# 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

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

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

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.

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

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 !

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

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

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