Wednesday

April 23, 2014

April 23, 2014

Total # Posts: 215

**Algebra1**

Find the sum of the first 33 terms of the arithmetic sequence whose first term is 3 and whose 33rd term is -253.

**PRE CALC**

Evaluate: sigma notation of (3cos k(pi) +1) start value: k=0 end value: k=3

**PRE CALC**

The 20th term of an arithmetic sequence is 27 and the first term is -11. What is the common difference??

**PreCalc PLEASE HELP**

Find the common ratio, r, for the geometric sequence that has a1= 100 and a8= 25/32

**PreCalc PLEASE HELP**

Ms Farnum was hired for a new job at a salary of $62,500 and was promised a 5% raise each year. What would Ms.Farnum's salary be, to the nearest dollar, after working there for 6 years?

**PHYSICS IMPULSE MOMENTUM QUESTION**

what is a scenario in which REDUCING the time of impact would be beneficial?

**Pre-Calc Help please**

Solve for x: log base5 (4x) + log base5 (x) = log base5 (64)

**Pre Calc**

Solve the following inequality in terms of natural logarithms (ln). (e^6x)+2 is less than or equal to 3.

**Precalc**

Thank you!

**Precalc**

Solve the following equation for x in terms of ln and e. (2e^3)-6-(16e^-x)=0

**Pre-Calc**

Solve for x: log base27 (2x-1) = 4/3

**Pre-Calculus**

Solve the following inequality in terms of natural logarithms (ln). (e^6x)+2 is less than or equal to 3.

**Pre-Calculus**

Find N if log base 6 (6^7.8)=N

**History **

When was the first contact of the following first nations people of canada: First nations of the Mackenzie and Yukon River Basins Pacific coast first nations Plateau Fist Nations Plains first nations

**English **

Lord of the flies questions 1-7 Although it appears that Ralph and jack would become good friends strain is being placed on their friendship. The boys seem to be from two different world, "There was the brilliant world of hunting, tactics, fierce exhilaration, skill: and ...

**social studies**

during the early 1800s the United States tried to make peace with other countries in order to grow and develop. give an example of one of those peace efforts and briefly explain what it tried to accomplish

**science**

joey drives his car 7 kilometers north. he stops for lunch and then drives 5 kilometers south. what distance did he cover?

**physics **

a baseball is popped straight up. the ball leaves the bat moving at 37.8 m/s. at what time is the ball 20 m above the ground?

**physics. again. **

a baseball is popped straight up. the ball leaves the bat moving at 37.8 m/s. at what time after being struck is the ball moving at 10 m/s upwards? where is the baseball at this time? answer= 67.9m I need to know how to get this answer

**Physics **

a baseball is popped straight up. the ball leaves the bat moving at 37.8 m/s. to what height did the ball rise. t=7.72 s the answer is 73 m, but how do you get that answer

**physics URGENT **

3. Using conceptual meaning of g = Fg/m [N/kg], answer the following: a) What does the spring scale read on the surface of the Moon?

**Math**

The students sold children's ticket for $30 per ticket and adult tickets for $40 for a total of $930. Write an equation for the scenario and determine the x and y intercept.

**Physics **

1) what does the y intercept on a force vs acceleration graph represent? 2)what is the relationship of mass and acceleration?

**ECONOMICS/ACCOUNTING/BUSINESS**

PLS HELP, BEEN STUCK FOREVER ON TWO QUESTIONS, THIS IS ONE : There are usually no costs for the first 3 years, but thereafter maintenance is re- quired for restriping, weed control, light replacement, shoulder repairs, etc. For one section of a particular highway, these costs ...

**Finance**

A building is priced at 125,000. If a down payment of 25,000 is made and a payment of 1,000 every month thereafter is required, how many months will it take to pay for the building? Interest is charged at a rate of 9% compounded monthly.

**Finance**

Omega Instruments has budgeted $300,000 per year to pay for certain ce- ramic parts over the next 5 years. If the company expects the cost of the parts to increase uniformly according to an arith- metic gradient of $1 0,000 per year, what is it expecting the cost to be in year...

**practice question**

How do i go about solving this one? A cash flow sequence starts in year 1 at $3000 and decreases by $200 each year through year 10. (a) Determine the value of the gradient G; (b) determine the amount of cash flow in year 8; and (c) determine the value of n for the gradient. al...

