Monday

January 16, 2017
Total # Posts: 1,173

**Math (6th grade)**

How do I find the answer to 234 divided by 89 + 53 x 72

*January 11, 2017*

**precalculus**

show the correct notation for “The limit of x^2 - 1 as x approaches 3.

*December 21, 2016*

**precalculus**

Show an example where For n odd, the sign of the y-ters differ: (+) for the first expansion, (-) for the second. (For n even, the signs are the same.)

*December 17, 2016*

**precalculus**

Can you give an example as to how The expansion of (x + y)n and (x - y)n are different?

*December 17, 2016*

**precalculus**

How is the expansion of (x + y)n different to the expansion of (x - y)n ?

*December 17, 2016*

**precalculus**

How do you form the the rows of Pascal’s triangle?

*December 17, 2016*

**precalculus**

can you check my answer? Find the coefficient of the term a6b3 in the binomial expansion of the expression (a - 4b)9. ________________________________________ 5,376 344,064 -5,376 -344,064 answer: b

*December 16, 2016*

**precalculus**

Can you check my answers? 1.Find the 5th term in the expansion of the binomial. (2x - 4)8 -458,752x3 286,720x4 458,752x3 35,840x4 answer: d 2.Find the 3rd term in the expansion of the binomial. (x - 2y)12 264x10y2 1760x9y3 -264x10y2 -1760x9y3 answer:a

*December 16, 2016*

**precalculus**

Can you check my answers? 1.Use the Binomial Theorem to expand and simplify the expression. (2 - 3x)3 -27x3 + 104x2 - 36x + 8 -27x3 + 54x2 - 36x + 8 -27x3 + 8 -27x3 + 54x2 - 18x + 8 answer:b 2.Find the 5th term in the expansion of the binomial. (2x - 4)8 -458,752x3 286,720x4 ...

*December 16, 2016*

**precalculus**

can you check my answers? 1.Find the binomial coefficient. 12C3 1320 17740800 48 220 answer:d 2.Find the binomial coefficient. (10/7) 720 120 240 172800 answer:b 3.Which of the following is equivalent to 10C6? 6C10 16C10 10C4 10C10 answer:c

*December 16, 2016*

**precalculus**

How would you describe a proof by mathematical induction?

*December 16, 2016*

**precalculus**

Is my answer correct? Which of the following shows the correct first step to prove the following by mathematical induction? 3 + 11 + 19 + 27 + … + (8n - 5) = n(4n - 1) ________________________________________ 3 + 11 + 19 + 27 + … + (8 • 1 - 5) = 1(4 • 1 - 1...

*December 15, 2016*

**precalculus**

Is my answer correct? Find Pk + 1 if Pk = 7 + 13 + 19 + ...+[6(k - 1)+1] + (6k + 1) ________________________________________ 7 + 13 + 19 + …+[6(k - 1) + 1] + (6k + 1) + [6(k + 1) + 1] 8 + 14 + 20 + …+[7(k - 1) + 1] + (7k + 1) 7 + 13 + 19 + …+(6k + 1) 7 + 13 + 19...

*December 15, 2016*

**precalculus**

Is my answer correct, I am confused by this question? Find the second difference for the sequence. 7, 6, 7, 10, 15, 22, …. 1 2 3 5 answer: 2

*December 15, 2016*

**precalculus**

can you check my answer? 2.Which of the following shows the best next step to prove the following by mathematical induction? n!>2^n, n?4 1. When n=1 the formula is valid because 4!>2^4 24>16 2.Assuming that k!>2^k show that (k+1)!>2^k+1 (k+1)!=k!(k+1) a.k!(k+1)&...

*December 15, 2016*

**precalculus**

Can you check my answers? 1.Which of the following shows the best next step to prove the following by mathematical induction? 3^n>n*2^n, n?1 1.When n=1, the formula is valid because 3^1 1*2^1 3>2 2.Assuming that 3^k>k*2^k a.3^k+1>k+1*2^k+1 b.3^k+1>k*2^k+1 c.4^k&...

*December 15, 2016*

**precalculus**

Can you check my answer? Which of the following shows the best next step to prove the following by mathematical induction? 1+4+7+10 + + (3n-2)=n/2(3n-1) 1.When n=1, the formula is valid because (3*1-2)=1/2(3*1-1) (3-2)=1/2(3-1) 1=1/2(2) 1=1 A. You must show that 1+4+7+10...

*December 15, 2016*

**precalculus**

Can you check my answers? 1.Which of the following shows the best next step to prove the following by mathematical induction? 3^n>n*2^n, n?1 1.When n=1, the formula is valid because 3^1 1*2^1 3>2 2.Assuming that 3^k>k*2^k a.3^k+1>k+1*2^k+1 b.3^k+1>k*2^k+1 c.4^k&...

