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Posts by David

Total # Posts: 2,261

Math
set up as a quadratic then solve for t 0=(8.98)t^2+55t-10 t=0.1767 seconds

Math
10ft

social studies
i to write a wellcome letter,wellcoming the new colonies to the United State and ease the fears

Physics
A small fish is dropped by a pelican that is rising steadily at 0.65 m/s. (Assume the positive direction is upward.) 1. After 2.5 s, what is the velocity of the fish? 2. How far below the pelican is the fish after 2.5 s?

science
what did galileo do in science that made him so famouse

physics
A mass m = 4.3 kg is attached to a vertical spring with k = 210 N/m and is set into motion. What is the frequency of the oscillation?

math
5th grade class of 16 students, one-half of the student arrived at school early, one-fourth arrived on time, and one-eighth arrived late. how many students were absent.

college algebra
use the given zero to find the remaining zeros of each function.g(x)=x^3+3x^2+25x+75;zero:-5i

math
Thanks, but that still makes no sense. If she SPENT a TOTAL of $43 which included $14 for socks and $18.75 for a wallet and had $4 LEFT, Why does the $4 even have to be in the equation? $43= $14 + $18.75 + LUNCH (X)

math
Why do you add the $4? My daughter missed this on a homework sheet because she didn't use the $4. Why should that even be considered?

math
Giselle spent a total of $43 when she went shopping. She spent $14 for socks, $18.75 for a wallet, and bought lunch. When she got home, she had $4 left. How much did she spend for lunch?

calculus
area of a semicircle is increasing at a constant rate. At 5 secs the area is 4pi. At 7 secs the area is 5pi. In terms of r at what rate is the radius changing?

OChem
A mixture of fluorene and benzoic acid is dissolved in diethyl ether and mixed thoroughly with an aqueous solution of NaOH. After the layers separate, what will each of the layers contain? Label the layers. Indicate the main components, not species that could be present in ...

Math
(9+8)*(7-6)*5+4*(3+2) = 105. You gotta add the parentheses first to get it to work. Remember that multiplication ALWAYS is done 1st.

Earth Science
It's not deposition ffs..

math
How can you divide m by 3 using an input and out put table?

university physics
Acceleration(g) = (Velocity^2)/(Radius) Velocity^2 = (Radius(g)) Velocity= sqrt(Radius (g)) Diameter= 2(radius) radius = Diameter/2 Velocity = sqrt(1170.0 m)/2(9.80m/s^2) Velocity = 75.7165 m/s ~ [75.7m/s] 3sig

English Literature
What pictures did the author leave in your mind? (Tell-Tale Heart)

English Literature
How do these words set the mood for the story? (The Tell-Tale Heart)

English Literature
What special words does the author use to help you see hear, smell, and/or taste things in the story- The Tell- Tale Heart by Edgar Allan Poe?

trig
To the nearest degree, determine the measure of angle X for each value of tan X a. tan X = 0.49 Just not sure how to solve these questions

ciencias
que planetas tendrian esas mismas manifestaciones

ciencias
que planetas tndrian esas mismas manifestaciones

Statistics
Given IQ~N(100, 256) find P(IQ > 115). Be certain to set your calculator to FLOAT 4 to match my answer exactly. I need to know how to figure this out on my calculator.... no one has taught me how to use my calc and I am so confused.... someone please help!

calculus
Find the points at which the following function is discontinuous.Indicate the intervals at which the function is continuous. f(x)= (x^2 if x<-1), (|x| if -1<x<=1), (3x+1 if 1<x)

6th
31,431,000 and this is the 23rd question in Saxon math course 1 😁 Hope I helped

6th grade english
I'm helping out my sister with her english homework and I am confused on what to do. Underline the independent clauses once and the dependent clauses twice. Circle the phrases. Our football team is proud because the team is undefeated. The part that i don't understand ...