**economics**

Pls Help. Not too sure how to do this question. Someone wants to set aside money for their newborn daughters college funds. He estimates she would need 25,000 on her 17, 18, 19 and 20, birthdays. If he plans to make uniform deposits starting 3 years from now and through her 16...

**Physics**

Anyone for B_0 for both cases? Problem 3) b)?

**Math**

Sarah was cutting fabric for a quilt. She cut a strip of fabric that was 19 1/8 inches long into 5 equal pieces. When she was finished cutting Sarah had a piece that was 2 1/4 inches long. How long was each piece that she cut for the quilt?

**Math**

The elevation of the surface of the Dead Sea is -424.3 meters. In 2005, the height of Mt. Everest was 8,844.33 meters. How much highernwas the summit of Mt. Everest?

**chemistry**

lewis structure of HOCH2S-

**math**

(16xy^3/-24x^4y)^-3 simplify the rational expression in the form A/B. Single fraction with only positive exponents.

**math**

*cubic square root*125h^9s^1/*cubic square root*h^-6s^-1 The expression above equals kh^rs^t where r, the exponent of h, is..? and t, the exponent of s, is...? and k, the leading coefficient is...? all answers should be rational numbers

**math**

Simplify the rational expression in the form A/B. X^-2+X^-4. Express the final result in a single fraction using positive exponents only.

**math**

multiply both sides by 2 and add them together... were you given formulas?

**math**

You can use the pythagorean theorem (c^2=a^2+b^2, where "c" is the hypotenuse and "a" and "b" are the other sides) to find the length of the other side. Manipulate it to get c^2-a^2=b^2, then take the square root of the answer to get the length of...

**Calculus**

The statement is true, because f'(x) deals with the slope of a tangent line. At any extrema (maximum or minimum point), the tangent line will be horizontal, meaning that it has a slope of 0. Since f'(x) is the slope of the tangent line, we can say that f'(x)=0 at t...

**precal**

fixed typo ((sinx + cosx)/(1 + tanx))^2 + ((sinx - cosx)/(1 - cotx))^2 = 1

**precal**

thanks :)

**precal**

please help i can't find the answer for this question. i can only manipulate one side of the equation and the end result has to equal the other side. Problem 1. ((1 + sinx)/cosx) + (cosx/(1 + sinx)) = 2secx

**chem**

Is this the correct equatioin for the reaction of cyclohexene with MnO4- ? C6H10 + MnO4- ----> C6H10(OH)2 + MnO2

**Physics Help**

I am having trouble with part b myself but for part c the only force is gravity. So F=ma =.0008kg*9.8m/s^2 =0.00784N

**English**

I'm stuck on this SAME question.

**Physics**

A skier of mass 71.0 kg is pulled up a slope by a motor-driven cable. How much work is required to pull the skier 62.2 m up a 37.0 slope (assumed to be fric- tionless) at a constant speed of 2.0 m/s? The acceleration of gravity is 9.81 m/s2 .

**chemistry**

One of the by-products of a reaction is 2-methyl-2-butene. A) Suggest a mechanistic pathway for the formation of this alkene. B) How is this by-product removed during the purification?

**science**

An average diameter of a star is approximately 1 X 10^9 m and an average diameter of a galaxy is 1 X 10^21 m. Considering the given data, apply a sense of scale calculation to determine if when a galaxy’s diameter is scaled down to the length of Manhattan (21.6 km long), ...

**science**

An average diameter of a star is approximately 109 m and an average diameter of a galaxy is 1021 m. Considering the given data, apply a sense of scale calculation to determine if when a galaxy’s diameter is scaled down to the length of Manhattan (21.6 km long), would the ...

**calculus**

Follow this link please! It is an interactive question that I just cannot figure out webwork.math.nau.edu/webwork2/CFisher_136/Continuity/3/?user=aed73&effectiveUser=aed73&key=KwyySMKGHvKe32dogu0ViC6rI90u7iI9&displayMode=jsMath&showOldAnswers=1

**calculus**

thank you! I actually figuredit out right after I submitted this lol

**calculus**

For what value of the constant c is the function f continuous on the interval negative infinity to positive infinity? f(x)={cx2+7x if x<2 x3−cx if x> or =2

**calculus**

For what value of the constant c is the function f continuous on the interval negative infinity to positive infinity? f(x)={cx2+7x if x<2 x3−cx x2 x2

**medical billing and coding**

which of the following is an expanded option for participation in private health care plans? A-medicare part A. B-Medicare part B. C- medicare advantage or D- medigap

**physics**

The physics of electric potential energy at one corner of a triangle. Two charges, q1 = +5.0 ìC and q2 = -2.0 ìC are 0.50 m apart. A third charge, q3 = +6.0 ìC is brought from infinity to a spot 0.50 m from both charges so that the three charges form an eq...

