Jackson and Ginger are both learning to ride a bike. Jackson can travel y= 4x miles, and Ginger…

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Q: Explain why it is impossible for three adjacent corners of a region of feasible solutions to…

A: According to the given information, it is not possible for three adjacent corners of a region of…