*December 15, 2016*

**precalculus**

Are my answers correct if not which are right? Find the second difference for the sequence. 7, 6, 7, 10, 15, 22, …. 1 2 3 5 answer:a Find first differences for the sequence in order from a1 to a5. Determine whether or not the series is quadratic or not. -1, -3, -1, 5, 15 ...

*December 14, 2016*

**precalculus**

Find Pk + 1 if Pk = 7 + 13 + 19 + ...+[6(k - 1)+1] + (6k + 1) 7 + 13 + 19 + …+[6(k - 1) + 1] + (6k + 1) + [6(k + 1) + 1] 8 + 14 + 20 + …+[7(k - 1) + 1] + (7k + 1) 7 + 13 + 19 + …+(6k + 1) 7 + 13 + 19 + ...+[6(k - 1) + 1] + (6k7 +1) + (6k + 2) answer:D What is ...

*December 14, 2016*

**precalculus**

For question 1 Find Pk + 1 if Pk = 7 + 13 + 19 + ...+[6(k - 1)+1] + (6k + 1) there isnt an option for the answer Pk = 7 + 13 + 19 + ...+[6(k - 1)+1] + (6k + 1) + (6k + 7) so I am confused as to which is the correct answer. for question 3 Which of the following shows the ...

*December 14, 2016*

**precalculus**

Find a quadratic model for the sequence. -4, -4, -3, -1, 2

*December 14, 2016*

**precalculus**

find Pk + 1 if Pk=2K-1/k!

*December 14, 2016*

**precalculus**

Find a quadratic model for the sequence with the indicated terms. 3, 3, 5, 9, 15, 23, ...

*December 14, 2016*

**precalculus**

Prove the inequality for the indicated integer values of n. n! > 2n, n ? 4

*December 14, 2016*

**precalculus**

Find Pk + 1 for the given Pk. Pk = 1 + 6 + 11 + … + [5(k - 1) - 4] + (5k - 4)

*December 14, 2016*

**American Government**

1. B 2. D 3. A i just got 100%

*November 17, 2016*

**Problem solving**

Place a counter over the children. Draw the counter. Dont not what im suppose to do though.

*November 10, 2016*

**Probability & Stats**

The probability that Pete will catch fish on a particular day when he goes fishing is 0.8. Pete is going fishing 3 days next week. 1. The probability that Pete will catch fish on exactly one day is: a. .008 b. .096 c. .104 d. .8 Please show work

*November 2, 2016*

**social study's**

B) the gradual end of the nomadic lifestyle

*October 25, 2016*

**Algebra 2**

Describe the graph of y=1/2x-10 -3 compared to the graph of y=1/x

*October 17, 2016*

**Algebra2**

Does the relation in the table represent direct variation inverse variation or neither? If it is a direct or inverse variation, write an equation to represent the relation. (x,y) (5,2) (10,1) (15,2/3) (20,1/2)

*October 17, 2016*

**Physics**

A 54100 kg space ship has completed two thirds of its journey from the earth to the Moon. At this position, what magnitude force would the ship's engines have to supply to be the equilibrant? Assume the mass of the moon is 7.35E + 22 kg and the distance between the earth ...

*October 10, 2016*

**physics**

A bullet leaves a rifle with a muzzle velocity of 553 m/s. While accelerating through the barrel of the rifle, the bullet moves a distance of 0.648 m. Determine the acceleration of the bullet (assume a uniform acceleration).

*September 22, 2016*

**Math**

don't be rude. there is no purpose of you being here if you cannot help.

*September 21, 2016*

**math**

a lighthouse is 30m high. the angle of elevation from a ship to the top of the tower is 17 degrees. what is the horizontal distance from the ship to the lighthouse?

*September 20, 2016*

**Pre cal**

Fine a third degree polynomial function f(x) with real coefficients that has 4 and 2i are zeros and such that f(-1) =-50 4 21 -2i (x-4)(x-2i)(x+2i) (x-4)(x2+4) x3-16+4x-4x2 (x3-4x2+4x-16) -50=a(-1-4-4-16) -50=.25 a=2 Not understanding, please help

*September 4, 2016*

**algebra**

The area of a rectangle is 72 cm². The length. l, of the rectangle is 6 cm longer than the width, w. What is the width of the rectangle? 10 cm 8 cm 6 cm 2 cm

*August 26, 2016*

**math**

What is x on a 45,45,90 triangle if the hypotenuse is 145?

