# Posts by bob

Total # Posts: 3,291

**Math**

what is the area of the countertop in square meters

**Math**

A countertop is 16 feet long and 3 feet wide

**Chemistry**

Are you in Mr. Leingang's class?

**chemistry**

If the intial rate of the reaction produces 2 moles of water vapor, H2O, per second, what is the rate at which oxygen, O2, is consumed initially?

**Math**

its number 2 bro

**Calculus**

Graph the function f(x)=x+4/x Graph the secant line that passes through the points (1,5) and (8,8.5) on the same set of axes Find the number c that satisfies the conclusion of the Mean Value Theorem for f on [1,8] c= Notice that if you graph the tangent line to the point (c,f(...

**Math**

Hey Daisy. Plot your data points on desmos it'll help. Once plotted, this question is awfully easy.

**factorization**

Its 5 X 5 or 2 X 23 or 3X3X3

**Physics**

A stationary observer hears a sound with a frequency of 450 Hz from an approaching car. If the car emits the sound at a frequency of 360 Hz, what would be the speed of the car? (Speed of sound 340 m/s)

**language arts**

The speaker feels confident

**CHEM**

what is the mass percentage if you dissolve 0.659 mol of citric acid, C6H8O7, in 1.00 kg of water.

**Algebra**

Well your answer is wrong and you should use IXL it help alot.

**Algebra**

Tom curry apple jacks

**physicss**

A 0.145 kg baseball pitched at 44.0 m/s is hit on a horizontal line drive straight back toward the pitcher at 52.0 m/s. If the contact time between bat and ball is 3.00 ✕ 10-3 s, calculate the average force between the ball and bat during contact.

**math**

Even though the x-axis is on 0, she still needs to move the y-axis either to the left or right which will change it to being on the y axis.

**Physics**

A spring with an unstrained length of 0.075 m and a spring constant of 2.7 N/m hangs vertically downward from the ceiling. A uniform electric field directed vertically upward fills the region containing the spring. A sphere with a mass of 4.84 10-3 kg and a net charge of +7.0...

**physics**

SOMEONE HELP ME PLEASE

**physics**

A boy on a 2.2 kg skateboard initially at rest tosses a(n) 8.4 kg jug of water in the forward direction. If the jug has a speed of 3.0 m/s relative to the ground and the boy and skateboard move in the opposite direction at 0.60 m/s, find the boy’s mass. Answer in units of kg

**Language Arts**

6 is deep

**language arts**

B A B A

**English**

I have to pick a topic for an argumentative research paper, but when I think about different topics I realize that all of my ideas and support on the subjects are from other people's ideas that I have read or heard. So how do I come up with original ideas for a topic ...

**Science**

2500

**Physics**

boi

**Math**

Samuel and Jason 3/4 of the combined earnings from Wednesday to buy a gift. how much do they spend? Is there enough left over from Wednesday's earnings to buy a card that costs $3.25?

**Math**

10

**math**

repost find unknown number in the equation 9/10 - x = 1/5

**math**

find unknown number in the following equation 9/10 - x +1/5 what is x

**math**

the wheel of a bicycle has a diameterof 72 cm and are rotating with an angular velocity of 12 rad/s. determine how much time the bicycle takes to travel 100m.

**Math**

First week sells 6 chairs for $80 each. Next week, if chair is not sold, it will sell for 0.85 times previous week's price. Store needs to sell 6 chairs for total of $270 to make a profit. what is the last week in which all 6 chairs could be sold so that the store makes a ...

**Math**

It is 79 cm

**calculus**

Put the lime in the coconut and shake it all up

**calculus**

no idea

**Language Arts**

B A D A B A A C D B B C D I Got 100% With these answers

**6th grade math**

How is it 7(x+10) = 112 @Steve Sorry,I don't get it :(

**6th grade math**

Sorry for the last comment,just trolling (Didn't think they will allow me to post :o). But 112 is the min. he can stay under water, so 10*7x=112?

**English help**

I think it's hard news article.

**LANGUAGE ARTS !! 8TH GRADE**

YOU ARE WRONG OMFG WHY WHY WHY WHY WHY WHYW HYW LIESSSSSSSSSSSSSSSSSSSSSSS

**physics**

By the way, the equation is: Fg = GM/r^2 Where G = Gravitational Constant (6.67 * 10^-11) M = Earth's mass r = Earth's radius The givens are: Earth's mass = 5.98 * 10^24 kg Earth's radius = 6.38 * 10^6 m

**physics**

What is the distance from the earth's center to a point where your weight would be 1/25 of what you weigh at the surface?