**physics**

The physics of an electron moving from one plate to another. An electron acquires 4.2 x 10-16 J of kinetic energy when it is accelerated by an electric field from Plate A to Plate B. What is the potential difference between the plates, and which plate is at a higher potential?

**physics**

The physics of an electron falling through a potential difference. How much kinetic energy will an electron gain (joules) if it falls through a potential difference of 350 V?

**physics**

The physics of moving a small charge through a potential difference. How much work is needed to move a -8.0 ìC charge from ground to a point whose potential is +75 V?

**physics**

The physics of electric field between two charges. What is the magnitude and direction of the electric field at a point midway between a -8.0 ìC charge and a +6.0 ìC charge? The -8.0 ìC charge is 4.0 cm to the left of the +6.0 ìC charge. If a charge...

**physics**

The physics of the DNA molecule. The two strands of the DNA molecule are held together by electrostatic forces. There are four bases which make up the DNA molecule, thymine (T), adenine (A), cytosine (C), and guanine (G). In two of the bases, thymine and adenine, an oxide ion ...

**math**

of the 900 students 585 went to college what percent is that? a)150% b)65% c)90% d)58.5%

**english**

THE second one.

**physics**

One of the moons of Jupiter is Io. The distance between the centre of Jupiter and the centre of Io is 4.22 x 10^8 m. If the force of gravitational attraction between Io and Jupiter is 6.35 x 10^22 N, what must be the mass of Io?

**physics**

The physics of satellite motion around Jupiter. A satellite of mass 2.00 x 104 kg is placed in orbit 6.00 x 105 m above the surface of Jupiter. Please refer to the data table for planetary motion included in this lesson. a) Determine the force of gravitational attraction betwe...

**physics**

The physics of energy and Earth's moon as a satellite. The moon is an Earth satellite of mass 7.35 x 10^22 kg, whose average distance from the centre of Earth is 3.85 x 10^8 m. a) What is the gravitational potential energy of the moon with respect to Earth? b) What is the ...

**physics**

The physics of gravity and satellite motion around Jupiter. A satellite of mass 2.00 x 104 kg is placed in orbit around Jupiter. The mass of Jupiter is 1.90 x 1027 kg. The distance between the satellite and the centre of Jupiter is 7.24 x 107 m. a) Determine the force of gravi...

**physics**

The physics of orbital radius and orbital period of a planet. If a small planet were discovered whose orbital period was twice that of Earth, how many times farther from the sun would this planet be?

**physics**

A roller coaster of mass 1000.0 kg passes point A with a speed of 1.80 m/s? point a= 30m point b= 0m point c= 25m point d= 12m 1. What is the total mechanical energy of the roller coaster at point A? 2. What is the speed of the roller coaster at point B? 3. What is the potenti...

**physics**

The physics of a golf ball and kinetic energy. When a 0.045 kg golf ball takes off after being hit, its speed is 41 m/s. a) What is the kinetic energy of the ball after it has been hit? b) How much work is done on the ball by the club? c) Assume that the force of the club acts...

**physics**

1. The physics of Mars and its two moons. Mars has two moons, Phobos and Deimos (Fear and Panic, the companions of Mars, the god of war). Deimos has a period of 30 h, 18 min and a mean distance from the centre of Mars of 2.3 x 104 km. If the period of Phobos is 7 h, 39 min, wh...

**English**

dont say im ancient im just old

**English 101**

I forgot to mention what questions I need to answer. 1. With what kind of couples is the speaker comparing himself and his partner. What is his hypothesis about why they are different? 2. There are other smaller comparisons that appear in the poem. What are they and what to th...

**English 101**

I am pretty good at writing papers, but poetry is my weakness. I have to read "For C" by Richard Wilbur and I am having the hardest time analyzing it. Please help me!

