# Posts by randy

Total # Posts: 416

**Physics**

At an instant when a soccer ball is in contact with the foot of the player kicking it, the horizontal or x component of the ball's acceleration is 940 m/s2 and the vertical or y component of its acceleration is 710 m/s2. The ball's mass is 0.35 kg. What is the ...

**Physics**

Two horizontal forces, F1-> and F2-> , are acting on a box, but only F1->is shown in the drawing. F2-> can point either to the right or to the left. The box moves only along the x axis. There is no friction between the box and the surface. Suppose that F1-> = +8...

**physics**

A tiger can run at approximately 100 km/hr (27.7 m/s) and a zebra at 80 km/hr (22.2 m/s). If both animals are running at full speed, with the zebra 70.0 m ahead, how long before the tiger catches its prey? a) 12.6 s b) 25.2 s c) 6.30 s d) 10.7 s

**math**

If pump A and pump B work together, they can fill a pool in 4 hours. Pump A, working alone, takes 6 hours to fill the pool. How long would it take pump B, working alone, to fill the pool?

**SCIENCE**

how do we derive the formula at=vf-vi if we will find acceleration? please have it step by step. Thank you

**Science**

Please complete the formula and process in arriving the answer. Please. Thank you. Nathaniel is driving his sports car down a four lane highway at 40m/s. He comes up behind a slow moving dumptruck and decides to pass it in the left hand lane. If Nathaniel can accelerate at 5m/...

**Science**

Nathaniel is driving his sports car down a four lane highway at 40m/s. He comes up behind a slow moving dumptruck and decides to pass it in the left hand lane. If Nathaniel can accelerate at 5m/s^2, how long will it take for him to reach the speed of 60m/s?

**Physics**

A dog is tugging forward on a leas held by a physics student who is standing still. The dog is tugging with a force of 63N. The student estimates the leash to be at an angle of 25 degrees above the ground. What is the tension in the leash?

**Math**

1) Solve equation 3r+5 _____ + 2 = 2r to find the value of r? 2 A. 2 1/7 B. 3 2/3 C. 15 D. 10 2) which is these is a rational number. A. Sq root of 14 B. -sq root of 9 C. -sq root of 34 D. Sq root of 72

**Math**

1) what is the length of the diagonal of a square whose sides are 3 inches long. A. 9 inches B. 3 square root 2 inches**** C. 6 inches D. 18 inches 2) which set of measure could be the side lengths of a right triangle? A. 0.9 cm, 1.2 cm, 1.5 cm B. 4 in, 4 in, 4 in C. 7 m, 8m, ...

**Algebra**

I am confused, why did you not count the page one? Can you explain?

**Algebra**

- There are less than 40 members of the Landowners Association. These memebers vote on various proposals. All the members were present at a meeting and all voted on each of two proposals. On the first proposal 4 times as many memebers voted yes to those who voted no, On the ...

**Algebra**

Thank you!!

**Algebra**

A car rental company charges $24 per day plus $0.75 per mile driven. a) Let C = total cost; D = number of days and M = number of miles b) Write the equation for the total cost in terms of C, D and M c) Use the equation to determine the total cost for a customer who rented the ...

**math**

how many terms are there on a 1/2 (a+b)? and are they monomial or binomial?

**Chemistry**

Unfortunately i knew the answer to the ones you posted,i just don't know how i can answer the heat capacity one..

**Chemistry**

Help with lab report Need Help finishing my lab report.KNOWN VALUES ARE V OF HCL=50ML,M=2.188.V OF NAOH=55.3ML,M=2.088.INTIAL TEMP FOR HCL=22.5C,NAOH IS 23C.this is for part A: Mass of final NACL solution assuming that the density of a 1 M Nacl solution is 1.04 g/ml? Heat ...

**ECON 4346**

4-The three fundamental economic questions of what, how, and for whom: a-exist because of scarcity. b-are much more serious in a socialist system. c-are not serious in a capitalistic system. d-are not relevant in the industrialized world of today. 5-When the market price is ...

**math**

evaluate the following expression _(5)P_0=

**Math**

how do you prove the quadratic equation?

**algebra**

AKI'S bicycyle designs has determined that when x hundreds bicycles are built the average cost per bike is given C(x)=0.1x^2-1.4x+10.766. Where C(x)is in hundreds of dollars. How many bicycles should the shop build to minimize the average cost per bicycle. The shop should ...

**algebra**

can someone help solve square root problem. 3+(z-13 - (z+2 help plz.