**Quick Question**

When you have to pay for something weekly, does that mean every end of the week?

**Chemistry**

4.2

**economics**

Mutual funds are attractive to small investors because (a) the funds offer a guaranteed return on investment (b) the funds are insured by an agency of the US government (c) the funds offer the opportunity to share in an investment in a variety of stocks and bonds (d) investors...

**P.E**

Mrs. Sue could you please help us with these answers i love to have the answers but at the most hint the answers please please pleasssseeee i reall y need a good grade on this assignment.?

**math**

t(n)

**math**

the third term of a geometric sequence is 25 and the eighth term is 25/32. find a, r, and t

**math**

that's dumb is there a different way to do it? with a formula?

**math**

an employee is paid $3600 for the first month. she is paid an additional 1% at the end of the second month, which means a total of $3636. she continues to receive a 1% raise each month for a full year. what is her total salary at the end of the year?

**Stat**

Assume that a procedure yields a binomial distribution with a trial repeated n times. Use a binomial probabilities table to find the probability of x successes given the probability p of the success on a given trial N=9 X=0 p=0.30

**math help**

thank you !

**chemistry. please help drboz222**

Calculate the oxygen ppm concentration of a 3.50 kg sample of lake water that comtains 2.34 mg of dissolved oxygen

**P.E**

these should be the right answer let me know if they are not but im sure if you use them that you will get a hundred.

**P.E**

as anyone going to answers these if they are the right answers.

**P.E**

these are my answer mrs sue d b b a c b a b a d

**P.E**

these are the right answers i think MRS.SUE would you please check them.?

**P.E**

that's what i've been trying to figure out but i'm sure that the answers they have are right but could you please check them someone? please.(@_@).

**Economics**

What are two reasons why the values of corporations fluctuate? Explain. My answer: Competition and events in the world

**language arts**

GG, your lack of grammar and intelligence is very amusing.

**P.E. help**

he is correct

**Math**

A fence 12ft high runs parallel to a tall building at a distance of 2ft from the building. What is the length of the shortest ladder that will reach from the ground over the fence to the wall of the building?

**Algebra**

James, Karen, and Lou are hiking. Lou forgot to bring any water. James brought 2 gallons of water and Karen brought 1 and 3/4 gallons of water. The three of them agree to divide all the water equally among them. Lou gives $2 for the water he receives, which James and Karen ...

**Calculus**

Steve is wrong. The second derivative isn't what Steve said was

**Algebra please?**

COMPARE not whatever you doin.

**Algebra**

Our basketball team has finished 80% of its season, during which we won 40% of the games we played. What percent of the remainder of our games must we win in order to finish the season with the same number of wins as losses?

**ratio and rates**

Gina's art teacher mixes 9 pints of yellow paint with 6 pints of blue paint to create green paint. Gina mixes 4 pints of yellow paint with 3 pints of blue paint.

**math**

no

**physics**

Three blocks A, B, and C are connected by two massless strings passing over smooth pulleys as shown below, with the 3.4-kg block on a smooth horizontal surface. Calculate the tension in the strings connecting A and B, and, B and C.

**Chemistry**

Kc is 1.67 × 1020 at 25°C for the formation of iron(III) oxalate complex ion: Fe3+(aq) + 3 C2O42-(aq) [Fe(C2O4)3]3-(aq). If 0.0200 M Fe3+ is initially mixed with 1.00 M oxalate ion, what is the concentration of Fe3+ ion at equilibrium?

**Chemistry**

The equilibrium constant, Kp, equals 3.40 for the isomerization reaction: cis-2-butene trans-2-butene. If a flask initially contains 0.250 atm of cis-2-butene and 0.145 atm of trans-2-butene, what is the equilibrium pressure of each gas?

**physics**

idk

**Algebra**

(7.8*10 to the 12th power)*800=(7.8*10 to the 10th power)*80,000 Directions:tell whether each equation is true or false. if false, write the inequality in like terms I don't remember how to start multiplying.

