Complex numbers Questions and Answers

x ly 3 Step 2 of 2 Find the domain and range of the inverse Express your answer in interval notation Answer Domain Range

s 5 1 6 4 a Question 7 of 10 b 16 KA3 drywall screw is countersunk i e screwed until it is below the surface of the drywall by ceiling joist a How much of the screw extends into the joist b How much of the screw is within the drywall Type an integer fraction or mixed number Type an integer fraction or mixed number This question 1 point s possible SIXO Submit quiz 5 to fasten a sheet of drywall to the 8

Consider the following relation Prev a Answer 1 Point Step 2 of 2 Determine if the relation is a function If it is not identify two ordered pairs as proof Selecting an option will display any text boxes needed to complete your answer Function Enable Zoom Pan O yes no

The water company has a different monthly on water used in hundreds of cubic feet HCF as shown below Cost in dollars t 214 104 Residential Plan Business Plan Monthly water usage in HCF a If the monthly water usage is 18 HCF which plan costs less Residential Plan Business Plan How much less does it cost than the other plan b For what amount of monthly water usage do the plans cost the same monthly water usage is more than this amount which plan costs more S

Find the other zeros of f x x 2x 4x 8 given that 2i is one of the zeros of the polynomial zeros Write the factored form of the polynomial f x

Answer 4 Points Show Work i BIUI Upload W x x 4x W has an inverse function O W does NOT have an inverse function JE BE HE HE 99 Styles Format

The gas mileage m x in mpg for a certain vehicle can be approximated by m x 0 032x 2 597x 35 027 where x is the speed of the vehicle in mph Part 0 2 Part 1 of 2 a Determine the speed at which the car gets its maximum mileage Round your answer to the nearest mph The gas mileage is at a maximum when the car travels at mph

MY NOTES couple bought some stock for 20 per share that pays an annual dividend of 1 20 per share After 2 years the price of the stock was 22 a What is the return on investment b Find the simple interest rate on the growth of their investment A

6x 2y 10 U x 2y 5 Find the corners Select all that apply 0 2 0 5 0 6 1 2 1 3 2 1 3 1 2x 6y 12 5 0 60 6x 2y 10 x 2y 5 2x 6y 12

Pace Shirt Cobalt Peppermayo US 3x 12y 180 2x y 50 Find the corners Select all that apply 0 0 0 10 0 15 0 20 0 25 10 0 15 0 20 0 25 0 10 20 1520 W WebAssign 9 ch 3x 12y 180 2x y 50

Function Machine 2x y output input If 5 is inputted into the function machine what will the output be

Find an equation of the plane passing through the given points 2 1 10 4 3 4 1 1 9

2005 1 2006 2005 2004 2005 i leminin sonucu ka t r A 5 B 4 1 2006 C 3 D 2 E

Solve the given polynomial equation Use the Rational Zero Theorem and Descartes s Rule of Signs as an aid in obtaining the first root 2x 17x 11x 1 0 GETTIN The solution set is Use commas to separate answers Type integers or fractions Type exact answers using radicals as needed

0 1 pt 2 Details Find the quotient and remainder using synthetic x 10x 4 148x 27 division The quotient is The remainder is x 6

0 1 pt 2 Details Find all zeros of the function f x 12x 83x 125x 50 Enter the zeros separated by commas

Fill in the info below and graph on your own paper Then graph the parabola on the axes below by first clicking on the vertex and then on another point close to the vertex that fits on the axes You may not be able to click on an x or y intercept y x 6x 8 1 State whether the parabola opens up or down Down Up 2 State the vertex as an ordered pair 3 State the y intercept as an ordered pair 4 Write the Equation of the Axis of Symmetry 5 Click on the vertex and then another point of the parabola that fits on the axes below 10 9 8 7 6 5 4 3 2 1 10 9 8 7 6 5 4 3 2 1 1 2 3 4 5 6

0 1 pt 2 Details An evil supervillian has launched a satelite from his her secret base The satelite s height in meters above sea level as a function of time t in seconds is given by h t 4 9t 77t 240 Find the time it takes for the satelite to reach it s maximum height Round your answer to three decimal places seconds What is the maximum height Round your answer to throo docimal places

0 1 pt 2 Details 5 4 to 3 2 7 2 co 4 5 What is the least possible degree of the polynomial

Find a polynomial of least possible degree having the graph shown 0 1 10 E f x Type your answer in factored form

Solve the inequality Write the solution set in interval notation x 4 4x 7 5x 2 0 Select the correct choice below and if necessary fill in the answer box to complete you choice OA The solution set is Simplify your answer Type your answer in interval notation Use integers or fractions for any numbers in the expression OB The solution is the empty set