**algesebra**

Darla is buildig a new desk. To make sure she made a square corner, she measures 3ft. from the corner along one edge and 4ft. from the corner along the other edge. How long should the diagonal be between those two points if the corner is a right angle? round to nearest ...

**Homework test**

An artifact was found and tested for its carbon-14 content. If 70% of the original carbon-14 was still present, what is its probable age (to the nearest 100 years)? Use that carbon-14 has a half-life of 5,730 years.

**math**

A pie plate has a diameter of 22 cm. How much counter space is needed to display 8 pies?

**algebra**

can someone plz show the steps to solving equation. i believe the answer is 36. (6^5)/(6^3)

**Math**

Suppose the modified quota is 6.47. Fill in the blanks, and round your answers to two decimal places. (a) Find the lower quota. (b) Find the upper quota. (c) Find the arithmetic mean of the lower and upper quotas. (d) Find the geometric mean of the lower and upper quotas. (e) ...

**algebra**

multiply and simplify by factoring. Assume that all expressions under the radicals represent nonnegative numbers. ^4 sq. rt. (810x^8y10)= show steps if possible.

**algebra**

sqrt(10a) + 5 sq. rt. (250a^2) add and sinplify

**algebra**

radicals multiply and simplify by factoring ____ ______ ^3|y^7* ^3|16y^8 unsure how to do root square sign.

**algebra**

Hat sizes determined by measuring the circumference of one's head in either inches or centimeters. Use ratio and proportion to complete the following table. Hat size Head circumference Head circ 71/4 to nearest 1/5 in. near cm.

**algebra**

A sample of 134 firecrackers contained 6 duds. How many duds would you expect in a sample of 2,546?

**algebra**

Jack usually mows his lawn in 4hrs Marilyn can mow the same yard in 3hrs. how much time it would take for them to mow the lawn together.

**algebra**

There are approximately 4lbs of muscle for every 7lbs of body weight of a certain animal, how much of the weight is muscle?

**algebra**

Find the variation constant and a equation of variation where y varies inversely as x and y=1 when x=15

**algebra**

simplify z-2/z-4 - z+1/z+4 + z-20/z^2-16

**algebra**

t^3+6t^2+9t,t^2-6t find Lcm

**algebra**

find Lcm of y^2-36 and y^2+14y+48

**algebra**

subtract, simplfy by removing a factor of 1 when possible. 19dc/d^2-c^2 - d-c/d+c

**ALGEBRA**

What is the probability of getting a license plate that has a repeated letter or digit if you live in a state that has one numeral followed by two letters followed by four numerals? (Round to the nearest whole percent.)

**ALGEBRA**

A history teacher gives a 20 question T-F exam. In how many different ways can the test be answered if the possible answers are T or F, or possibly to leave the answer blank?

**ALGEBRA**

What are the odds in favor of drawing face card from an ordinary deck of cards? to

**ALGEBRA**

What is the probability of getting a license plate that has a repeated letter or digit if you live in a state that has one numeral followed by two letters followed by four numerals? (Round to the nearest whole percent.)

**ALGEBRA**

Make a 5% offer on a Volkswagen New Beetle that has a sticker price of $22,120 and a dealer cost of $20,862. (Round your answer to the nearest dollar.)

**ALGEBRA**

Find the amount of interest and the monthly payment for the loan. Purchase a car for $42,800 at 2.4% add-on rate for 5 years. (Round your answers to the nearest cent.)

**ALGEBRA**

Calculate the monthly finance charge for the following credit card transaction. Assume that it takes 10 days for a payment to be received and recorded and that the month is 30 days long. Assume 365 days in a year. (Round your answer to the nearest cent.) $3,000 balance, 21% ...

**ALGEBRA**

If the principal P = $500, the interest I = $525, and time t = 7 years, find the following. (a) What is the rate? % (b) What is the future value?

**ALGEBRA**

Convert the following credit card rate to the APR. Nebraska, 0.02192% daily rate. (Round your answer to the nearest whole number.)

**ALGEBRA**

Let U = {17, 18, 19, 20, 21, 22, 23}, B = {17, 20, 21, 23}, and C = {19, 20, 22, 23}. List all the members of the sets. (Enter solutions from smallest to largest. If there are any unused answer boxes, enter NONE in the last boxes.) B = C =

**math**

train A and train B traveling same direction. train A passes station 9:20, train B passes station 9:32, when will train B catch train A

**math**

y=1777x+27,153 number of y guns after 2000, that is x=0 coorespod to 2000, x=3, 2003 x=4. Predict number of gun deaths in 2004, 2009 and what year of gun deaths will be in 7606.

