Saturday

January 21, 2017
Total # Posts: 1,580

**algebra 2**

Renee belongs to a bowling club. She scores 50, 52, 55, and 59 on her first four games. She hopes to continue improving according to this pattern. Part A: What are the next four terms in Renee’s sequence? Part B: Write an recursive function rule for the sequence? Part C: ...

*May 24, 2012*

**PsyDAG homework check please**

Range = highest value - lowest=$475 Mode = most frequently occurring score=$650 Median = 50th percentile. Half of the scores have a higher value and half are lower=$650 Mean = sum of scores/number of scores=$637.50

*May 23, 2012*

**algebra 2**

The monthly rents for the apartments in a building are listed below. $425, $550, $550, $550, $650, $650, $650, $650, $800, $900 Part A: Find the mean, median, mode, range, and standard deviation of the rents. Part B: The apartment manager considers raising the rent for every ...

*May 23, 2012*

**algebra**

A normal distribution has a mean of 98 and a standard deviation of 6. What is the probability that a randomly selected x-value from the distribution is at least 80?

*May 23, 2012*

**algebra 2**

Thank you!!!!! I see my mistake now...

*May 23, 2012*

**algebra 2**

A sequence is defined recursively by a1=1,an=(an-1+1)^2. Write the first 4 terms of the sequence.

*May 23, 2012*

**algebra 2**

A store sells rings with birthstones selected from the 12 different months of the year. The stones are arranged in a row. Part A: Mary wants a ring with a topaz, a sapphire, and a ruby set in a line. Write and evaluate an expression to show how many ways the 3 stones can be ...

*May 23, 2012*

**algebra 2**

Thank you!!!

*May 23, 2012*

**algebra 2**

Jeremy and Noor are playing a game where they each draw a marble from a bag, and whoever draws the marble worth the most points wins. Red marbles are worth 1 point, green marbles are worth 2 points, blue marbles are worth 3 points, and white marbles are worth 10 points. There ...

*May 23, 2012*

**algebra**

If events A and B are independent, P(A) = 0.62, and P(B | A) = 0.93, what is P(B)?

*May 22, 2012*

**algebra**

If events A and B are independent, P(A) = 0.62, and P(B | A) = 0.93, what is P(B)?

*May 22, 2012*

**algebra 2**

504?

*May 21, 2012*

**algebra 2**

Nine people are entered in a race. If there are no ties, in how many ways can the first three places be awarded? 3 252 472 504

*May 21, 2012*

**math**

there are 10 tenths in one whole.There are 100------------------ in one whole

*May 21, 2012*

**algebra 2 help please**

7 girls audition for 12 roles in a school play. What is the probability that at least 2 of the girls audition for the same part?

*May 21, 2012*

**algebra 2**

Find the first 5 terms of the sequence with a1=6 and an=2a n-1 -1 for n _>2 a. 6, 12, 24, 48, 96 b. 6, 11, 21, 41, 81 c. 6, 7, 8, 9, 10 d. 1, 2, 3, 4, 5

*May 21, 2012*

**algebra 2**

Thank you!!!

*May 21, 2012*

**algebra 2**

What is the 16th term in the following geometric sequence? 5, –10, 20, –40, 80, ...

*May 21, 2012*

**algebra 2 help please**

1/6?

*May 20, 2012*

**algebra 2 help please**

Yves and some friends are playing a fair game in which 18 cards are dealt to 6 players. One of the cards is a queen. The player who receives the queen goes first. What is the probability that Yves will go first? a) 1/18 b) 1/3 c) 1/6 d) 1/13

*May 20, 2012*

**algebra 2 help please**

You have a carrying case that holds four CDs. You want to know in how many ways you can place four of the ten CDs you own into the case.

*May 20, 2012*

**algebra 2**

Keep in mind....its algebra. :)

*May 20, 2012*

**algebra 2**

7 girls audition for 12 roles in a school play. What is the probability that at least 2 of the girls audition for the same part?

*May 20, 2012*

**algebra 2 homework check**

Yves and some friends are playing a fair game in which 18 cards are dealt to 6 players. One of the cards is a queen. The player who receives the queen goes first. What is the probability that Yves will go first? Is it 1/3?

*May 20, 2012*

**algebra 2 help please/check**

The first 3 terms in a geometric sequence are 1.1, 1.65, and 2.475. Part A: What is the sum of the first 6 terms of the sequence? Show your work. Part B: How does the sum of the seriesy differ from the 6th term? Explain. Part C: If the nth term in this sequence represents the ...

*May 20, 2012*

**algebra 2**

The first 3 terms in a geometric sequence are 1.1, 1.65, and 2.475. Part A: What is the sum of the first 6 terms of the sequence? Show your work. Part B: How does the sum of the seriesy differ from the 6th term? Explain. Part C: If the nth term in this sequence represents the ...