Solve the quadratic inequality Give the solution set in interval nota x 30 x Select the correct choice below and if necessary fill in the answer box to complete your choice O A The solution set is the single point Type an integer or a simplified fraction OB The solution set is Type your answer in interval notation Use integers or fractions for any numbers in the expression OC The solution set is

f x X 2 X 1 Choose the correct graph OA OB 10 1000 inte X 110 MOND A JARACA AMATE hans X 110 ME PERCAL S TECH O C Ay 10 and d ved C PA Bodys Prepare www Te TO O D Ay X 10

Describe the end behavior of the graph of the polynomial function f x 4x6 5x4 x 2 Choose the correct answer below O A C U OB O D S

Find a polynomial function f x of degree 3 with real coefficients that satisfies the following conditions Zero of 0 and zero of 1 having multiplicity 2 f 2 10 The polynomial function is f x Simplify your answer

3 pts From a point on level ground 90 feet from the base of a building the angle of elevation to the top is 38 7 Approximat he height of the building to the nearest foot Show work and all steps

1 point C a 6 b 36 c 8 5 A 7 5 What is the length of d 51 What is the length of B 45 b d B cm cm

In a city there were 500 reported cases of theft last year This year the number of reported theft cases increased to 600 What is the percentage increase in the number of reported theft cases

Find the future value of an annuity which has deposits for 150 per month for 15 years at 10 compounded monthly Round your answer to the nearest cent How much of the future value amount is interest state as a dollar amount rounded to the nearest cent 1 point will be deducted for missing dollar signs Upload your work to receive credit

Simplify sec t csc t to a single trig function with no fractions

43 As a newborn in 1928 Rose s grandparents gave her 1000 in a savings account with a simple interest rate of 6 per year As Rose aged her gift grew and she withdrew the money so she could transfer it to her sister The growth of this account can be modeled by the equation y 1000 1 06 where y is the value of the account and is the number of years Which of the following dollar amounts is reasonable given the 24 bounds of the parameter O 6 250 000 O 3 490 000 O 206 173 000 O 59 000 O There is no limit to the value of the account EN English United States

Ifv 21 53 and w 81 20j find projv Then decompose v into two vectors v and v where v is parallel to w and v is orthogonal to w projwv Simplify your answer Use integers or fractions for any numbers in the expression Type your answer in terms of i and

41 Find the sum of the arithmetic series if an 70 n 12 and d 7 S12 OS12 1311 S12 1302 OS12 1305 S12 1315 None of these are correct

Form a polynomial whose zeros and degree are given Zeros 1 1 9 degree 3 Type a polynomial with integer coefficients and a leading coefficient of 1 in the box be f x Simplify your answer

Find an equation for the ellipse Graph the equation foci at 6 0 y intercepts are 3 Type the left side of the equation of the ellipse

16 Solve the equation 3 16x 4 12 24 O x 4 O x 13 0 x 8 x 6 O None of these answers are correct

13 Express y 2x 3 16 in standard form Oy 4x 76x 361 Oy 4x 76x 361 Oy 4x 12x 25 Oy 4x 12x

11 Find the inverse of the function f x x 4 O 2 4 O 4 x 4 O x 4

5 Two buildings of equal height are 40 m apart At a point on the horizontal line joining the buildings bases the angles of elevation of the tops of the buildings are 47 and 28 Show that the height h of the buildings is given 40 tan 47 tan 28 by h tan 47 tan 28

Find the exact value of cos a 3 of cos 4 O A OB O C b 2 radians C 2 d

Use a calculator to find the mean and standard deviation of the data Round to the nearest tent 755 434 959 667 381 685 360 925 574 103 946 653 mean 620 2 C standard deviation 253 1 b mean 660 standard deviation 253 1 O A OB O C mean 620 2 standard deviation 64057 6 d mean 660 standard deviation 64057 6

Consider the following system of inequalities y 2x y 0 52 4 a Enter a solution x y to the system x y b Enter a point x y that makes both of the inequalities in the system x y 5 333334 5 333334 2 6667 2 2 5 333334

Find the exact value if any of the following composite function If there is no value say it is not defined Do not use a calculator tan 1 tan 13 2

Factor the polynomial x 6x 8 x 6x 8 X

ind two vectors in opposite directions that are orthogonal to the vector u The answers are not unique U

Factor 3x 24 4xy 32y 3x 24 4xy 32y Type a factored expression

4x 7y 4x 7y Expand the binomial and fully simplify each term

WC is X Rew 3 C Aw R Altitude 12x 12

a Express 1 3 2x 1 x in the form b Solve the differential equation dy dx where y 0 when x 0 A 3 2x B C 1 x 1 x 2 y 32x 1 x

Simplify each number by using the imaginary number i 8 V 4 9 V 7 10 V 15 ona 11 V 81