**math**

The width of a rectangle is fixed at 18cm. what length will make the perimeter greater than 86cm the lenngth must be greater than cm.

**algebra**

x+2y=9(1) x=8-2y(2)

**algebra**

evaluate z+y/9 for z=74 and y=16

**chemistry**

calculate the volume of 2.27 M Nal that would be needed to precipitate all the of the Hg +2ion from 166mL of a 2.08 M Hg(NO3)2 The equation for the reaction is 2 Nal(aq) + Hg(NO3)2(aq) > HgI2(s) + 2 NaNO3(aq) Please Help I'm really having trouble understanding organic ...

**chemistry**

calculate the molarity of an acetic acid solution if 83.71 mL of the solutions needed to neutralize103 mL of 1.08 M sodium hydroxide. the equation for the reaction is. HC2H3O2(aq) + NaOH(aq) >Na+(aq) + C2H3)2(aq) +H2O(aq) Please show your work i really don't understand ...

**chemistry**

how many grams of NaOH would be needed to make 896mL of a 139 M solution

**chemistry**

how many moles of sodium chloride are in 937 mL of a 1.88 M solution of sodium chloride?

**chemistry**

calculate the molarity of an acetic acid solution if 39.96 mL of the solution is needed to neutralize 136mL of 1.41 M sodium hydroxide. the equation for the reaction is HC2H3O2(aq) + NaOH(aq) > Na+(aq) + C2H3O2(aq) +H2O(aq)

**chemistry**

calculate the molarity of an acetic acid solution if 39.96 mL of the solution is needed to neutralize 136mL of 1.41 M sodium hydroxide. the equation for the reaction is HC2H3O2(aq) + NaOH(aq) > Na+(aq) + C2H3O2(aq) +H2O(aq)

**chemistry**

a salt solution is evaporated to dryness. If 25.7 g of the solution leaves 1,949 mg of dry salt, what is the percent concentration (w/w) of the salt in the solution

**Chemistry**

the heat of fusion water is 335J/g,the heat of vaporization of water is 2.26kJ/g, the specific heat of water is 4.184J/deg/g. how many grams of ice at 0 degrees could be converted to steam at 100 degrees C by 9,574J

**Ashford University**

6 Heavy industry

**Ashford University**

1 Assassination

**ALGEBRA**

Find three ordered pairs that satisfy the equation. y = 5 x + 8

**ALGEBRA**

Fill in the blanks. (Round your answers to the nearest dollar.) Interest Principal Rate Time Future Value $437 $ 5% 8 yr $

**ALGEBRA**

If the principal P = $700, the interest I = $504, and time t = 6 years, find the following. (a) What is the rate? % (b) What is the future value?

**ALGEBRA**

If the principal P = $500, the rate r = 5 1 2 %, and time t = 1 year, find the following. (a) What is the amount of interest? $ Incorrect: Your answer is incorrect. (b) What is the future value?

**ALGEBRA**

Consider the following expression. \(x + 2 y - 2 z\) - (x - 2 y + 2 z) (a) Simplify the expression.

**ALGEBRA**

Solve the system. $ \left\{ \begin{tabular}{l} $ y = x + {\color{red}-3} $ \\ $ y = -{\color{red}2} x + {\color{red}9} $ \end{tabular} \right. $ x = y =

**ALGEBRA**

Solve the equations by finding the exact solution. (a) (1)/(3) x - 1 = 1 x = (b) (1)/(3) log\(x\) - log\(10\) = 1

**ALGEBRA**

A seismograph 300 km from the epicenter of an earthquake recorded a maximum amplitude of 5.5 multiplied by 102 µm. Find this earthquake's magnitude on the Richter scale. (Round your answer to the nearest tenth.) M =

**ALGEBRA**

If possible, completely factor the expression. (If the polynomial is not factorable using integers, enter PRIME.) x^2+9 x+20

**ALGEBRA**

Graph the following first-degree inequality in two unknowns. $$ y > {\color{red}2} x - {\color{red}2} $$

**ALGEBRA**

Find the functional values requested in the problem. h(x)=3 x-1 (a) h(0) = (b) h(-7) =

**ALGEBRA**

Solve the exponential equation. Give the exact value for x. (Express all logarithmic functions in terms of ln(x) in your answer.) text((a) ) e^x = 10 x = text((b) ) e^x = 2.0 x = text((c) ) e^x = 37.9 x =

**ALGEBRA**

Graph the equation. x = -6

**ALGEBRA**

(log\(A\))/(log\(B\)) = (ln\(A\))/(ln\(B\)) (log_b\(A\))/(log_b\(B\))=log_b\((A)/(B)\) text(In )log_b\(N\), text( the exponent is )N. text(If ) log_1.5\(8\)=x, text( then ) x**(1.5) =8. log\(500\) text( is the exponent on ) 10 text( that gives ) 500.