*May 19, 2012*

**algebra 2 homework check**

Thank you!!!!

*May 19, 2012*

**algebra 2**

Thank you!!!!

*May 19, 2012*

**algebra 2**

Ralph, Mario, Jack, Laura, and Maria are in the math club. The club advisor will assign students to 3-person teams at the next math team competition. How many different 3-person teams can be formed from these five students? I got this wrong...here was my answer 5*4*3/(2*1) 60/...

*May 19, 2012*

**algebra 2 homework check**

Thank you. Boy I was way off!!! I guess I over think things.

*May 19, 2012*

**algebra 2 homework check**

Tell whether the possibilities should be counted using a permutation or combination. Then find the number of possibilities. You have a carrying case that holds four CDs. You want to know in how many ways you can place four of the ten CDs you own into the case. Answer: 10*9*8*7...

*May 19, 2012*

**algebra 2**

Yves and some friends are playing a fair game in which 18 cards are dealt to 6 players. One of the cards is a queen. The player who receives the queen goes first. What is the probability that Yves will go first?

*May 19, 2012*

**algebra 2**

Thank you

*May 19, 2012*

**algebra 2**

If no digit appears more than once, how many 2-digit numbers can be formed from the digits 1, 3, 5, and 7?

*May 19, 2012*

**algebra 2 help please**

D)x^2+y^2=625 X^2+(y-50)^2=1122 Y=20 (-15,20)(15,20) E)x^2+y^2=625 X^2+y^2-200y+10000=13618 Y=18 (-20,-15)(20,-15) 1)Combine your answers from Parts D and E to pinpoint the epicenter of the earthquake 2)Graph the equations for all three stations to verify your algebraic ...

*May 17, 2012*

**algebra 2**

An auditorium has a curved back wall. A horizontal cross section of the wall is in the shape of a parabola. The wall is 80 feet wide and the vertex of the parabolic cross section is 50 feet from the stage. Where in the auditorium should you sit for the best sound quality?

*May 14, 2012*

**algebra 2**

Nonlinear systems Solve the system by elimination. y=x^2+2 -4x-y=10 Solve the system using substitution. y=-3x^2+x-2 y=-5x+3

*May 9, 2012*

**algebra 2**

An auditorium has a curved back wall. A horizontal cross section of the wall is in the shape of a parabola. The wall is 80 feet wide and the vertex of the parabolic cross section is 50 feet from the stage. Where in the auditorium should you sit for the best sound quality? ...

*May 9, 2012*

**physics**

Two rigid rods are oriented parallel to each other and to the ground. The rods carry the same current in the same direction. The length of each rod is 0.85 m, and the mass of each is 0.077 kg. One rod is held in place above the ground, while the other floats beneath it at a ...

*May 8, 2012*

**algebra 2**

Nonlinear homework... Solve the system by elimination. 1)y=x^2+2 -4x-y=10 2) Solve the system using substitution. Y=-3x^2+x-2 Y=-5x+3

*May 7, 2012*

**algebra 2**

Solving nonlinear systems

*May 7, 2012*

**algebra 2**

Solve the system using substitution. Y=-3x^2+x-2, Y=-5x+3

*May 7, 2012*

**algebra 2**

Solve the system by elimination. Y=x^2+2, -4x-y=10

*May 7, 2012*

**physics**

A body projected upward from the level ground at an angle of 50º with the horizontal has an initial speed of 40 m/s. (a) How long will it take to hit the ground? (b) How far from the starting point will it strike? (c) At ehat angle with the horizontal will it strike?

*May 5, 2012*

**algebra**

Write an equation for a parabola with vertex at (3, -6) and focus at (3, -4)

*May 4, 2012*

**algebra**

Write the equation for a parabola with vertex ( -2, 3) and focus ( -2, 1

*May 4, 2012*

**Maths**

Oh dear me. What is this? My eyes are burning!

*May 3, 2012*

**calculus**

What size should be the frame be? Suppose an artist has a circular picture with a diameter 6 inches which she wishes to frame by a uniform width frame with covers 1/2 inch width uniformity of the painting and has total area equal to that of the exposed painted surface when the...

*May 1, 2012*

**Math**

How do you use prime factorization to reduce a fraction?

*April 26, 2012*

**Math**

Sorry, I didn't see yours

*April 26, 2012*

**Math**

How do you use prime factorization to reduce a fraction?

*April 26, 2012*

**Math**

how do you write the prime factorization for 75/108.

*April 25, 2012*

**Math**

If input x is 1, 2, 3, 4 and output y is 6, 10, 14, 18 , what is its function rule?