*August 24, 2016*

**physics**

An infinitely-long wire with resistivity 2.0*10^-8 ohm*m initially has 1.5 A of "conduction" current flowing through it. When the emf connected to the wire is turned off, this current stops in time of .6ns. Estimate the amount of displacement current created in the ...

*July 20, 2016*

**Physics**

I am uncertain on how to use gauss's law to derive the expression for the electric fields

*June 15, 2016*

**Physics**

An infinitely long, solid insulating cylinder with radius a has positive charge uniformly distributed throughout it with a constant charge per unit volume p. a) using Gauss's law, derive the expression for the electric field inside the cylinder r<a from the axis of the ...

*June 15, 2016*

**mathematics**

so instead of putting 40 squared i would put 40^2 correct? Thank you!

*June 9, 2016*

**ALGEBRA**

I don't understand

*June 9, 2016*

**ALGEBRA**

what about the rest?

*June 9, 2016*

**ALGEBRA**

Create a rational function with a linear binomial in both the numerator and denominator. Part 1. Graph your function using technology. Include the horizontal and vertical asymptotes and the x- and y-intercepts on your graph. Label the asymptotes and intercepts. Part 2. Show ...

*June 9, 2016*

**Algebra**

is that the answer?

*June 9, 2016*

**Algebra**

Create a system of equations that includes one linear equation and one quadratic equation. Part 1. Show all work to solving your system of equations algebraically. Part 2. Graph your system of equations, and show the solution graphically to verify your solution.

*June 9, 2016*

**Algebra**

Scores on a statewide standardized test are normally distributed with a mean of 12.89 and a standard deviation of 1.95. Certificates are given to students whose scores are in the top 2% of those who took the test. This means that they scored better than 98% of the other test ...

*June 9, 2016*

**Math**

Ms. Sue?

*May 4, 2016*

**Math**

Maria wants to cover the box shown below with paper.Which of the following could be the dimensions of the paper so that Maria has enough to cover the box, including the ends, with a little left over? Shape: Rectangular Prism Length:8 in Width: 2 in Height: 2 in A) 8 in x 4 in ...

*May 4, 2016*

**Math**

Ms. Sue? Reed? Anyone?

*May 4, 2016*

**Math**

Maria wants to cover the box shown below with paper.Which of the following could be the dimensions of the paper so that Maria has enough to cover the box, including the ends, with a little left over? Shape: Reactangular Prism Length:8 in Width: 2 in Height: 2 in A) 8 in x 4 in...

*May 4, 2016*

**Math**

thanks!

*May 3, 2016*

**Math**

Find the surface area of the prism. Rectangular Prism L=13 m W=6 m H=5 m A) 48m B)346m**** C)780m D)195m Please help!

*May 3, 2016*

**Chemistry- polarity**

Is 2,4-Hexadiyne-1,6-diol a polar or non-polar compound? I think it is non-polar, based on the the high retention factor (0.89) I got from the TLC.

*May 1, 2016*

**LA**

thanks so much.

*April 29, 2016*

**LA**

This summer, we will host an exchange student from Ecuador. What is the prepositional phrase in the sentence? a) This summer b) we will host c) an exchange student d) from Ecuador **** please help!!

*April 29, 2016*

**LA (Ms. sue?)**

Thanks!

*April 27, 2016*

**LA (Ms. sue?)**

The phrase closest in meaning to destined for is a) meant for* b) married to c) interested in d) loved by please help idk if it's a or c!! Ms.Sue?

*April 27, 2016*

**math**

Solve each equation by using the Quadratic Formula. Round to the nearest tenth if necessary. 1.6x2 + 2x + 2.5 = 0

*April 27, 2016*

**math**

How is the squareroot of -1 classified?

*April 22, 2016*

**Social studies**

Thanks, Ms.Sue

*April 20, 2016*

**Social studies**

Byzantine civilization was based on Roman traditions at first, but eventually was much more influenced by _________ culture. German Greek** Slavic Egyptian I need help asap!

*April 20, 2016*

**math**

| x + 1 | + 6 = 3

*April 20, 2016*

**Geometry**

Altitudes $\overline{XD}$ and $\overline{YE}$ of acute triangle $\triangle XYZ$ intersect at point $H$. If the altitudes intersect at a $123^\circ$ angle, and $\angle YXH = 26^\circ$, then what is $\angle HZX$ in degrees?

*April 19, 2016*

**Geometry**

Altitudes $\overline{XD}$ and $\overline{YE}$ of acute triangle $\triangle XYZ$ intersect at point $H$. If the altitudes intersect at a $123^\circ$ angle, and $\angle YXH = 26^\circ$, then what is $\angle HZX$ in degrees?