**chemistry**

A 10.00g sample of a mixture of CH4 and C2H4react with O2 at 25C and 1 atm to produce CO2 and water. If the reaction produces 520kJ of heat what is the mass percent of CH4 in the mixture? I don't want the answer just how to o

**chemistry**

A 10.00g sample of a mixture of CH4 and C2H4react with O2

**spanish**

what are you wearing tonight?

**math formula?**

Mary would like to save $10 000 at the end of 5 years for a future down payment on a car. How much should she deposit at the end of each week in a savings account that pays 12%/a, compounded monthly, to meet her goal? d. Determine the weekly deposit without technology. Can som...

**math**

3. Find the exact value of the following, show all work. a. sin^2 (75^0)/sin45, cos^2, 30^0 b. tan(135) + sin(30)cot(120)

**physics**

A 7.6 kg chair is pushed across a frictionless floor with a force of 42 N that is applied at an angle of 22° downward from the horizontal. What is the magnitude of the acceleration of the chair?

**physics**

A giant excavator (used in road construction) can apply a maximum vertical force of 2.25×105 N. If it can vertically accelerate a load of dirt at 0.200 m/s2, what is the mass of that load? Ignore the mass of the excavator itself.

**physics**

A giant excavator (used in road construction) can apply a maximum vertical force of 2.25×105 N. If it can vertically accelerate a load of dirt at 0.200 m/s2, what is the mass of that load? Ignore the mass of the excavator itself.

**physics**

In moving a standard computer mouse, a user applies a horizontal force of 6.00×10−2 N. The mouse has a mass of 125 g. (a) What is the acceleration of the mouse? Ignore forces like friction that oppose its motion. (b) Assuming it starts from rest, what is its speed ...

**college**

Hi, I just want to make sure I am doing this assignment correctly.The question is: How are medical coding, physician, and payer fees related to the compliance process? I believe that they are related because the medical coding specialist is required to know what the patient...

**college**

Hi, I just want to make sure I am doing this assignment correctly.The question is: How are medical coding, physician, and payer fees related to the compliance process? I believe that they are related because the medical coding specialist is required to know what the patient...

**Math**

Paul needs 2 1/4 yards of fabric to make a tablecloth. How many tablecloths can he make from 18 1/2 yards of fabric

**Math**

45 is 93% of x round to the nearest tenth where necessary.

**Math**

Yes so should the final answer be 6 or?

**Math**

round to the nearest tenth if necessary 6 is 98% of x

**Math **

6 is 98% of x which is 6.122448979 and I have to round to the nearest whole amount where necessary

**Pre-Algebra**

40,571 is x % of 76,550

**math**

-25/30, -10/30, -9/30, 20/30?

**math**

haha nvm!! :)

**math**

The birth weight of childeren were 7 pounds 2 ounces, 6 pounds 10 ounces, 8 pounds 5 ounces, 7 pounds 9 ounces. Luis estiamted the total weight of the babies at birth was 30 pounds. Which best describes his estimate? A. More than the actual weight because he rounded to the nea...

**math**

thank you!! :) can you answer my math correct or no question that I posted?

**math**

Houston - 2.01*

**math**

Most populated U.S cities City Population(millions) New york - 8.10 Los Angeles - 3.85 Chicago - 2.86 Houston - 2 01 Between which two cities was the difference in population about 800,000 people? A. Chicago and Los Angeles B. New york and Los Angeles C. Chicago and Houston D....

**math**

A train travels at rate of 40 miles per hour for 3 hours. The train enigineer wants to make a trip back in 2 1/2 hours. Which equation can be used for r , the rate the train has to travel on the trip back? A. r= 40 x 3/2.5 B. r= 40 x 3 x 2.5 C. r= 40 x 2.5/3 D. r= 40 x 2.5

**math**

Tami is cutting an 8 1/2 inch wide piece of paper in strips for an art project. How many 1/2 inch strips can she cut?

**math**

A book is 1 3/4 inches thick. There are 8 copies of the same book stacked in a bookstore. How tall is the stack in inches?

**math**

A book is 1 3/4 inches thick. There are 8 copies of the same book stacked in a bookstore. How tall is the stack in inches?

**math**

Maureen forgets to turn a faucet off. After a minute, 1.5 gallons of water comes out of the faucet. Which equation can bw used to find the number of gallons, g, that comes out of the faucet after 2 hours? A. g= 1.5 x 1/30 B. g=1.5 x 1/120 C. g=1.5 x 120 D. g= 1.5 x 604