CHEM - ASAPPP
write the equation for the reaction of fecl2 with k3[fe(cn)6]???

bio-assap
if there were two proteins samples of exactly the same concentration but one sample contained a protein having a significantly higher number of arginine and lysine residues compared to that of the other sample - would there be a difference in the amount of dye bound to each ...

math word problems
18+6=24 24-18=6 6x4=24 They both started off with 24 cards

engineering science
A ramjet is to propel an aircraft at Mach 3 at high altitude where the ambient pressure is 8.5 kPaand the ambient temperature T-node is 220 K. The turbine inlet temperature T is 2540 K. If all components of the engine are ideal - that is, frictionless - determine (a) the ...

simplify
Correct!

Math
Simplify. 4(c squared - 1) + 1/3c(3c+6)

Geometry
Write a two column proof. Given: angle STV is congruent to angle TVU, angle STU is congruent to angle UVS. Prove: Angle SVT is congruent to angle UTV.

Algebra
At noon, your family starts out .from Louisville to go to Memphis driving at 40 mi/h. Your uncle leaves Memphis to come to Louisville two hours later. He is taking the same route and driving at 60 mi/h. The two cities are 380 miles apart. At what time do the cars meet?

geometry
write a biconditional for: the moon is the largest satellite of Earth.

english
Can you explain why? I am horrible at english. You can contact me at 601-870-6672 Please someone help me understand this new english 12 stuff....

Math
Using formular express the equation. 5x2-6x-3=0

Physics
a rocket is launched at an angle of 53 degrees above the horizontal with an initial speed of 75m/s. It moves for 25 seconds along its line of motion with an overall acceleration of 25 m/s^2. What is its maximum height?

Math
Geometric Proofs.... Write a justification for each step Given: AB = EF, B is the midpoint of Line AC and E is the midpoint of Line DF. 1. B is the midpoint of Line AC and E is the midpoint of Line DF. 2. Line AB is congruent to Line BC and Line DE is congruent to Line DF 3. ...

Math
They both have the same amount of CD's. For minnie, 6 + 5 = 11 CD's For Amanda, 5 + 6 = 11 CD's So, 11 CD's = 11 CD's

Geometry
Geometric Proofs.... Write a justification for each step Given: AB = EF, B is the midpoint of Line AC and E is the midpoint of Line DF. 1. B is the midpoint of Line AC and E is the midpoint of Line DF. 2. Line AB is congruent to Line BC and Line DE is congruent to Line DF 3. ...

Chemistry
An object travels at a speed of 7500 cm/sec. How far will it travel in a day?

Geometry
The equation T = 0.03c + 0.05b relates the numbers of cans c and bottles b collected in a recycling rally to the total dollars T raised. How many cans were collected if $147 was raised and 150 bottles were collected? Solve the equation for c and justify each step.

science
how many liters of oxygen will react with 124.5 liters of propane

SIGS FIGS
WHAT ARE SIG FIGS

Science
What is the number of valence electrons for the element beryllium? Please help.

Physics
a worker drops a wrench from the top of a tower 90m tall. what is the velocity wgen the wrench strikes the ground?

Math
The organizers of of a walkathon get cost estimates from two printing companies to print brochures to advertise the event. The cost are given by the equations below, were C is the cost in dollars and N is the number of brochures. Company A: C = 15 + 0.10n Company B: C = 0.25n ...

Math
The organizers of of a walkathon get cost estimates from two printing companies to print brochures to advertise the event. The cost are given by the equations below, were C is the cost in dollars and N is the number of brochures. Company A: C = 15 + 0.10n Company B: C = 0.25n ...

Math Logic puzzle
A farmer has a goat, a wolf, and a cabbage. He wants to transport all three from one side of a river to the other. He has a boat, but it has only enough room for the farmer and one thing. The wolf willl eat the goat if they are left alone together, and the goat will eat the ...

math
i need to approximate profit in this equation 3. Hot Rocks Music sells CDs. If the profit can be approximated by following equation: , where x represents the number of thousands of CDs sold. Approximately, how many CDs must be sold in order for the company to make a profit?