*April 23, 2012*

**Help**

Avery has a three week vacation. He plans on driving a total of 4,898 miles. About how many miles should he average per day? As it turned out he spent 5 hours a day driving and drove a total of 5,565 miles. What was his average speed for the hours he drove?

*April 23, 2012*

**Math**

It is known that if the deer population falls below a certain level, m, then the deer will become extinct. It is also known that is the deer population goes above the maximum carrying capacity, M, the population will decrease to M. (a) Discuss the reasonableness of the ...

*April 20, 2012*

**math**

A jar consists of 21 sweets, 12 are green and 9 are blue. William picked 2 sweets at random. Find the probability that both sweets are blue.

*April 19, 2012*

**math**

A jar consists of 21 sweets, 12 are green and 9 are blue. William picked 2 sweets at random. Find the probability that both sweets are blue.

*April 19, 2012*

**physics**

One gram of tungsten has 3.28 × 1021 atoms, and each tungsten atom has 74 electrons. How many electrons are contained in 9.00 g of tungsten? Answer in units of electrons

*April 19, 2012*

**physics**

Three point charges, +6.5 ¦ÌC, +1.4 ¦ÌC, and −3.9 ¦ÌC, lie along the x-axis at 0 cm, 1.8 cm, and 5.3 cm, respectively. What is the force exerted on q1 by the other two charges? (To the right is positive.) The Coulomb constant is ...

*April 19, 2012*

**physics**

Two electrostatic point charges of +54.0 ¦ÌC and +47.0 ¦ÌC exert a repulsive force on each other of 189 N. What is the distance between the two charges? The value of the Coulomb constant is 8.98755 ¡Á 109 N ¡¤ m2/C2. Answer...

*April 19, 2012*

**physics**

A small cork with an excess charge of +5.0 ¦ÌC is placed 0.14 m from another cork, which carries a charge of −3.2 ¦ÌC. What is the magnitude of the electric force between the corks? The Coulomb constant is 8.98755 ¡Á 109 N ¡...

*April 19, 2012*

**economics**

Companies are usually taken private by who?

*April 17, 2012*

**Grammar**

Proofreading.. PROCEDURE: The patient was prepped and draped in the usual sterile fashion. Examination of the vocal chords in a sitting position revealed a poly-poid growth in front of the left false vocal cord with erythematous base and yellow colored tip. Vocal cord appeared...

*April 17, 2012*

**Grammar**

Proofreading: This paragraph just sounds awkward to me to begin with. Carina was inspected at that time, which appeared sharp with no mucosal lesions noted. 2% Lidocaine was instilled over the carina. Right main stem bronchus was inspected next. Opening to the right upper lobe...

*April 17, 2012*

**grammar**

LOL I can't believe I missed father being capitalized. Thank you writeacher.

*April 17, 2012*

**grammar**

Editing grammar. Review of the sleep questionnaire indicates that the patient had a Trend Oximetry done 2 years ago, and was placed on 9 cm of sea pap. The patient notes that he has not seen much change with the use of it. His Father has a history of the same. He still ...

*April 17, 2012*

**RMS Speed**

Nvm, got it

*April 16, 2012*

**RMS Speed**

A gas is at 20°C. To what temperature must it be raised to triple the rms speed of its molecules? Ans: 2364oC I don't get how they got the answer. Please help!

*April 16, 2012*

**math**

Need help

*April 14, 2012*

**grammar**

1. If we can meet with the patient and he / him / himself, we can discuss possible alternative treatments. A) he B) him C) himself 2. An argument between her boyfriend and her / she resulted in the latest injury. A) her B) she 3. The patient’s son is taller than he / him...

*April 10, 2012*

**Calculus**

Which of the following is the x-intercept of the plane 2x-4z+1=0? a) P(2,0,-4) b) P(0,0,0) c) P(-1/2,0,0) d) P(0,0,1/4)

*April 9, 2012*

**Calculus**

Which of the following planes is the equation for the pane with an x-intercept at P(2,0,0), a y-intercept at Q(0,-3,0), and is parallel to the z-axis? a) 3x-2y-6=0 b) 2x-3y+z-6=0 c) 3y-2z-6=0 d) z=-6

*April 9, 2012*

**Calculus**

Which value of k will make the plane r=(k,3k,12) +s(2,2,3)+t(-1,1,3), s,teR passing through the origin? a) 2 b) 1 c)0 d) -1

*April 9, 2012*

**Calculus**

Explain the possible relationships between two lines in R^3

*April 9, 2012*

**Calculus**

I was thinking about that, ha~ but thought it would be wrong. Thanks!

*April 8, 2012*

**Calculus**

Determine two sets of parametric equations for the line passing through the points P(1,7,1) and Q(3,4,4) ---------------------------------------- I got one of them but I don't know how to get a second parametric equation. first one: x=1-2s, y=7+3s, z=1-3s second:???