**Math**

ASHLEY BORROWED 3 BOOKS FROM THE LIBRARY. THIS WAS 25% SHE CHECKED OUT. HOW MANY BOOKS DID SHE CHECK OUT

**Physics**

A 85-Kg firefighter climbs up a ladder at a constant speed of 2.5 m/s. What average power does the firefighter expend to overcome gravity?

**Chemistry**

Given the molar concentration of hydroxide ion, calculate the concentration of hydrogen ion. Part A [OH?]=0.0010 Express your answer using two significant figures. [H+] =

**math**

what are the steps in determining how to maximize the area of a rectangle given a specific perimeter?

**math**

what is 1/3 divide 5/8

**Math**

4/7

**physics**

A solid disk rotates in the horizontal plane at an angular velocity of 0.040 rad/s with respect to an axis perpendicular to the disk at its center. The moment of inertia of the disk is 0.13 kg·m2. From above, sand is dropped straight down onto this rotating disk, so ...

**Chemistry Buffers**

Write reactions showing how each of the following buffers would neutralize added HCl. HF and NaF Express your answer as a balanced chemical equation. Identify all of the phases in your answer. HC2H3O2 and KC2H3O2 Express your answer as a balanced chemical equation. Identify ...

**physics**

A ball with radius 12cm rolls on a level surface, and the translational speed of the center of mass is 0.35 m/s. What is the angular speed about the center of mass if the ball rolls without slipping?

**math fractions**

•math - Ms. Sue, Sunday, November 16, 2014 at 12:39pm 12 •math - bob, Sunday, November 16, 2014 at 12:56pm Ms. Sue can you tell me how you got that answer please. •math - Ms. Sue, Sunday, November 16, 2014 at 1:09pm Multiples of 6: 6, 12, 18, 24 Multiples of 4: ...

**math**

thanks mrs. sue. I understand now how I should get the lcm but how do I figure out how many pounds of meat will be in the meat loaf? when I multiply do I work the problem like this.... 3/4 *5/6 =9/12*10/12 =90/12 =7 6/12 =7 1/2 is this correct?

**math**

Ms. Sue can you tell me how you got that answer please.

**math**

Tom is making meatloaf with 3/4 pound of turkey and 5/6 pound of ground beef. What is the LCM he should use to find the total number of pounds of meat? How many pounds of meat will be in the meat loaf? Show your work Completely.

**physics**

A piece of putty of mass m = 0.75 kg and velocity v = 2.5 m/s moves on a horizontal frictionless surface. It collides with and sticks to a rod of mass M = 2 kg and length L = 0.9 m which pivots about a fixed vertical axis at the opposite end of the rod as shown. What fration ...

**algebra**

Andy hit three less field goals than three times the number of field goals Gary hit. Together, they scored 17 field goals. Write and Solve an equation to find how many field goals Gary and Andy scored.

**Chemistry**

What is the approximate ΔH in kJ for the following reaction as written: 2NH3(g) --> 3H2(g) + N2(g) Careful, what kind of bond does the nitrogen molecule make?

**Chemistry**

Arrange the following diatomic molecules in order of weakest to strongest bond: HF, HCl, HBr, and HI.

**Chemistry**

Which of the following ionic lattices would have the highest melting point? A. Potassium oxide B. Beryllium oxide C. Boron nitride D. Lithium chloride

**Chemistry**

Which of the following ionic compounds has the highest melting point? Help: Lattice energy Select one: a. Cs2O b. K2O c. BeO d. SrO e. LiF f. CsI

**physics**

Sum of forces is F=mg-2.3N F=9.8*2.7N-2.3N F= 26.46-2.3 F=24.16 But F=ma 24.16N=2.7kg*a a= 8.96m/s^2

**Physics**

gitgud

**math**

What's an average size dog?

**chemistry**

How many atoms of oxygen are there in 5.00g of copper(II) sulfate pentahydrate?

**Engineering**

Have a new tutor who has failed to teach us most of his assignment, I've finally got stuck on derivation of the formula G=E/2(1+v). any help would be much appreciated!

**Geometry**

Two standard number cubes are thrown simultaneously. What is the probability that the combined result of the two cubes is exactly 7, or that it is less than (but not equal to) 6? Round answer to the nearest thousandth.

**Chemistry**

If ununseptium (element 117) reacts with oxygen what would be equation of the product? Thanks so much!

**Math**

5/6=1/3-x

**engineering**

I've answered it myself i think. The liquid is being compressed therefore the change in volume should be negative. if someone could verify that'd be great