MS. SUE HELP!
If 4.26 lb of chicken costs $6.77, what would 3.75 lb cost? PLEASE HELP ME MS. SUE D: CAN U PLEASE EXPLAIN ME B4 GIVING ME THE ANSWER

algebra
are u a teacher?

algebra
THANK YOU SO MUCH!!!!!!!!!!!!!!!!!!!! I GET IT NOW!!!!!!!! =)

algebra
You make 20 silk flower arrangements and plan to sell them at a craft show. Each flower arrangement costs $12 in materials, and your booth at the craft show costs $30. If you sell the arrangements for $24 each, how many must you sell to make at least $100 profit?

chemistry
x = (Br-)- 0.10 how do you get the actual answer for that problem if there is no ksp for it?

Math
Hello. I am trying to help out my sister and find patterns in numbers.... Ex/ 1+2 2+2 3+2 4+2 My question is... I can't figure out what the pattern is in the following set... 1 goes to 4 2 goes to 7 3 goes to 10 and 4 goes to 13...... I initially thought that it was 3x + 2...

Alg
4(q+p)

8th grade math
I need to know how to work this math problem: 3n + (-7) -5n +1

English
Is there anything else in the following sentence that needs capitalizing: "In January we are going to the Sierra winter carnival at Lake Tahoe."

Math
A band decides to sell protien bars to raise money for an upcoming trip. The cost (the amount the band pays for the protien bars) and the income the band receives for the protien bars are represented on the graph below. A- how many protien bars must been sold for the band'...

Geometry
An angle measures 5 degrees more than 4 times its complement. What is the angle? I understand that the formula would be 4x+5 degrees. Would this be the answer?

math
Mike makees the following table of the distances he travels during the first day of the trip. A suppose Mike continues riding at this rate. Write an equation for the distance mike travles after t hours. B sketch a graph of the equation. How did you choose the range of values ...

8th grade math
Thank u; +)Damon

8th grade math
Hoshi walks 10 meters in 3 seconds. A. What is her walking rate? B. At this rate, how long does it take her to walk 100meters? C. Suppose she walks this same rate for 50sec. How far does she walk? D. Write an equation that represents the distance d that hoshi walks in t seconds.

Geometry
Ray SP bisects angle RST. m<RSP if m<RST = 5/2y degrees and m<PST = (y+5) M< = The measure of angle

science
A uniform beam 6m long and weighing 4kg rest on support p and q placed left and right 1m from each end of the beam. Weight of mass 10kg and 8kg are placed near p and q respectively. On ecah end of the beam. Calculate the reation at p and q

Science
What is the mass (in grams) of water that is produced when 100.0 grams of nitrogen monoxide is reacted with 75.0 grams of hydrogen according tho the following balanced eguation? 2NO + 5H2 = 2NH3 + 2H2O

physics
Damon, thanks for your answer. Consider that the 20lb object is being pulled behind a bid rig truck traveling at 90mph, can it then be calculated as to what amount of horsepower, is being provided to move (in our case) a 20lb object, traveling at 90mph. If yes,what amount of ...

Math
If 10=0.1 what does 28 equal?

physics
X horsepower is equal an 20lb. Object traveling at 90mph. Is it possible to solve for X? and if so, what does X equal?

chemistry
What is the result we get when NaOH and Na2CO3 solution are added to alcohol respectively in difference test tubes? (2)Discuss the reactions of aldehydes with fehling's solution.Give the relevant equation. (3)How would ethanoic acid react with ammonia(NH3) and sodium ...

chemistry
What is the result we get when NaOH and Na2CO3 solution are added to alcohol respectively in difference test tubes? (2)Discuss the reactions of aldehydes with fehling's solution.Give the relevant equation. (3)How would ethanoic acid react with ammonia(NH3) and sodium ...

chemistry
What is the result expected when alkanols are tested on a litmus paper ?

anth
What evidence do you see, in the book Dancing Skeletons, of a holistic study?

