Complex numbers Questions and Answers

Rationalize the denominator 6 5 6 Use sqrt to input a square root into WeBWork For example sqrt 5 represents 5 Make sure to simplify all square roots completel Make sure your fraction is completely reduced a well

True or false for all real numbers x if x 1 then 2x 3 2 is a proposition True False

11 mi 14 mi

Let u 5 2 3 v 0 1 5 and w 2 6 5 Compute the indicated vectors v 7 25 5 a u v b u v c u v w 7 25 5 d w w v 21 6 31 000 e w w 0 0 0 X X

Factor the following polynemial given that it has a zero at 5 with multiplicity 2 x 4 1x 3 57x 3 5x 700

Determine if t

An amount A is initially 13 To find next year s amount we multiply this year s amount by 6 Find a formula that gives the amount A after t years

Prove that sin 2 x 45 cos 2 x 45 sin2x

A a b c d e f g x y z B c r a z y Find the following See Example 1 a n A b n B c n ANB d n A U B

The function f is given by the graph be

The function f is given by the graph below

A television camera is positioned 4 000 ft from the base of a rocket launching pad The angle of elevation of the camera has to change at the correct rate in order to keep the rocket in sight Also the mechanism f focusing the camera has to take into account the increasing distance from the camera to the rising rocket Let s assume the rocket rises vertically and its speed is 600 ft s when it has risen 3 000 ft a How fast in ft s is the distance from the television camera to the rocket changing at that moment ft s b If the television camera is always kept aimed at the rocket how fast in rad s is the camera s angle of elevation changing at that same moment rad s

raph of a polynomial function shows the lef ing polynomials represents the function de 1 4 x 6 3x 5 4x 4 5x 3 4x 2 2x 3

a cos B tan 3 4 b sin a b 3 2 and cos B c tan x 2 13 3r 2 B 2

5 The table shows the total weight of shrimp a fisherman catches each week Time weeks Weight pounds 2 3 5 6 110 170 500 530 What is the average rate of change from Week 2 to 5 in pounds per week

Use transformations of the graph of f x x2 to determine the graph of the given function h x x 5 2