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find the domain, range, turning point, and local maxima and minima for the following two polynomials: 1. 0.2x (x-23)(x-28) with the domain restricted at {0

Sodium azide, NaN3, decomposes at high temperatures to form sodium metal, Na, and nitrogen gas, N2. 255.4 grams of sodium azide is placed in a rigid, 75.0-L tank and allowed to decompose at 209.°C. How many moles of nitrogen gas could be formed from the 255.4 grams of sodium azide? moles nitrogen gas What pressure would the nitrogen gas exert in the 75.0-L tank?

C4H8(g)+6O2(g)⟶Δ4CO2(g)+4H2O(g)C4H8(????)+6O2(????)⟶Δ4CO2(????)+4H2O(????) combinationdecompositionsingle replacementdouble replacementcombustion

Issuing common stock Thomas products inc. sold 22250 shares of common stock to stockholders at the time of its incorporation. Thomas received $24.40 per share for the stock. 1. Assume that the stock has a $20 par value per share

Problem 2 (6 points) You are traveling abroad and have only American dollars with you. You are currently in the country’s capital but will soon head to a small town for an extended stay. In the town, no one takes credit cards, and they only accept the domestic currency–shillings. In the capital, you can convert dollars to shillings at a rate of two shillings per dollars. In the town, a dollar only buys 1.6 shillings. Upon your return to the capital at the end of your trip, you can convert shillings back to dollars at a rate of 2.5 shillings per dollar. You estimate that your expenditures in the town will be normally distributed with mean of 400 shillings and standard deviation of 100 shillings. How much shillings should you get before leaving the capital to minimize the expected loss due to currency exchange?

Case: Jane often has intense, short-lived relationships and fears abandonment. She experiences frequent mood swings and sometimes self-harms to cope. Which personality disorder is she most likely experiencing? Histrionic Personality Disorder Borderline Personality Disorder Narcissistic Personality Disorder Avoidant Personality Disorder

B.JT Transistors Problem 1: BJT DC Circuits. Let the NI'N B.J

have the following properties:

when BE junction is

100 and

. Let

and each has resistance value in the range of tens of

. Let

and

have resistance values in the range of a few

. 1.a Choose all the resistors so that

and

. For your convenience, assume that

and

create an "almost-voltage-divider". Then you can easily determine

and

and choose

to set the desired

spee and then set

to meet the VCen spec. Of course, don't forget to justify the Active Mode assumption and the "almost-voltage-divider" assumption. 1.b Now, change one of the

resistors (to another finite and nonzero value) to drive the BJT into Saturation Mode. Once you violate the Active Mode assumption, while still keeping the BI: junction forward biased, solve the circuit that now operates in Saturation Mode. 1.c In your design of 1.a offer a change of one of the

resistors (to another finite and nonzero value) in order to drive the BJT into Cutoff Mode. Solve the circuit in the Cutoff Mode. Problem 2: B.JT small-signal amplifier. Let the PNP BJT QP properties be

if the EB junction is

and Early vollage

. The internal resistance of the input signal source

is

. The load resistance is

. You cannot change the source resistance nor the load. Let

. Let

and let

. 2.a Find the DC voltages and currents of the amplifier, the BJT's small-signal parameters, and draw the small-signal diagram of the amplifier. Is the Active Mode assumption true? 2.b Find the amplifier's small-signal input resistance

and the small-signal voltage gain. 2.d Modify one of the resistors in order to increase the voltage gain by 20%. Hint: It would be the simplest to tweak the only resistor that has nothing to do with setting the IC current

.

Please include detailed steps. Be detailed.

Part A: Estimate the area between

and the

-axis on the interval

using 4 approximating rectangles and right endpoints. (4 points) Part B: Is this an overestimation or an underestimation of the actual area? (1 point)

Wonderland Preschool operates a not-for-profit morning preschool that operates eight months of the year. The preschool has 162 kids enrolled in its various programs. The preschool's primary expense is payroll. Teachers are paid a flat salary each of the eight months as follows: View salary data. View additional information. Requirements Prepare WonderlandPreschool's monthly operating budget. Round all amounts to the nearest dollar. Using your answer from Requirement 1, create WonderlandPreschool's budgeted income statement for the entire eightschoochyear. You may group all operating expenses together. WonderlandPreschool is a not-for-profit preschool. What might the preschool do with its projected income for the year? Requirement 1. Prepare Wonderland Preschool's monthly operating budget. Round all amounts to Wonderland Preschool Budgeted Monthly Operating Expenses Teachers' salary: 2-day program 3-day program 4-day program 5-day program Director salary Total salary expense Payroll tax expense Lease expense Fixed operating expenses Variable operating expenses Total monthly operating expenses Help me solve this Video Get more help - Additional information In addition to the salary expense, the preschool must pay federal payroll taxes (FICA taxes) in the amount of

of salary expense. The preschool leases its facilities from a local church, paying

every month it operates. Fixed operating expenses (telephone, internet access, bookkeeping services, and so forth) amount to

per month over the eight-month school year. Variable monthly expenses (over the eight-month school year) for art supplies and other miscellaneous supplies are

per child. Revenue for the entire eight-month school year from tuition, registration fees, and the lunch program is projected to be

.

Teachers of two-day program ....... $438 per month Teachers of three-day program ...... $ $642 per month Teachers of four-day program ...... $856 per month Teachers of five-day program .......

per month Preschool director's salary .........

per month WonderlandPreschool has 8two-day program teachers, 4three-day