*April 8, 2012*

**geometry**

1. 5/3 2.25/9 :D ^_^

*April 8, 2012*

**Calculus**

Explain why the plane with Cartesian equation 2x+5z-3=0 never intersects the y-axis. Answer:Because there is no y-value in the equation?

*April 8, 2012*

**Calculus**

Verify please and thank you~ Does the line (x-7)/3=(y+8)/6=(z+4)/5 and the point P(10,-2,1) determine a plane? Answer: Yes, it is a plane because when I substituted the point P(10,-2,1) into the equation, I got the coordinates (1,1,1) If the coordinate became to be (0,0,0) ...

*April 8, 2012*

**Calculus**

Determine the value of k that makes the line (x+2)/4=(y+1)/5=(z-3)/3 and r=(1,3,6 +s(-2k,2,k), SeR, perpendicular.

*April 8, 2012*

**Chemistry**

A mixture contains 5.0 g of He, 1.0 g of Ar, and 3.5 g of Ne. Calculate the volume of this mixture at STP. Calculate the partial pressure of each gas in the mixture at STP.

*March 28, 2012*

**buckley**

x-intercept -4:y - intercept -2 write an equation in slope - intercept form

*March 27, 2012*

**Grammar**

1. Select the sentence which is correctly punctuated: A) The patient was seen by Dr. Jones cardiology specialist Dr. Smith rheumatology specialist and Dr. Brown urology specialist. B) The patient was seen by Dr. Jones, cardiology specialist; Dr. Smith, rheumatology specialist...

*March 19, 2012*

**Grammar**

Thank you Ms. Sue!

*March 19, 2012*

**Grammar**

Need a little bit of help here. 1. Select the correct verb form: A) The box of medical books was heavy. B) The box of medical books were heavy. 2. _____are going to dinner together. A) Me and my boss B) My boss and I 3. Select the sentence which is correctly punctuated: A) The...

*March 19, 2012*

**Math**

Express in exponential form: -3log5(z)-x^2=2x+1

*March 16, 2012*

**Math**

Express in logarithmic form: y=27(1/3)^2x

*March 16, 2012*

**chemistry**

how to change mg/mL into mmol/L?

*March 14, 2012*

**MATH**

6:10 closer to the 6'o clock and why?

*March 14, 2012*

**chemistry**

THANKS

*March 12, 2012*

**chemistry**

DrBob22 PLEASE hELP!!!!!!!!!!!!!!!!!

*March 12, 2012*

**chemistry**

The urine excreted by an adult patient over 24 hours was collected and diluted to give 2.000L sample. at ph 10 EDTA FORMS 1:1 COMPLEX WITH BOTH Mg2+ and Ca2+ and after buffering at this pH a 10mL aliquot of the sample required 26.81mL of 0.003474M EDTA for titration The ...

*March 12, 2012*

**Chemistry**

[H2O]=1M

*March 9, 2012*

**trig**

find the general solutions to the equations: 1) sec x = -2 2) 2 sin^2 x = 1 3) cos^2 x - 2cos x + 1 = 0

*March 5, 2012*

**Chemistry**

I was wondering if anyone could describe a general Friedel-Crafts alkylation to me. I understand that it involves the substitution of an aromatic ring with an alkyl group using a strong Lewis acid catalyst. But, what types of activating groups are present on the ring? What'...

*March 1, 2012*

**Math- Exponent Laws.**

Simplify, "put the power into a single positive exponent." -(-2)^0*(-2)^3*(-2)^-4/(-2)^3 please help I am so lost on how to solve this problem!! I have been trying to figure it out for days. the - in front of the (-2) is very confusing.

*February 29, 2012*

**Science**

Where the animal first starts to deposit fat?

*February 27, 2012*

**Chemistry**

An aqueous salt solution is formed by adding 11.67 g sodium sulfate (solute) to water (solvent). What mass (in g) of water is used if the freezing point of the solution is -12.9 Farenheit. Kf H2O = 1.86 Celsius/m

*February 24, 2012*

**chemistry**

For the reaction, A ¨ B, ƒ¢H‹ = +11.00 kJ mol-1 and Keq is 12.50 Calculate i) ƒ¢G‹ and ii) ƒ¢S‹ at 25 ‹C. [0 ‹C = 273.15 K; R = 8.314 J K-1 mol-1]

*February 21, 2012*

**physics**

For the reaction, A ¨ B, ƒ¢H‹ = +11.00 kJ mol-1 and Keq is 12.50 Calculate i) ƒ¢G‹ and ii) ƒ¢S‹ at 25 ‹C. [0 ‹C = 273.15 K; R = 8.314 J K-1 mol-1]

*February 21, 2012*