**ALGEBRA**

The product of two consecutive positive even numbers is 528. What are the numbers? (Enter solutions from smallest to largest.) and

**ALGEBRA**

Solve the inequality. (Enter INFINITY for infinity and -INFINITY for -infinity as needed.) 6<=5 - y

**ALGEBRA**

Solve the equation. (Enter solutions from smallest to largest. If there is no solution, enter NONE in the answer boxes.) x2 - 5x + 5 = 0 x = x =

**ALGEBRA**

Write the expression in terms of common logarithms, and then give a calculator approximation (correct to four decimal places). log_(7) \(80\)

**ALGEBRA**

Contract the expressions. That is, use the properties of logarithms to write each expression as a single logarithm with a coefficient of 1. text((a) ) ln\(3\)-2ln\(4\)+ln\(8\) text((b) )ln\(3\)-2ln\(4+8\) text((c) )ln\(3\)-2(ln\(4\)+ln\(8\))

**ALGEBRA**

Use the definition of logarithm to simplify each expression. text((a) )log_(3b) \(3b\) text((b) )log_(4b) \((4b)^6\) text((c) )log_(7b) \((7b)^(-11)\)

**ALGEBRA**

The velocity v (in feet per second) of a rock dropped into a well is related to time (in seconds) by the formula v = 32t. What is the velocity of the rock at the indicated instant? Write your answer in the form (t, v). (a) when the rock is released ( , ) (b) after 9 seconds

**chemistry**

the heat of fusion water is335 J/g. The heat of evaporization of water is 2.26 kJ/g, the specific heat of ice is 2.05 J/Deg/g, the specific heat of steam is 2.08 J/deg/g and the specific heat of liquid water is 4.184 J/deg/g. How much heat would be needed to convert 12.09 g of...

**chemistry**

the heat of fusion of water is 335 J/g. How much heat would be required to melt 97.8 g of ice

**chemistry**

the heat of vaporizaton of water is 2.26kJ/g. How much heat is needed to change 4.2 g of water to steam.

**chemistry**

the heat of vaporization of water is 2.26kJ/g. how much heat is needed to change 2.55 g of water to steam?

**Chemistry**

What mass of ammonia is produced when 1.73 L of nitrogen (STP)react completely in the following equation? N2 + H3 > 2NH3

**Chemistry**

what volume of ammonia gas will be produced when 8.01 L of hydrogen react completely in the following equation. N2 + 3H2 > 2NH3 this stuff is so confusing because one little word seems to change the entire process for solving.

**Chemistry**

what volume of ammonia gas will be produced when 1.26L of nitrogen react completely in the following equation? N2 + 3H2 > 2NH3 Please if someone can just give me the order of operation it will be much appreciated because chemistry is just not my forte.

**Chemistry**

What mass of oxygen is consumed when 1.73L of carbon dioxide (STP) are produced in the following equation. C4H8 + 6 O2 > 4 CO2 + 4 H2O please help and show your work. My answer for this problem is 11.12g/O2. I have no confidence in my answer.

**Chemistry**

What volume of carbon monoxide gas (at STP) is needed when 1.35 Moles of oxygen gas react completely in the following equation. 2CO + O2 > 2CO2 please show your work I'm having trouble with Gas Stoichiometry.

**ALGEBRA**

3x2 = 17x + 6

**ALGEBRA**

Solve the equations. ((a) ) (2 L)/(5) = 2 L = ((b) ) 4 = (4 M)/4 + 8 M =

**ALGEBRA**

Consider the following expression. 3(x - 2) - 9(x**2 + 7 x + 4) - 5(x + 8) (a) Simplify the expression.

**ALGEBRA**

The Greek God Zeus ordered his blacksmith Hephaestus to create a perpetual water-making machine to fill Zeus' mighty chalice. The volume of Zeus' chalice was reported to hold about one hundred and fifty sextillion gallons (that is a fifteen followed by twenty-two zeros...

**ALGEBRA**

Evaluate the given expressions (to two decimal places). (a) ) log((23.0) (b) ) log_(2) \(128\) (c) ) log_(9) \(1\)

**ALGEBRA**

Use the definition of logarithm to simplify each expression. (a) )log_(3b) \(3b\) ((b) )log_(8b) \((8b)^6\) (c) )log_(10b) \((10b)^(-13)\)