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(Solved): What is the concentration of HNO3 if 0.198 mol are pr...

What is the concentration of HNO3 if 0.198 mol are present in 905 mL of the solution?

(Solved): (6)/(18) 100% 6 13. This task is designed to give you practi...

(6)/(18)

100%

6 13. This task is designed to give you practice in checking drawings and job instructions. An apprentice was given the following instructions relating to the component shown in Figure 3 : Make a freehand isometric drawing of the component Include the related notes The apprentice produced Figure 4. Check Figure 3 against the job requirements in Figure 4, and then answer the questions on the next page. (5 marks) Key Plate Part No 356 Notes Material: Mild Steel Quantity required: 100 Job No: WD967/2

(Solved): High School Graduation Gifts A random survey of 24 couples ...

High School Graduation Gifts A random survey of 24 couples who had children graduating from high school found that they spent an average of $138.21 on graduation gifts. The standard deviation of the sample is $6.90. Find the 95% confidence interval for the mean amount of money couples spent for graduation gifts. Round intermediate calculations to three decimal places, and final answers to two decimal places.

(Solved): Wall-to- wall carpet is to be installed in the room from Que...

Wall-to- wall carpet is to be installed in the room from Question #1. The carpet costs

$2.59

per square foot, and sales tax is

7.5%

. What is the total cost of the carpet? (Round to two decimal places as usual.)

(Solved): During the year, Erickson's Furniture, Inc. issued 3,...

During the year, Erickson's Furniture, Inc. issued 3,000 shares of its

$0.50

stated value common stock for

$25

per share, and declared and paid cash dividends totaling

$0.25

per share. By what amount does contributed capital increase as a result of these events? Select one: a.

$75,000

b.

$74,250

c.

$1,500

d.

$44,250

(Solved): Submit Answel 6. [-/6 Points] PRACTICE ANOTHER An automobile...

Submit Answel 6. [-/6 Points] PRACTICE ANOTHER An automobile manufacturer sells cars in America, Europe, and Asia, charging a different price in each of the three markets. The price function for cars sold in America is

p=22-0.2x

(for

0<=x<=110

), the price function for cars sold in Europe is

q=15-0.1y

(for

0<=y<=150

), and the price function for cars sold in Asia is

r=19-0.1z

(for

0<=z<=190

), all in thousands of dollars, where

x,y

, and

z

are the numbers of cars sold in America, Europe, and Asia, respectively. The company's cost function is

C=24+4(x+y+z)

thousand dollars. (a) Find the company's profit function

P(x,y,z)

. [Hint: The profit will be revenue from America plus revenue from Europe plus revenue from Asia minus costs, where each revenue is price times quantity.]

P(x,y,z)=

(b) Find how many cars should be sold in each market to maximize profit. [Hint: Set the three partials

P_(x^('))P_(y^('))

, and

P_(z)

equal to zero and solve. Assuming that the maximum exists, it must occur at this point.] America

Europe

Asia

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(Solved): Using phasors, determine v(t) or i(t) from the following int...

Using phasors, determine

v(t)

or

i(t)

from the following integrodifferential equations: 5.1)

2(di)/(dt)+3i(t)=4cos(2t-45\deg )

5.2)

(dv)/(dt)+5v(t)+4\int vdt=20sin(4t+10\deg )

(Solved): Question 4 1 pts Indicate the position of the equilibrium fo...

Question 4 1 pts Indicate the position of the equilibrium for the following acid-base reaction: No preference Not enough information Right Left

(Solved): What is the member force of Member HI in kN ? Ay=37kN, Ly =4...

What is the member force of Member

HI

in

kN

?

Ay=37kN, Ly =45kN

IMPORTANT INSTRUCTIONS: Put your answer in the text box up to two decimal places. Only numerical values are accepted. Use conventional signs (+/-ve) for truss member forces. Tension member force is positive (+ve) and Compression member force is negative (-ve).

(Solved): Evaluate the integral. \int 4cot^(2)(x)csc^(4)(x)dx Consider...

Evaluate the integral.

\int 4cot^(2)(x)csc^(4)(x)dx

Consider the shown work.

\int 4cot^(2)(x)csc^(4)(x)dx=\int 4cot^(2)(x)(1-cot^(2)(x))csc^(2)(x)dx=\int 4(cot^(2)(x)-cot^(4)(x))csc^(2)(x)dx

Let

u=cot(x)

and

du=-csc^(2)(x)dx

.

\int 4(cot^(2)(x)-cot^(4)(x))csc^(2)(x)dx=-4\int (u^(2)-u^(4))du =-(4)/(3)u^(3)+(4)/(5)u^(5)+C =-(4)/(3)cot^(3)(x)+(4)/(5)cot^(5)(x)+C

Identify the error in the work shown. The substitution

csc^(2)(x)=1-cot^(2)(x)

is not a correct trigonometric identity. The power rule for integrals was not applied correctly. No errors exist in the work shown. When applying the substitution method, an inappropriate expression was used for

u

. The resulting integral after applying the substitution method is incorrect. Evaluate the integral.

\int 4cot^(2)(x)csc^(4)(x)dx

(Express numbers in exact form. Use symbolic notation and fractions as needed. Use

C

to represent the arbitrary constant.)

\int 4cot^(2)(x)csc^(4)(x)dx=

Question Source: Rogawski 4e Calculus Early Transcendental