*April 19, 2016*

**help ms. sue/ science**

how is a parallel circuit different from a series circuit? Need help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

*April 15, 2016*

**L.A.**

Never mind, the answers are: 1.D 2.A 3.B

*April 15, 2016*

**L.A.**

1.? 2.A 3.D 1. What changes might help "Happiness is a charming Charlie Brown at orlando rep" to take on the general purpose of "You're a good man, Charlie Brown?" A. more facts and examples B. appeals to logic C. a formal style and persuasive language ...

*April 15, 2016*

**plz help**

Soooooooooooooooooooo...

*April 15, 2016*

**Ela**

If you are referring to the LA quick check on "you're a good man, Charlie brown" for Connexus, the answers are: 1. A,B,C,D (YOU CHOOSE) 2.B 3.B Hope that helps!

*April 14, 2016*

**Health**

The following is a health benefit of a nicotine substitute: it is cheaper than regular cigarettes so you can still get the benefit of nicotine at a lower cost. true false** I have no clue. can someone please help me?

*April 12, 2016*

**Healthcare Statistic**

The HIM coding supervisor agrees to pay a new graduate $13.50 per hour. This is a full-time coding position at 2,080 hours per year. The cost for a full-time employee's fringe benefits is 24 percent of the employee's salary. How much must the supervisor budget for the ...

*April 10, 2016*

**History**

Where are your answers?

*April 6, 2016*

**Science**

Wait no, is it C?

*April 6, 2016*

**Science**

Why is a gas able to flow? It's particles have melted and can move around. It's particles have high viscosity and can move around. It's particles have enough energy to move around. It's particles have enough pressure to move around.** not sure of the answer. ...

*April 6, 2016*

**Math**

Oh okay thanks! Sorry that was such a dumb question lol my brain was not working.

*April 6, 2016*

**Math**

Similar polygons are _____ the same size. always sometimes** never I'm having a brain fart. ahh! please help!

*April 6, 2016*

**History (check answer!)**

I'm late but the answer is C

*April 6, 2016*

**History**

thank you!

*April 6, 2016*

**History**

The Roman Empire was largest during which emperors rule? Hadrian Nerva Marcus Aurelius Trajan*** please help!

*April 6, 2016*

**Check answers?**

A!

*April 6, 2016*

**Math**

Because if the room is square, and the walls are 14 ft long, 14 * 14 is 196 square ft. 90 times 3 is 270, and it is the least number there, and 2 (even though it is not there, it would equal 180). Am I right?

*April 4, 2016*

**Math**

Each pail of plaster covers 90 square feet of ceiling. What is the least number of pails of plaster you would need to buy to cover the ceiling of a square room with walls 14 feet long? 5 pails 6 pails 3 pails (my answer) 4 pails

*April 4, 2016*

**math**

BOOKS A library contains 2000 books. There are 3 times as many non-fiction books as fiction books. Write and solve a system of equations to determine the number of non-fiction and fiction books.

*April 4, 2016*

**Math**

51.75 cubes

*March 26, 2016*

**Science**

I'm late, but yes, it's d.

*March 16, 2016*

**Calculus Related Rates**

A balloon, 50 feet from an observer, is rising at 20 ft/sec. At 5 seconds after lift off 1. How fast is the distance between the observer and the balloon changing? 2. How fast is the angle of elevation changing? I need help on both questions. Thanks in advance smart people!!

*March 14, 2016*

**Algebra**

Is .0010001... Rational?

*March 13, 2016*

**math**

B is my guess but I need help too

*March 11, 2016*

**math**

it might be b I'm not sure

*March 11, 2016*

**Geometry**

I think John is right

*March 5, 2016*

**Calculus Related Rates**

Two people leave from the same spot and walk at 4ft/sec going north and 5ft/sec going northwest. At 30 seconds, how fast is the distance between them changing?

*March 3, 2016*

**Calculus Related Rates**

Mulch is dumped into a pile with height always 1/3 the diameter at a rate of 30 ft^3/hr. How fast is the height increasing when it is 6 ft tall?

*March 3, 2016*

**math**

a private jet flies the same distance in 6 hours that a commercial jet flies in 4 hours.if the speed of the commercial jet was 143 mph less than 2 times the speed of the private jet, find the speed of each jet

*February 27, 2016*

**algebra**

BASEBALL The equation h = –0.005x2 + x + 3 describes the path of a baseball hit into the outfield, where h is the height and x is the horizontal distance the ball travels. a. What is the equation of the axis of symmetry? b. What is the maximum height reached by the ...

*February 26, 2016*

**Adelphi**

Which is a guideline for doctors pursuing research with human subjects?

*February 23, 2016*

**Physical Science**

Which SI unit is used to measure length? A. meters B. newtons C. grams D. liters

*February 9, 2016*