Statistics
In a survey, the guess at the mean age for the class had a mean of 21.9 and a standard deviation of 3.03. Given that Normally distributed populations have a first quartile of Z=-0.67 and a third quartile of Z=.67, what does this suggest about whether or not these guesses are ...

statistics
In our initial survey, the guess at the mean age for the class had a mean of 21.9 and a standard deviation 3.03. Using this information, what would be the first and third quartile be for the class? ( P(Z<.25) and P(Z<.75) respectively) I think you use the Z score formula...

statistics
In our initial survey, the guess at the mean age for the class had a mean of 21.9 and a standard deviation 3.03. Using this information, what would be the first and third quartile be for the class? ( P(Z<.25) and P(Z<.75) respectively) I think you use the Z score formula...

statistics
In our initial survey, the guess at the mean age for the class had a mean of 21.9 and a standard deviation 3.03. Using this information, what would be the first and third quartile be for the class? ( P(Z<.25) and P(Z<.75) respectively) I think you use the Z score formula...

statistics
In our initial survey, the guess at the mean age for the class had a mean of 21.9 and a standard deviation 3.03. Using this information, what would be the first and third quartile be for the class? ( P(Z<.25) and P(Z<.75) respectively) I think you use the Z score formula...

marketing
Envision that you run a highly successful tattoo and piercing parlor in a small West Coast city. You are fairly certain that between you and your key competitor, you have saturated your target audience of people in their teens and 20s. To grow your business, you need to reach ...

Chemistry
.0533

statistics
In this summer school class there are 28 male students and 15 female students. An experiment is done that consists of selecting a student at random, and recording their gender. This is done 4 times WITH REPLACEMENT. 1) Fill in the following probability table for the number of ...

Algebra II
A rectangle’s length is one greater than its width and its area is 30 in2. What are the dimensions of the rectangle?

principles of marketing
i need help with understanding the different channels of distribution such as, conventional, vertical, horizonta and multichannel distriubtion

Accounting
Confused on the method used to solve this problem and could really use some help. The 5% is throwing me off as we don't know 5% on what amount and we assume that amount compounds over time? You are currently 25 years old and have just spent the past weekend in Vegas. As ...

Life Orientation
10-15 lines critical discuss 5 ways in which the human or environmental impacts on the community?

math
Caleb took a two and one-half hour nap after soccer practice on Saturday afternoon. His younger brother slept one and three-fifths times as long as Caleb. How many hours did his brother sleep?

math
A 9ft. Ladder is leaning against a wall and make a 50 degree angle with the ground. How far is the ladder from the base of the wall.

Algebra
y+x=-2 What is the y intercept? What is the ordered pairs?

Algebra
how do you graph y=6

albebra
What is the slope 0f x=-2

Algebra
Train a is traveling @ 60 miles per hour. Train b is traveling @ 80 miles per hour. A arrives @ 9:25 am and b arrives @ 9:40 am what ime will train b catch up to train a?

calculus2
And what would the second function be?

calculus2
Find two non-Riemann integrable functions whose sum is not Riemann integrable.

Statistics
Probabilities are between 0 and 1.00 so 1.02 cannot be a probability

math rate of change
slope is rise over run which is (y2-y1)/x2-x1) so to get y we have y-2=-4so y =-4+2 which is -2.

Algebra 1
X^2-14x+3=-10 Ineed to know how to find the discriminant quadratic formula and by tabe and graph it Please help me

algebra
The amount of money in an account with continuously compounded interest is given by the formula A=Pe^rt , where P is the principal, r is the annual interest rate, and t is the time in years. Calculate to the nearest hundredth of a year how long it takes for an amount of money ...

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